OMEGA SP-006 Layer N Pressure Monitoring and Control Smart Probe User Guide

OMEGA SP-006 Layer N Pressure Monitoring and Control Smart Probe

Notes Cautions and Warnings

If the equipment is used in a manner not specified in this manual, the protection by the equipment may be impaired.
Do not operate the equipment in flammable or explosive environments.
It is important to read and follow all precautions and instructions in this manual before operating or commissioning this device as it contains important information relating to safety and EMC. Failure to follow all the safety precautions may result in injury and/or damage to the equipment.
The following labels identify information that is especially important to note:
Note: Provides information that is important to successfully set up and use the SP-006.
Caution or Warning: Informs about the risk of electrical shock. Caution, Warning, or Important: Informs of circumstances that can affect the functionality of the instruments and must refer to accompanying documents.

Introduction

The Layer N SP-006 Pressure Monitoring Smart Probe provides an easy way to integrate Absolute or Gauge pressure readings and ambient temperature readings into the Layer N Ecosystem. The SP-006 accepts Layer N Smart Interfaces through its M12 8-pin connector. See Figure 1.
For additional functionality, the Layer N SP-006 features 2 configurable discrete I/O pins which can be used for a myriad of applications including driving relays, physical alarms, or sensing dry contacts like door switches. The SP-006 can also be utilized as an edge controller with autonomous independent decision-making capabilities to generate local alarms or provide control outputs based on sensor inputs. The optional M12.8-T-SPLIT Sensor Splitter can be used to access the Discrete I/O pins on the M12 8-pin connector. The optional M12.8-S-M-FM mating connector can be utilized to easily connect wire leads to the SP-006 or Sensor Splitter. See Figure 2.

Included with your SP-006

• SP-006 Unit
•  Quick Start Guide

Additional Material Needed

• Layer N Smart Interface (wired IF-001 or wireless IF-006)
• Computer with Windows OS
• SYNC configuration software

Optional Materials

• M12.8-S-M-FM screw terminal connector (needed for discrete I/O)
• DM12CAB extension cable
  

Specifications

• INPUT POWER
  Voltage: 2.8 VDC – 3.3 VDC

• DIO DISCRETE INPUTS
  VinHighThreshold = 2.2 VMAX
  VinLowThreshold = 0.3 VMIN
  VinMAX = 30 VDC

• DIO DISCRETE OUTPUTS
  2x Open Drain 100 mA max
  VMAX = 30 VDC

• PRESSURE
  Range: (See Ordering Guide below)
  Accuracy: ±0.5% full-scale
  Resolution: 0.1 kPa
  Absolute Maximum Pressure: 1.5 time full-scale for each range
  Caution: Do not exceed 500 psi

• TEMPERATURE
  Range: -10 to 80°C (14 to 176°F)
  Accuracy: ±1.5°C
  Resolution: 0.1°C

• ENVIRONMENTAL
  Storage Temperature: -40 to 85°C (-40 to 185°F) less than 95% RH, non- condensing
  Environmental Rating: IP50

• GENERAL
  Configuration: Configurable via Layer N Smart Interface and SYNC configuration software
  Software: Compatible with OEG, SYNC, and OMEGA Cloud

Ordering Guide

Model Number|
---|---
SP-006-1-C-050G| Layer N pressure monitoring and control smart probe with discrete I/O – 50 psi 350 kPa Gauge
SP-006-1-C-050A| Layer N pressure monitoring and control smart probe with discrete I/O – 50 psi 350 kPa Absolute
SP-006-1-C-100G| Layer N pressure monitoring and control smart probe with discrete I/O – 100 psi 700 kPa Gauge
SP-006-1-C-250G| Layer N pressure monitoring and control smart probe with discrete I/O – 250 psi 1700 kPa Gauge

Notes:

• Model Numbers above have a ¼ – 18 NPT male pressure port (i.e. ordering code C)
• Inquire with Omega Engineering for other pressure port options. Refer to Figure 3.

Hardware Setup

Connecting your Layer N Smart Interface

The SP-006 requires a Layer N Smart Interface to connect to a computer. Omega offers a variety of Layer N Smart Interfaces such as the wired IF-001 (USB) and IF-002 (Modbus) or the wireless IF-006. Use the M12 8-Pin Connector diagram below to connect the SP-006 to a Layer N Smart Interface.

Figure 4: M12 8-Pin Connector front view

SYNC Configuration

Layer N Smart Probe products are easily configurable through Omega’s SYNC configuration software. Ensure SYNC is running on a Windows OS computer before continuing. Connect the SP-006 to a computer running SYNC through your Layer N Smart Interface to begin.
Note: SYNC is available to download for free on the Omega website.

Connecting to SYNC – Automatic Detect

Once the SP-006 and Layer N Smart Interface are connected to a computer, SYNC will automatically detect the device and display readings.
Note: If live readings from the SP-006 are displayed on SYNC, skip ahead to the section titled Input Configuration.

Connecting to SYNC – Manual

If SYNC does not automatically detect the device, follow these instructions to manually connect it.
Step 2: Proceed through the Add Device Wizard and click End Device/Probe.

Communication Interface

Set the communication parameters for the Layer N Smart Interface that you are connecting.
Note: The connection type and parameters must be accurate for a proper connection to be established. Failure to accurately set up communication parameters may result in communication errors.

•  Connection Type: Select the type of connection you have between your SP-006 and your computer.

•  Command Timeout: The maximum time (in milliseconds) for a command to be completed before the command is aborted.
  Note: The default command timeout is 500 milliseconds. It is recommended that this section be left  unchanged to avoid communication errors.

• Device Address: The default device address is 1. The numerical value will automatically increase to the next available device address for every new device added to prevent duplicate addresses.

• Device IP or Port: The COM port number that your device is connected to on your computer.

• Baud Rate: Controls bits per second

• Data Bits: The number of bits in each character sent.

• Parity: A means of checking the correctness of a character by adding an extra bit to the character and setting the value based on all the other bits in the character.

• Stop Bits: The number of bits used to indicate the end of the character. Once you have completed setting the communication parameters for your device, click Finish.

Input Configuration

The SP-006 provides readings for pressure, temperature, and discrete I/O (DIO). To use these features, click the Inputs configuration tab on SYNC and choose your preferred input mix from the Type dropdown. The SP-006 allows selecting pressure and discrete I/O only or pressure, temperature, and discrete I/O.

Pressure
The SP-006 Pressure readings are fixed based on the specific model. The user may calibrate the Pressure sensor using Single or Dual-Point calibration by clicking the Calibration button. Figure 7: SYNC interface pressure input

Pressure User Calibration
After clicking the Calibration button, the user must follow the onscreen directions to calibrate the device.

Figure 8: SYNC pressure user calibration

Temperature
The SP-006 Temperature readings may be configured under the advanced scaling options which include Gain and Offset.

Figure 9: SYNC interface temperature input

5.3.3 Discrete Input/Output (DIO)
The Layer N SP-006 features 2 configurable discrete I/O pins DIO_0 and DIO_1. These DIO pins can be used for a myriad of applications including driving relays, physical alarms, or sensing dry contacts like door switches. The user may configure the polarity of the inputs (active HIGH or active LOW) or Disable the DIO to utilize the outputs (ON/OFF, PWM, SERVO). The Advanced Scaling option does not apply to the DIO input reading.

Figure 10: SYNC interface discrete I/O input configuration

The Discrete I/O input shares the same circuitry as the output. The internal process drives the output control signal to turn on the output driver which will force the output low. When the state of the DIO input signal is to be read the processor applies 3.3 VDC to the Input Bias signal and reads the level detected at the Input Sense. If the output is inactive an external signal may be used to force the input level low. A diode protects external positive voltages, allowing the output driver to activate loads greater than the internal 3.3 VDC.

Setting DIO as an Input
To use a DIO pin as an input, make sure it is set to Active Low (default) in the Output Tab in SYNC.

Figure 12: SYNC interface outputs tab

Then, in the Input Tab, select a Type from the drop-down which includes DIO. Each DIO pin has an internal pull-up, but to save power, the internal pull-up is only active when the unit takes a reading.

Advanced Scaling Options
The Layer N SP-006 allows for advanced scaling options on the pressure and temperature inputs. The Advanced Scaling checkbox can be selected to expand additional configuration options. A gain and/or offset can be applied to the input reading and the displayed unit can be changed.
To apply a gain or offset to the input, expand the Advanced Scaling menu and ensure that both Apply Scaling and Lock are checked. Under Scaling, the gain and offset values can be adjusted. Both positive and negative values may be entered as well as decimal numbers. The equation for the scaled input value is given below.
= ( × ) +
The displayed units can be changed by entering a new value in the Unit field and clicking Apply Settings. This field is limited to a maximum of 4 characters. Note that changing the Unit field does not change the base unit type, only the display name. The Lock checkbox must be selected to use the user-defined Unit field. Unchecking the Lock checkbox and clicking Apply Settings will revert the unit display back to the default setting.

Output Configuration

The SP-006 offers two discrete outputs that share circuitry with the discrete inputs. If an output is to be used then the corresponding input pin must be set to Disable. See section 5.3.3 Discrete Input/ Output (DIO) for more information.

Figure 13: SYNC interface SP-006 DIO_0 and DIO_1 set to Disable

There are three types of output options – On/Off, Pulse-Width Modulation (PWM), or Servo. See section  for more information on each type.

Figure 14: SYNC interface Output Configuration

Outputs may be configured as either Active High or Active Low. When configured as Active High the output conducts normally and becomes high impedance when activated. When configured as Active Low, the Open-Drain output is high impedance normally and will conduct when activated.

An output may be controlled in one of three ways – a scaled mapping to an input, an on/off control from an input setpoint, or as an input alarm. Sections 5.4.2 through 5.4.4 describe these output control methods.

Device Output Range/Types
There are three types of output options – On/Off, Pulse-Width Modulation (PWM), or Servo. This section describes these output options.

ON/OFF Output Type
The ON/OFF output mode switches the output to be a binary ON or OFF. Depending on if the output is configured as Active Low or Active High, the ON/OFF mode can correspond to different polarities.

Pulse-Width Modulation (PWM) Output Type
Pulse-Width Modulation (PWM) controls the amount of power given to a device by cycling the on/off phases of a discrete signal. PWM consists of a duty cycle and frequency. The Duty Cycle measures the amount of time a signal is in the ON state as a percentage. The frequency controls how fast the PWM cycle is repeated. Users can select between the following settings:

Rate

| 100 Hz| Signal has a constant 100 Hz frequency with 0-100% Duty Cycle
10 Hz| Signal has a constant 10 Hz frequency with 0-100% Duty Cycle
1 Hz| Signal has a constant 1 Hz frequency with 0-100% Duty Cycle
0.1 Hz| Signal has a constant 0.1 Hz frequency with a 0-100% Duty Cycle
Signal Type| Active LOW| When the output is active, it is pulled to ground (LOW)
Active HIGH| When the output is active, it is in a high impedance state

Example shows a PWM output signal configured with a 100 Hz frequency and active HIGH outputs. The duty cycle has been set to 20%.

SERVO Output Type
The SERVO output allows driving servo motors that control position. A Servo output is a special case of the PWM output, where the ON time varies between 1.0 msec and 2.0 msec or between 0.5 msec and 2.5 msec, with the lower bound representing 0 degrees and the upper bound representing 180 degrees of angular travel. The typical non-critical frequency is 50 or 100 Hz. Servo outputs are always active high.

Sensor Output Mapping
The SP-006 allows mapping a scaled copy of any of the input values to any of the outputs. To set a mapped output, it must not be associated with any alarm or ON/OFF control module. Two user-defined values, Scaling Minimum and Scaling Maximum, define the sensor range that is mapped to the output. A Factory Reset sets the Input Minimum to 0 and the Input Maximum to 100.

Figure 18: Sensor output mapping configuration example

The scaling equations for direct and reverse output percentages are given below. Example: The figures below and above display a PWM output direct-mapped to a Rate input. The minimum expected input rate is 25 Hz and the maximum expected rate is 150 Hz. A value of 50 Hz read at the input is then mapped to a PWM output with an 80% duty cycle.

ON/OFF Control Module
To configure an ON/OFF control module on a device, first ensure that the desired output pin is not associated with any input alarms and that it is set as No Mapping in the Output Mapping menu in the Outputs tab. The ON/OFF control module can be used with any selected output type including ON/OFF, PWM, and SERVO. When enabled in PWM mode, ON corresponds to 100% duty cycle. When enabled in SERVO mode, ON corresponds to 100% angular travel. In the Outputs Tab in SYNC click on the  icon located to the right of the available outputs. Clicking the  icon will open the Define ON/OFF Control dialog box as seen below.

Figure 20: SYNC interface ON/OFF control module functions

The Enable Control checkbox enables the ON/OFF control module. If this box is unchecked, the output will be disabled but the module with all its settings will remain available to be enabled at a later time.
The Inputs dropdown lists the available input sources and will depend on how the device is configured in the Inputs tab.
The Setpoint field sets the threshold for activating the ON/OFF control module. The unit of the Setpoint field will be the same as the unit of the chosen Input.
The Control Actions dropdown has options for direct or reverse control. In direct mode, once the Setpoint value is reached then the output will be set to ON. In reverse mode, once the Setpoint value is reached then the output will be set to OFF.
The DeadBand field together with the direct or reverse control action configures a deadband range around the Setpoint where the ON/OFF control does not toggle. The unit of the DeadBand field will be the same as the unit of the chosen Input.

• Example 1: the setpoint is configured for a 50 Hz rate input with a deadband of 10 Hz with direct control action. The output will activate if the input rises above 60 Hz. Conversely, the output will become inactive if the input falls below 50 Hz.
• Example 2: the setpoint is configured for a 50 Hz rate input with a deadband of 10 Hz with reverse control action. The output will activate if the input falls below 40 Hz. Conversely, the output will become inactive if the input rises above 50 Hz.

The Save button saves and applies the configurations settings to the ON/OFF control module. The Delete button only appears for a previously saved ON/OFF control module and it removes the module and allows other output types to be configured such as an alarm or mapping.

Setting an Alarm
Alarms are set by clicking the icon in SYNC on the desired input signal found in the Input Tab.

Figure 21: SYNC alarm configuration interface

Configure the Condition that triggers the alarm by selecting an option from the drop-down such as Above, Below, Outside the Range, or Within the Range. The Threshold field(s) will change to display whatever is appropriate for the option chosen such as a High Threshold for an Above condition or a Low Threshold for a Below condition. A Duration can be set for the trigger as well where the condition must be met for a certain amount of time before the alarm flags.
Under the Action menu, the option to transmit or not transmit a notification can be set. The option to enable “Turn On” an output can also be set. The output chosen must not be currently used in a sensor mapping or ON/OFF control module. The data transmission interval may also be changed upon triggering an alarm, e.g. increase the rate of transmission if an excessive value is detected.
The Recovery menu allows the option to clear the alarm after a certain Duration (in Seconds) once the trigger condition is no longer met. The transmission interval can also be Reset to the normal system setting once the alarm is cleared. To create a new alarm, click the plus icon  and a new alarm will be added. To remove an alarm once it  is created, select the alarm in question on the left side of the alarm panel and click the delete icon

Appendix: SP-006 Registers

The following Appendix provides the registers and list index for the Layer N SP-006 Pressure monitoring Smart Probe. This information is intended to aid users who will be making configurations and adjustments to their Layer N SP-006 Pressure monitoring Smart Probe through the Command Line Interface or other custom interfaces.

Register Base Addresses

Smart Probe devices share a common platform architecture that provides extensive monitoring and control capabilities through a set of platform generic registers. These registers may be accessed using I2C based commands directly to the Smart Probe devices or through a set of Modbus-based registers when using Omega Interface devices. Refer to the Smart Sensor Device Interface manual for further information.
When powered on, or after a device reset, each Smart Sensor-based device will enumerate 1 or more sensor instances which are described by the device- specific Sensor Descriptors which include configuration options, measurement type, and units of measure for the corresponding sensor values. Additional sensor information is provided in sensor-specific IPSO object descriptions which include extended measurement type, precision, and tracking of minimum/maximum readings.
Sensors are always enumerated in the order Pressure, Temperature (T), and DIO.
Each enumerated Sensor has a Descriptor Base address location and a Sensor IPSO / Configuration structure address location based on the sensor mix selected.

Pressure Sensor

Sensor| Descriptor Base| IPSO/Configuration| Enumerated Sensor Mix
---|---|---|---
SP-006-0| SP-006-1
0| 0x0060 (0xf030)| 0x08a8 (0xf454)| Pressure
1| 0x0068 (0xf034)| 0x09a8 (0xf4d4)| Temperature| Temperature
2| 0x0070 (0xf038)| 0x0aa8 (0xf554)| | DIO
3| 0x0078 (0xf03c)| 0x0ba8 (0xf5d4)| |

Pressure Descriptor
The SP-006 configures the sensors based on the factory device list and user- specified list index. The Sensor Configuration and Sensor Device fields may be written to provide control of the overall function of the channel and the signal types used.

Sensor| Descriptor Base| IPSO/Configuration| Enumerated Sensor Mix
---|---|---|---
SP-006-0| SP-006-1
0| 0x0060 (0xf030)| 0x08a8 (0xf454)| Pressure
1| 0x0068 (0xf034)| 0x09a8 (0xf4d4)| Temperature| Temperature
2| 0x0070 (0xf038)| 0x0aa8 (0xf554)| | DIO
3| 0x0078 (0xf03c)| 0x0ba8 (0xf5d4)| |

Pressure Descriptor
The SP-006 configures the sensors based on the factory device list and user-specified list index. The Sensor Configuration and Sensor Device fields may be written to provide control of the overall function of the channel and the signal types used.

Pressure Sensor Type

Pressure Data Type/Format

Pressure Data Type/Format

7| 6| 5| 4| 3| 2| 1| 0
Smart Sensor| Configuration Enable| Factory Calibrate| | Data Type
0| 0| 0| 0| 6 == Floating point

• Data Type
  The 4-bit Data Type field determines the type of data of the specific sensor.

• Factory Calibrate
  Factory calibration is available for the SP-006 process inputs. Clearing this bit will disable the factory calibration values.

• Writeable
  The writeable bit is cleared, indicating that the sensor values may not be overwritten.

Temperature Configuration Byte

Pressure Sensor Configuration

7| 6| 5| 4| 3| 2| 1| 0
Available| Assigned/ Channel| Apply Scaling| Lock| Sensor Range/Type
0| 0| ?| ?| Read Only – Indicates pressure range

• Lock
  If set, the user-specified units of measure string (4-character maximum) will be used in place of the default.

• Apply Scaling
  For more information on Gain and Offset, refer to the Smart Sensor Manual. If set, the user-defined Offset, and Gain values will be used to adjust the sensor reading: Result = (Raw Reading * Gain) + Offset

• Assigned
  The Assigned bit will always read as 0. Refer to the Smart Sensor Device Interface documentation for further information.

• Available
  The Available bit will always read as 0. Refer to the Smart Sensor Device Interface documentation for further information.

• Sensor Range / Type
  The lower 4-bits of the Range byte are read-only.

Pressure Sensor Device Byte
The Device byte is read-only.

Pressure Sensor Device Byte

7| 6| 5| 4| 3| 2| 1| 0
Reserved| Type

0

|

0

|

0

|

0

|

0

|

0

|

Pressure User Calibration Parameters
The SP-006 provides four User Calibration registers that allow setting a 2-point calibration/linearization. The four parameters may only be set while the device is in the User Calibrate mode. When the calibration function is triggered the device will calculate the Gain and Offset used in the linearization process. The calibration process is performed by the following steps:

1. Send Sensor Function Calibrate Mode trigger to set the device to calibration mode.
2. Apply a known pressure and record in the User Calibration register 1 (Actual Low).
3. Record the measured value in User Calibration register 0 (Reading Low)
   •  A Sensor Capture Low trigger function allows automatic capturing of the value.
4. Apply a 2nd known pressure and record in the User Calibration register 3 (Actual High)
5. Record the measured value of the 2nd weight in User Calibration register 2 (Reading High)
   • A Sensor Capture High trigger function allows automatic capturing of the value.
6.  Send the Sensor Function Start Calibrate trigger to generate the Gain and Offset value
   The four calibration parameters represent two sets of reading, where X = actual applied pressure and Y represents the reading captured by the device. After the calibration process:

Note: The device must be put into the Calibration Mode to access the User Calibration parameters.
While in the Calibration mode, the raw Reading value will be displayed. To perform a single point calibration (Offset only), set the High Actual equal to the Low Actual (Gain) or the High Reading equal to the Low Reading value.

User Calibration Parameter| Name| Range| Factory Reset| Description
---|---|---|---|---
0| Low Reading (X1)| +/- 100000| 0.0| Value read by SP-006 (lower value)
1| Low Actual (Y1)| +/- 100000| 0.0| Actual applied load (lower value)
2| High Reading (X2)| +/- 100000| Full Scale| Value read by SP-006 (higher value)
3| High Actual (Y2)| +/- 100000| Full Scale| Actual applied load (higher value)

• IPSO Pressure Sensor Definition
  The SP-006 IPSO pressure definition provides signal range, measured min/max values, IPSO object type information.

• Precision
  The measured pressure value is rounded to provide +/- 0.5 kPa degree resolution.

• Sensor Trigger Function
  The Sensor Trigger function is used to reset the IPSO min/max values and to control the Calibration process.

Sensor Trigger Function

7| 6| 5| 4| 3| 2| 1| 0
| | | | | | | Reset Min/Max
0| 0| 0| 0| 0| 0| 0| ?
| | | | | | |
15| 14| 13| 12| 11| 10| 9| 8
| | Calibration Reset| Calibration Status| Calibration Mode| Capture High| Capture Low| Calibration Start
0| 0| 0| 0| 0| 0| 0| 0

Setting the Reset Min/Max bit to 1 will reset the Min/Max values recorded by the IPSO process. The Calibration mode is entered by writing a 1 to the Calibration Mode bit. While in the calibration mode the calibration registers may be accessed, the Capture High/Low may be used to capture real-time values and the Calibration Start may be set.
When the Calibration Start bit is set the Calibration Status bit will remain set until the calibration process is complete.
Setting the Calibration Reset bit will clear the calculated Gain and Offset values.

Max Range
The SP-006 allows pressures of 150% of the full range value.

Temperature Sensor

Temperature Descriptor
The SP-006 provides a discrete temperature sensor interface.  The SP-006 configures the sensors based on the factory device list and user-specified list index. The Sensor Configuration and Sensor Device fields may be written to provide control of the overall function of the channel and the signal types used.

Temperature Sensor Type

DIO Data Type/Format

The SP-006 supports extended configuration and provides factory calibration. All data values are returned as 32-bit floating-point values.

DIO Data Type/Format

7| 6| 5| 4| 3| 2| 1| 0
Smart

Sensor

| Writeable| Factory

Calibrate

| reserved| Data Type
0| 0| 0| 0| 6 == Floating point

• Data Type
  The 4-bit Data Type field determines the type of data of the specific sensor.

• Factory Calibrate
  Factory calibration is available for the SP-006 process inputs. Clearing this bit will disable the factory calibration values.

• Writeable
  The writeable bit is cleared, indicating that the sensor values may not be overwritten.

• Temperature Configuration Byte
  DIO Input Configuration

  7| 6| 5| 4| 3| 2| 1| 0
  Available| Assigned| Apply Scaling| Lock| Sub Channel Selection
  0| 0| 1| ?| 0x03 == bits 0 and 1

• Lock
  If set, the user-specified units of measure string (4-character maximum) will be used in place of the default.

• Apply Scaling
  For more information on Gain and Offset, refer to the Smart Sensor Manual. If set, the user-defined Offset and Gain values will be used to adjust the sensor reading: Result = (Raw Reading * Gain) + Offset

• Assigned
  The Assigned bit will always read as 0. Refer to the Smart Sensor Device Interface documentation for further information.

• Available
  The Available bit will always read as 0. Refer to the Smart Sensor Device Interface documentation for further information.

• Temperature Device Byte
  The Temperature Device Byte is not used.

• Temperature Parameters
  There are no user-accessible parameters for the temperature sensor.

• Temperature User Calibration
  There are no temperature user calibration registers assigned.

• IPSO Temperature Sensor Definition
  The SP-006 IPSO temperature definition provides signal range, measured min/max values, IPSO object type information. Offset| Name| Value| Description
  ---|---|---|---
  0xa8| Sensor Type| 3349| Bit Mapped Digital
  0xaa| Precision| 0| Provides reading of xxx
  0xac| Sensor Trigger| ??| Write 0x0001 force reset of min / max
  0xb0| Min Measured| ??| Minimum reading since the last reset
  0xb4| Max Measured| ??| Maximum reading since the last reset
  0xb8| Min Range| 0| Minimum reading
  0xbc| Max Range| 3| Maximum reading

Precision
The measured temperature value is rounded to provide ±0.1 degree resolution.
Sensor Trigger Function
The Sensor Trigger function is used to reset the IPSO min/max values and to control the Calibration process.

Sensor Trigger Function

7| 6| 5| 4| 3| 2| 1| 0
0| 0| 0| 0| 0| 0| 0| Reset Min/Max
15| 14| 13| 12| 11| 10| 9| 8
0| 0| 0| 0| 0| 0| 0| 0

Setting the Reset Min/Max bit to 1 will reset the Min/Max values recorded by the IPSO process. No user calibration is supported in the temperature sensor and all configuration bits should be written as 0.

Discrete I/O Interface
The SP-006 supports a DIO Interface that provides 2 discrete inputs that are hardwired to the outputs. These may be used to detect the state of external switches (output off) or to monitor the state of the outputs.

DIO Descriptor

DIO Sensor Type
The interface provides a bitmapped input of the 2 digital signal lines.

DIO Data Type/Format

DIO Data Type/Format

7| 6| 5| 4| 3| 2| 1| 0
Smart

Sensor

| Writeable| Factory

Calibrate

| reserved| Data Type
0| 0| 0| 0| 6 == Floating point

• Data Type
  The 4-bit Data Type field determines the type of data of the specific sensor.

• Factory Calibrate
  The Factory Calibrate bit is not used for DIO types.

• Writeable
  This indicates that the sensor value may be overwritten. Not used on DIO inputs.

• Smart Sensor
  Refer to the Smart Sensor Device Interface documentation.

DIO Input Configuration

DIO Input Configuration

7| 6| 5| 4| 3| 2| 1| 0
Available| Assigned| Apply

Scaling

| Lock| Sub Channel Selection
0| 0| 1| ?| 0x03 == bits 0 and 1

• Lock
  If set, the user-specified units of measure string (4 character maximum) will be used in place of the default DIN.

• Apply Scaling
  If set, the user-defined Offset and Gain values will be used to adjust the sensor reading: Result = (Raw Reading * Gain) + Offset

• Assigned
  The Assigned bit will always read as 0. Refer to the Smart Sensor Device Interface documentation for further information.

• Available
  The Available bit will always read as 0. Refer to the Smart Sensor Device Interface documentation for further information.

DIO Device Configuration

DIO Device Configuration

7| 6| 5| 4| 3| 2| 1| 0
Reserved| DIN 1| DIN 0
0| 0| 0| 0| ENABLE| INVERT| ENABLE| INVERT
1| 1| 1| 1

• Invert
  If the Invert bit is set the input is active LOW.

• Enable
  If the Enable bit is set the input is enabled.

The DIO input IPSO definition provides signal range, measured min/max values, IPSO object type information.

Sensor Trigger Function
The Sensor Trigger function is used to reset the IPSO min/max values as well as controlling the Calibration process.

Sensor Trigger Function

7| 6| 5| 4| 3| 2| 1| 0
0| 0| 0| 0| 0| 0| 0| Reset Min/Max
15| 14| 13| 12| 11| 10| 9| 8
0| 0| 0| 0| 0| 0| 0| 0

Setting the Reset Min/Max bit to 1 will reset the Min/Max values recorded by the IPSO process. No User Calibration process is supported on the DIO inputs and all Configuration bits should be written as 0.

Output Configuration Registers

Outputs share a common structure which consists of 3-fields mapped to a 16-bit unsigned integer, accessible in the Smart Sensor register map.

Output| Name| Modbus Address| I2C

Address

| Size| Typical Description
---|---|---|---|---|---
0| Output 0 Descriptor| 0xf09a| 0x0134| uint16| PWM 0 (see below)
1| Output 1 Descriptor| 0xf09b| 0x0136| uint16| PWM 1 (see below)
2| Output 2 Descriptor| 0xf09c| 0x0138| uint16| Phantom (non-configurable)
3| Output 3 Descriptor| 0xf09d| 0x013a| uint16| Phantom (non-configurable)

Refer to the specific output type for further information.

Scaling Minimum / Maximum Values
When Input Mapping is used the user may specify the input signal range through the Input Minimum and Input Maximum parameters. There is one pair of registers for each of the 4 possible outputs.

Sensor| Name| Modbus Address| I2C

Address

| Size| Description
---|---|---|---|---|---
0| Output 0 Low Scale| 0xf1f0| 0x03e0| float| Sets lower input range
Output 0 High Scale| 0xf1f2| 0x03e4| float| Sets upper input range
1| Output 1 Low Scale| 0xf1f4| 0x03e8| float| Sets lower input range
Output 1 High Scale| 0xf1f6| 0x03ec| float| Sets upper input range
2| Output 2 Low Scale| 0xf1f8| 0x03f0| float| Sets lower input range
Output 2 High Scale| 0xf1fa| 0x03f4| float| Sets upper input range
3| Output 3 Low Scale| 0xf1fc| 0x03f8| float| Sets lower input range
Output 3 High Scale| 0xf1f2e| 0x03fc| float| Sets upper input range

When either the Low Scale or High Scale value changes an internal calculation is performed to calculate the linear transformation to be applied to the sensor reading.

Output Values
Outputs use float values which represent the percentage of full scale. If the output is not mapped, the value written (0 – 100%) is identical to the value that is read back.
If the output is mapped, the scaling values are used to transform the minimum input value to 0% and the maximum input value to 100%.

Output| Name| Modbus Address| I2C

Address

| Size| Description
---|---|---|---|---|---
0| Output 0 Value| 0xf078| 0x00f0| float| Percent of full-scale value (0-100%)
1| Output 1 Value| 0xf07a| 0x00f4| float| Percent of full-scale value (0-100%)
2| Output 2 Value| 0xf07c| 0x00f8| float| Percent of full-scale value (0-100%)
3| Output 3 Value| 0xf07e| 0x00fc| float| Percent of full-scale value (0-100%)

Output Names
Each output has a name. The default names for the outputs are Output_0 through Output3. The default names may be overwritten, such as ‘Stack Lite’ or ‘Control_ Valve’. Names are restricted to 16 characters.

Output| Name| Modbus Address| I2C

Address

| Size| Description
---|---|---|---|---|---
0| Output 0 Name| 0xf078| 0xf720| char[16]| Defaults to Output_0
1| Output 1 Name| 0xf07a| 0xf728| char[16]| Defaults to Output_1
2| Output 2 Name| 0xf07c| 0xf730| char[16]| Defaults to Output_2
3| Output 3 Name| 0xf07e| 0xf738| char[16]| Defaults to Output_3

The Output names are retained until a factory reset occurs. It is strongly recommended that:

1. Spaces within the name should be replaced with the ‘_’ character.
2.  All output names on a particular device are unique – if duplicate functions are supported append a ‘_x’ string, where x represents the instance. For example, Stack_Lite_1 and Stack_Lite_2 could be used if 2 stack lights are being connected.

Output Configuration

The SP-006 provides two output signals which may be configured for ON/OFF, PWM, or SERVO outputs through the Output Configuration registers. The remaining outputs are assigned as phantom devices which are non-configurable.
The highlighted entries show typical default configurations.

• Rate
  The Rate determines the repetition rate, or frequency, of the discrete output. For On/Off outputs the rate field is ignored.

• PWM Rate
  The SP-006 supports the following PWM frequencies: PWM Rate| Name| Description
  ---|---|---
  0| 100 Hz| PWM signal has constant 100 Hertz frequency (10 msec repetition rate) with 0 – 100 % duty cycle
  1| 10 Hz| PWM signal has constant 10 Hertz frequency (100 msec repetition rate) with 0 – 100 % duty cycle
  2| 1 Hz| PWM signal has constant 1 Hertz frequency (1 second repetition rate) with 0 – 100 % duty cycle
  3| 0.1 Hz| PWM signal has constant 0.1 Hertz frequency (10 second repetition rate) with 0 – 100 % duty cycle

• SERVO Rate
  Smart Sensor probes support the following SERVO frequencies: Servo Rate| Name| Description
  ---|---|---
  0| 100 Hz| PWM signal has constant 100 Hertz frequency (10 msec repetition rate) with 0 – 100 % duty cycle
  4| 50 Hz| PWM signal has constant 50 Hertz frequency (20 msec repetition rate) with 0 – 100 % duty cycle

• Output Type
  Smart Sensor probes support NULL (0), ON/OFF (1), PWM (2) and SERVO (3) outputs. When set to NULL the output signal will be left in a high impedance state. When set to ON/OFF the Rate and Servo Range controls have no effect. When the SERVO type is selected the Duty-Cycle is restricted so the output signal is either 0.5 – 2.5 msec or 1.0 to 2.0 msec based on the Servo Range bit.

• Active State
  Smart Sensor discrete outputs may be configured as Active HIGH or Active LOW. When set to 1 (Active High), the output will be high impedance when active. When set to 0 (Active Low), the output will be low impedance (~ 0.0 volts) when active. The Factory reset value is 0 (Low).

• Mapping Enabled
  The read-only Mapping Enabled bit indicates that the output may be optionally directly mapped to a sensor input based on the Sensor Mapping field. If the Mapping Enabled bit is clear no mapping is supported, and the Sensor Mapping field is ignored.

• Sensor Mapping
  The Sensor Mapping value may select ‘no mapping’ or any of Sensor 0..3. If no mapping is selected the output may be directly controlled by writing a value from 0 – 100 % to the internal Output Value. If a Sensor is selected and the hardware supports the mapping the output will track the selected sensor value, scaled by the Input Minimum and Input Maximum values.
  If Sensor Mapping is enabled for PWM outputs the scaling values are used such that a signal input at or below the Scaling Low-value results in a 0% output and a signal input at or above the Scaling High-value results in a 100% PWM duty cycle.
  If Sensor Mapping is enabled for SERVO outputs the scaling values are used such that a signal input at or below the Scaling Low-value results in a minimum (0.5 or 1.0 msec) pulse width and a signal input at or above the Scaling High-value results in a maximum (2.0 or 2.5 msec) pulse width.

WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product.
If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion; or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s control. Components in which wear is not warranted, include but are not limited to contact points, fuses, and triacs.
OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by the company will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of OMEGA with respect to this order, whether based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall not exceed the purchase price of the component upon which liability is based. In no event shall OMEGA be liable for consequential, incidental or special damages.
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical applications or used on humans. Should any Product(s) be used in or with any nuclear installation or activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility as set forth in our basic WARRANTY/DISCLAIMER language, and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product(s) in such a manner.

RETURN REQUESTS/INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return package and on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit. FOR WARRANTY RETURNS, please have the following information available BEFORE contacting OMEGA:

1. Purchase Order number under which the product was PURCHASED,
2. Model and serial number of the product under warranty, and
3. Repair instructions and/or specific problems relative to the product.

FOR NON-WARRANTY REPAIRS, consult OMEGA for current repair charges. Have the following information available BEFORE contacting OMEGA:

1. Purchase Order number to cover the COST of the repair,
2. Model and serial number of the product, and
3. Repair instructions and/or specific problems relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest in technology and engineering.
OMEGA is a trademark of OMEGA ENGINEERING, INC.
© Copyright 2019 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.

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References

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