SIGNALFIRE WIOM-MINI-IOMIX1-xxxx Wireless I-O Mini Module Instruction Manual

WIOM-MINI-IOMIX1-xxxx Wireless I-O Mini Module
Instruction Manual

The SignalFire Wireless I/O Module Mini can send analog and digital I/O to a SignalFire Gateway or mirror the digital I/O wirelessly to another Wireless I/O Mini Module, acting as a wire replacement.
The SignalFire Wireless I/O Module Mini has the following features:

• 1 Analog input (1-5V)
• 2 Digital inputs
• 2 Relay outputs (2 SPDT)
• Wide range DC power input, 6-36 VDC
• Low power consumption
• DIN rail mount with pluggable screw terminal blocks
• Status LEDs

Specifications

Power| 6-36 VDC (25mA average @12V no relays energized, additional 15mAmax for each energized relay)
---|---
Temperature Rating| -40°C to +65°C
Analog Input| 0-5V Signal (10V Max)
Digital Inputs| Dry Contact or 30 Volts Max (push-pull), 2kHz maximum frequency
Digital Outputs| 2 SPDT’s, max 30 VDC @ 2 Amps, 250 VAC @ 0.25 Amps
Radio Frequency| 902-928MHz ISM Band, FHSS radio, RP-SMA connector
FCC and IC Certified. Contains FCC ID: W8V-SFTS500, IC: 8373A-SFTS500
Compliance| Certified for use in Class I, Division 2, Groups A, B, C, D. Temperature Code T5

Dimensions

Hazardous Location Certification

The Wireless IO Module is rated Class 1 Division 2 non-incendive.
WARNING: EXPLOSION HAZARD. DO NOT REMOVE OR REPLACE COMPONENTS UNLESS POWER HAS BEEN DISCONNECTED OR THE AREA IS FREE OF IGNITIBLE CONCENTRATIONS.
WARNING – EXPLOSION HAZARD Substitution of components may impair suitability for Class I, Division 2
WARNING – EXPLOSION HAZARD Do not disconnect while the circuit is live unless area is known to be nonhazardous
WARNING – The Wireless IO Module must be installed in a suitable enclosure for the intended environment
WARNING – All wiring methods must be in accordance with the NEC

Connections and Components

Power
Power must be provided by the Power Input screw terminals (6-36VDC). The module power requirements at 12VDC is 25mA on average plus 15mA per energized relay channel.

Antenna
The antenna port is a standard RP-SMA connector. Connect this port to a suitable 900MHz antenna.
SignalFire can supply a variety of antennas for use with the modules.

Analog Input
The analog input operates as a passive voltage input (1-5V).
Wire the analog voltage to the set of screw terminals. The maximum input voltage is 10 Volts. If the input is a 4-20mA signal, use a high-precision 250Ω resistor from the analog input terminal to the ground to convert the signal to 1-5V.

Digital Inputs
The digital inputs (2 total) can be dry contact or voltage (must be push-pull and pull to ground, 30 Volts max). Be sure to connect the ground bus from the module to either the ground of the voltage device or the dry contact.

The digital inputs report their current state, as well as input frequency. The DI pulse counter increments only when the state changes from 0 to 1. The Instantaneous Frequency registers are the number of pulses per second within 2 seconds of check-in multiplied by 10. The Average Frequency registers are the number of pulses per second over the period between two check-ins multiplied by 10. The Counts/Min registers are the total number of pulses per minute between two check-ins multiplied by 10.

Digital (Relay) Outputs
There are two relay outputs, both SPDTs. The relays are rated for the following:
30 VDC @ 2 Amps
125 VAC @ 0.5 Amps
Be sure to use a flyback diode as needed for inductive loads such as solenoids.

Status LEDs
The Wireless I/O Mini node has a green status LED which blinks indicating the module is running. The status LED also indicates the signal strength between it and its module pair. In addition, there are TX/RX LEDs to indicate radio messages to/from the module.
The status LED will blink once a second if it is not connected to another module. If the node is connected to its paired module, it will blink a link quality code every 3 seconds.
3 Blinks = Strong Signal
2 Blinks = Good Signal
1 Blink = Weak Signal
Each relay output also has a green LED which turns on while the relay is energized.

Modes of Operation

The Wireless I/O Module Mini can be run in two software-settable “system modes”: Node, and Point-to-Point. The ToolKit has a Radio Mode dropdown that can be set to either Node or Gateway. For the WIOM Minis to operate in Node mode, all WIOM Minis on the network must be set to Node and they will communicate with a SignalFire Gateway. For Point-toPoint, set one WIOM Mini to Gateway and one WIOM Mini to Node, on a network that has no other devices.

Node Mode
In Node mode, the WIOM Mini will send its analog and digital inputs/outputs to the Gateway. All IO and then be read/set from a PLC via Modbus.

Node Mode. The Gateway reads all inputs from all nodes and can control any output of any node as commanded by a PLC
Point-to-Point Mode
In Point-to-Point mode, a WIOM Mini that is set to Gateway mode will mirror its digital inputs to the outputs of a Module set to Node, and vice-versa. Point-to-Point mode is only valid for a pair of WIOM Mini modules. For example, if Digital Input 1 on the Gatewayis shorted to GND (logic 1), Digital Output 1 on the Node is energized, and vice versa. Because the WIOM Mini A does not have an analog output, the analog input is not used.
Point-to-Point Model. Inputs from one module are mirrored as outputs on the other

When set to Point-to-Point mode, the WIOM Minis will not be viewable through a SignalFire Gateway as they will be on their own network. The module that is set to Gateway will be locked to Slave ID 1.
WIOM-Mini to WIOM Mode
A WIOM Mini and a regular WIOM can also operate in Point-to-Point mode with each other. In this configuration, the WIOM will mirror the WIOM Mini A’s analog input to its analog output 1. The DI’s will be mirrored in both directions. The WIOM must be configured in Gateway mode while the WIOMmini must be in node mode.

Configuration

Using the SignalFire Toolkit
The SignalFire Toolkit application can be downloaded at www.signal- fire.com/customer.
After installation, launch the software and the main toolkit window will open:

Select the COM port associated with the Wireless IO Module Mini and click “Auto-Detect Device on COM Port.” This will open the device configuration window, where all device settings can be configured.

Network Settings
The network is set using the SignalFire Toolkit. To join a SignalFire network in Node mode, all Wireless I/O Module Minis must have the same Radio Network, Radio Network Group, and Corporate ID/Encryption Key as the Gateway. For two Wireless I/O Module Minis to communicate in Point-to-point mode, they must share the same Radio Network, Radio Network Group, and Corporate ID/Encryption but not share those settings with any other SignalFire network.
To use an Encryption Key in lieu of a Corporate ID, check off the “Enable Encryption” box under the Corporate ID. The Corporate ID field will switch over to an Encryption Key field.
The encryption key can be hidden so it cannot be read. This is the most secure option, but if you forget your key, there is no way to recover it – you have to reset the key on every device on its network. To enable this option, select Set Encryption Key Unrecoverable under the Settings menu.

Advanced Settings

Failsafe Operations
In the event of a loss of communication between the node and the gateway, it may be desirable for the outputs to go to a fail state. This is accomplished by setting one or both of the failsafe timers.
Communication Failsafe Timer – If the node loses its wireless communications link to the gateway for greater than this time, any failsafe enabled relay will be put into a non-energized state. The relay will remain in this “safe” state until a Modbus command is sent from the Modbus master through the Gateway to energize the coil.
Message Failsafe Timer – This is similar to the previous timer, but this indicates the time since a valid Modbus coil writes message has been sent from the Modbus master through the SignalFire Gateway. If used, this timeout must be set higher than the Modbus coil write frequency of the Modbus master device. This option is available for both Point-to-Point and Node modes.
Analog Scaling (Node Mode only)
Analog scaling can be used to scale an analog input to engineering units. For example, for a 01000psi sensor set the scale low to 0 and scale high to 1000. The scaled value will now be displayed in the Toolkit and reported to the gateway as a floating-point number.
Digital Input Debounce
In cases where it is desired to accurately totalize digital input counts, it may be necessary to enable the digital input debounce timer. The debounce timer is useful when dealing with dry contacts that may otherwise produce an extra count when they close. To enable the digital debounce select Digital Input Debounce from the Settings pull-down menu. A typical value for a dry contact would be 100mS. Any extra counts due to contact bounce within the debounce time setting will be ignored.

Modbus Register Map

Register
Number| Register
Address| Description| Function
Code| Register
Type
---|---|---|---|---
Coils (Oxxxx)
Write-only
102| 101| Relay1 Coil| 01, 05| Read/Write
103| 102| Relay2 Coil| 01, 05| Read/Write
112| 111| Counter Reset Coil| 05| Write Only
113| 112| Counter2 Reset Coil| 05| Write Only
Holding Registers (4xxxx)
40122| 121 Relay Pulse (0 = Off, 1 – 65,535 = Pulse Time (sec))| 06| Write Only
40123| 122 Relay2 Pulse| 06| Write Only
41101| 1100 All: Voltage Reading (Unsigned int, mV)| 03, 04| Read Only
41102| 1101 D11: State (Unsigned int 1 = Closed or 0 = Open)| 03, 04| Read Only
41103| 1102 DI2: State| 03, 04| Read Only
41104| 1103 Relay #1 State (Unsigned int 1 = ON or 0 = OFF)| 03, 04| Read Only
41105| 1104 Relay #2 State| 03, 04| Read Only
41106| 1105 i All: Scaled Reading (Float High Word)| 03, 04| Read Only
41107| 1106 All: Scaled Reading (Float Low, Word)| 03, 04| Read Only
41108| 1107 D11: Total Counts (Unsigned int, High Word)| 03, 04| Read Only
41109| 1108 D11: Total Counts (Unsigned int, Low Word)| 03, 04| Read Only
41110| 1109 DI2: Total Counts (Uni. ned int Hi. h Word)| 03, 04| Read Only
41111| 1110 DI2: Total Counts (Uni. ned int Low Word)| 03, 04| Read Only
41112| 1111 DI1: Average Frequency (Hz x 10)| 03, 04| Read Only
41113| 1112 DI1: Instantaneous Frequency (Hz x 10)| 03, 04| Read Only
41114| 1113 D11: Counts per minute (x 10)| 03, 04| Read Only
41115 1114 DI2: Average Frequency (Hz x 10)| 03, 04| Read Only
41116 1115 DI2: Instantaneous Frequency (Hz x 10)| 03, 04| Read Only
41117| 1116 DI1: Counts per minute (x 10)| 03, 04| Read Only
49988| 9987 or 65524 Major revision number for the mainboard| 03, 04| Read Only
49989| 9988 or 65525 Minor revision number for the mainboard| 03, 04| Read Only
49990| 9989 or 65526 Major revision number for the radio| 03, 04| Read Only
49991| 9990 or 65527 Minor revision number for the radio| 03, 04| Read Only
49992| 9991 or 65528 High 16 bits of SFTS node address| 03, 04| Read Only
49993| 9992 or 65529| Low 16 bits of SFTS node address (the radio ID)| 03, 04| Read Only
49994| 9993 or 65530| I Slave ID readback| 03, 04| Read Only
49995 9994 or 65531 Received signal strength of the last packet from the slave| 03, 04| Read Only
49996 9995 or 65532 Battery voltage of the Modbus client, in millivolts| 03, 04| Read Only
49997 9996 or 65533 Minutes until this slave will time out (TTL) unless new data is received| 03, 04| Read Only
49998 9997 or 65534 Number of registers cached for this slave device| 03, 04| Read Only
49999 9998 or 65535 Remote device type. 63 for WIOM-Mini| 03, 04| Read Only

Technical Support and Contact Information
SignalFire Telemetry
140 Locke Dr, Suite B
Marlborough, MA, 01752
978-212-2868
support@signal-fire.com
Revision History

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