Compulab IOT-DIN-IMX8PLUS I O Expansion Modules User Guide
- June 1, 2024
- Compulab
Table of Contents
Compulab IOT-DIN-IMX8PLUS I O Expansion Modules
Product Information
Specifications
| Parameter | Description | Minimum | Maximum | Unit |
|---|---|---|---|---|
| VDCIN | External power supply voltage, inputs | -0.3 | 30 | V |
| VI | Input steady state voltage | -0.3 | 30 | V |
| VDCOUT | External power supply voltage, outputs | -0.3 | 41 | V |
| IR | Reverse output current (per channel) | – | -5 | A |
Product Usage Instructions
-
Description
The IFM-DI8O8 is a digital I/O expansion module designed for 24V PLC applications. It features an isolated block of eight digital inputs and a block of eight digital outputs with ESD and transient protections. External isolated power supplies are required for each block. -
Features
Digital input features: List of digital input features.
Digital output features: List of digital output features.
Important Note: I/O expansion modules must be connected to the IOT-DIN- IMX8PLUS gateway to function. -
Installation
Provide detailed installation instructions here. -
Troubleshooting
List common issues and solutions for troubleshooting.
Frequently Asked Questions (FAQ)
Q: Can the IFM-DI8O8 module be used independently without connecting to the
IOT-DIN-IMX8PLUS gateway?
A: No, the I/O expansion modules cannot be used stand-alone and must be
connected to the IOT-DIN-IMX8PLUS gateway for proper operation.
IOT-DIN-IMX8PLUS I/O EXPANSION MODULES
Reference Guide
© May 2024 Compulab
No warranty of accuracy is given concerning the contents of the information
contained in this publication. To the extent permitted by law, no liability
(including a liability to any person because of negligence) will be accepted
by Compulab, its subsidiaries or employees for any direct or indirect loss or
damage caused by omissions from or inaccuracies in this document.
Compulab reserves the right to change details in this publication without
notice.
Product and company names herein may be the trademarks of their respective
owners.
Compulab
17 Ha Yetzira St., Yokneam Illit 2069208, Israel
Tel: +972 (4) 8290100
https://www.compulab.com
Table 1 Document Revision Notes
| Date | Description |
|---|---|
| May 2024 | · First release |
Please check for a newer revision of this manual at the Compulab website
https://www.compulab.com . Compare the revision notes of the updated manual
from the website with those of the printed or electronic version you have.
INTRODUCTION
-
About This Document
This document is part of a set of documents providing information necessary to operate and program Compulab IOT-DIN-IMX8PLUS I/O Modules. -
IOT-DIN-IMX8PLUS Part Number
To decode the IOT-DIN-IMX8PLUS I/O Modules part number please refer to the ‘Ordering’ section of the IOT-DIN-IMX8PLUS product page: https://www.compulab.com/products/iot-gateways/iot-din-imx8plus-industrial- iot-gateway/#ordering. -
Related Documents
For additional information not covered in this manual, please refer to the documents listed in Table 2.
Table 2 Related Documents
| Document | Location |
|---|---|
| IOT-DIN-IMX8PLUS resources | [https://www.compulab.com/products/iot-gateways |
/iot-din-imx8plus-](https://www.compulab.com/products/iot-gateways/iot-din- imx8plus-industrial-iot-gateway/#devres) industrial-iot- gateway/#devres
IFM-DI8O8 DIGITAL I/O MODULE
Description
IFM-DI8O8 is a digital I/O expansion module with an isolated block of eight
digital inputs and a block of eight digital outputs. The module is designed
for 24V PLC applications, and contains ESD and transient protections. The user
must provide isolated external power supplies for each block.
- Digital input features:
- 8x low side (sink) inputs with common ground
- ESD protection according to IEC 61000-4-2
- Voltage surge protection according to IEC 61000-4-5
- Transient immunity according to IEC 61000-4-4
- Wide input DC voltage range
- Input current limiting
- Digital output features:
- 8x high side (relay) outputs
- Conforms to IEC 61131-2
- ESD protection according to IEC 61000-4-2
- Output current limiting
- Under voltage shutdown
- Shorted load protection
NOTE: I/O expansion modules cannot be used stand-alone without a connection to the IOT- DIN-IMX8PLUS gateway.
Specifications
Table 3 IFM-DI8O8 Absolute Maximum Ratings
| Parameter | Description | Minimum | Maximum | Unit |
|---|---|---|---|---|
| VDCIN | External power supply voltage, inputs | -0.3 | 30 | V |
| VI | Input steady state voltage | -0.3 | 30 | V |
| VDCOUT | External power supply voltage, outputs | -0.3 | 41 | V |
| IR | Reverse output current (per channel) | – | -5 | A |
NOTE: Stresses beyond the maximum ratings may cause permanent damage to the device
Table 4 IFM-DI8O8 Electrical, Mechanical and Environmental Specifications
Mechanical Specifications
Housing type| DIN rail housing (for DIN rail version EN 50022)
Housing material| ABS/PC high endurance
Dimensions| 110 x 30 x 95 mm
Weight| 110 gram
Terminal blocks connectors| 0.2-1.5mm2;
16-26 AWG;
Environmental and Reliability
MTTF| > 200,000 hours
Operation temperature| -30° to 70° C
Storage temperature| -40° to 85° C
Relative humidity| 10% to 90% (operation)
05% to 95% (storage)
Compliance
Regulatory| FCC, CE, UKCA
EMC| EN 55032/5, EN 61000-6-2, EN 61000-6-3
Safety| EN/UL/IEC 62368-1
Table 5 IFM-DI8O8 Digital Input Characteristics
| Parameter | Description | Min | Typ. | Max | Unit |
|---|---|---|---|---|---|
| VDC | External power supply voltage | 10 | 24 | 30 | V |
| ILIM | Input current limit | 2.1 | 3 | 3.7 | mA |
| VLOW | Maximum off state voltage | 1.5 | V | ||
| VTH | Activation threshold | 3.4 | 5 | V | |
| VCL | Clamping voltage | 31 | 38 | V |
Table 6 IFM-DI8O8 Digital Output Characteristics
| Parameter | Description | Min | Typ. | Max | Unit |
|---|---|---|---|---|---|
| VDC | External power supply voltage | 10.5 | 24 | 36 | V |
| VOUT(OFF) | OFF state output voltage | 1 | V | ||
| td(OFF) | Turn OFF delay | 12 | µs | ||
| td(ON) | Turn ON delay | 6 | µs | ||
| IOUT | Output current per channel | 1 | A | ||
| ILIM | DC short-circuit current | 1.1 | 2.6 | A |
Connectors
Table 7 IFM-DI8O8 connectors
Connector| Description| 
---|---|---
A| Digital input block
B| Digital output block
AUX| Power input
Connector| Connector Type
A, B| 10-pin dual-raw plug with push-in spring connections
Locking: screw flange
Pitch: 3.5 mm
Wire cross-section: AWG 16 – AWG 26
AUX| 4-pin plug with screw terminal connections Locking: screw flange
Pitch: 3.5 mm
Wire cross-section: AWG 16 – AWG 26
Table 8 IFM-DI8O8 connector A pin-out
| Pin | Signal Name | Description | Isolation Power Domain |
|---|---|---|---|
| 1 | IN_0 | Digital Input 0 | IN |
| 2 | IN_1 | Digital Input 1 | IN |
| 3 | IN_2 | Digital Input 2 | IN |
| 4 | IN_3 | Digital Input 3 | IN |
| 5 | COM_IN | Digital inputs reference (0V) | IN |
| 6 | COM_IN | Digital inputs reference (0V) | IN |
| 7 | IN_4 | Digital Input 4 | IN |
| 8 | IN_5 | Digital Input 5 | IN |
| 9 | IN_6 | Digital Input 6 | IN |
| 10 | IN_7 | Digital Input 7 | IN |
Table 9 IFM-DI8O8 connector B pin-out
| Pin | Signal Name | Description | Isolation Power Domain |
|---|---|---|---|
| 1 | OUT_0 | Digital Output 0 | OUT |
| 2 | OUT_1 | Digital Output 1 | OUT |
| 3 | OUT_2 | Digital Output 2 | OUT |
| 4 | OUT_3 | Digital Output 3 | OUT |
| 5 | COM_OUT | Digital outputs reference (0V) | OUT |
| 6 | COM_OUT | Digital outputs reference (0V) | OUT |
| 7 | OUT_4 | Digital Output 4 | OUT |
| 8 | OUT_5 | Digital Output 5 | OUT |
| 9 | OUT_6 | Digital Output 6 | OUT |
| 10 | OUT_7 | Digital Output 7 | OUT |
Table 10 IFM-DI8O8 AUX connector pin-out
| Pin | Signal Name | Description | Isolation Power Domain |
|---|---|---|---|
| 1 | COM_IN | Digital inputs reference (0V) | IN |
| 2 | VDC_IN | Input block voltage supply | IN |
| 3 | COM_OUT | Digital outputs reference (0V) | OUT |
| 4 | VDC_OUT | Output block voltage supply | OUT |
Application Information
Figure 1: Digital Inputs 
Figure 2: Digital Outputs 
IFM-RS232 4-PORT RS232 MODULE
Description
IFM-RS232 is an asynchronous communication I/O expansion module that contains
four 2-wire RS-232 ports implemented with MAX3221 RS-232 line
driver/receivers. The ports are separated into blocks; each block is isolated
from the other and from the main system. Each port inlcudes a receive /
transmit pair and a reference GND.
IFM-RS232 receives power from the main gateway and does not require external
power.
Key features:
- ESD protection +/-15kV
- Meets TIA/EIA-232-F standards
- Programmable baud rates up 250kbps
NOTE: I/O expansion modules cannot be used stand-alone without a connection to the IOT- DIN-IMX8PLUS gateway
Specifications
Table 11 IFM-RS232 Absolute Maximum Ratings
| Parameter | Description | Minimum | Maximum | Unit |
|---|---|---|---|---|
| VI(RECEIVER) | Input voltage on receiver | -25 | 25 | V |
| VO(DRIVER) | Output voltage from driver | -13.2 | 13.2 | V |
NOTE: Stresses beyond the maximum ratings may lead to permanent damage to the device.
Table 12 IFM-RS232 Electrical, Mechanical and Environmental Specifications
Mechanical Specifications
Housing type| DIN rail housing (for DIN rail version EN 50022)
Housing material| ABS/PC high endurance
Dimensions| 110 x 30 x 95 mm
Weight| 110 gram
Terminal blocks connectors| 0.2-1.5mm2;
16-26 AWG;
Environmental and Reliability
MTTF| > 200,000 hours
Operation temperature| -30° to 70° C
Storage temperature| -40° to 85° C
Relative humidity| 10% to 90% (operation)
05% to 95% (storage)
Compliance
Regulatory| FCC, CE, UKCA
EMC| EN 55032/5, EN 61000-6-2, EN 61000-6-3
Safety| EN/UL/IEC 62368-1
Connectors
Table 13 IFM-RS232 connectors
Connector| Description| 
---|---|---
A| RS232 Ports 0 and 1
B| RS232 Ports 2 and 3
Connector| Connector Type
A, B| 10-pin dual-raw plug with push-in spring connections Locking: screw
flange
Pitch: 3.5 mm
Wire cross-section: AWG 16 – AWG 26
Table 14 IFM-RS232 connector A pin-out
| Pin | Signal Name | Description | Isolation Power Domain |
|---|---|---|---|
| 1 | PORT0_RX | RS232 Port 0 Rx input | A |
| 2 | PORT0_TX | RS232 Port 0 Tx output | A |
| 3 | COM_A | Ports 0 and 1 reference (0V) | A |
| 4 | COM_A | Ports 0 and 1 reference (0V) | A |
| 5 | N.C. | Not connected | A |
| 6 | N.C. | Not connected | A |
| 7 | COM_A | Ports 0 and 1 reference (0V) | A |
| 8 | COM_A | Ports 0 and 1 reference (0V) | A |
| 9 | PORT1_RX | RS232 Port 1 Rx input | A |
| 10 | PORT1_TX | RS232 Port 1 Tx output | A |
Table 15 IFM-RS232 connector B pin-out
| Pin | Signal Name | Description | Isolation Power Domain |
|---|---|---|---|
| 1 | PORT2_RX | RS232 Port 2 Rx input | B |
| 2 | PORT2_TX | RS232 Port 2 Tx output | B |
| 3 | COM_B | Ports 2 and 3 reference (0V) | B |
| 4 | COM_B | Ports 2 and 3 reference (0V) | B |
| 5 | N.C. | Not connected | B |
| 6 | N.C. | Not connected | B |
| 7 | COM_B | Ports 2 and 3 reference (0V) | B |
| 8 | COM_B | Ports 2 and 3 reference (0V) | B |
| 9 | PORT3_RX | RS232 Port 3 Rx input | B |
| 10 | PORT3_TX | RS232 Port 3 Tx output | B |
IFM-RS485 4-PORT RS485 MODULE
Description
The IFM-RS485 is a I/O expansion module that contains four half-duplex RS485
compatible ports implemented with MAX13488E transceivers. The ports are
separated into blocks; each block is isolated from the other and from the main
system. Each port contains a positive / negative pair, a reference GND and
optional 120Ω termination selectable via jumper. Please refer to Application
Information for details.
IFM-RS485 receives power from the main gateway and does not require external
power.
Key features:
- ESD protection +/-15kV
- Meets TIA/EIA-485 standards
- Programmable data rates up to 4Mbps
NOTE: I/O expansion modules cannot be used stand-alone without a connection to the IOT- DIN-IMX8PLUS gateway
Specifications
Table 16 IFM-RS485 Absolute Maximum Ratings
| Parameter | Description | Minimum | Maximum | Unit |
|---|---|---|---|---|
| VSIG | D+/D- Voltage | -8 | 13 | V |
NOTE: Stresses beyond the maximum ratings may lead to permanent damage to the device
Table 17 IFM-RS485 Electrical, Mechanical and Environmental Specifications
Mechanical Specifications
Housing type| DIN rail housing (for DIN rail version EN 50022)
Housing material| ABS/PC high endurance
Dimensions| 110 x 30 x 95 mm
Weight| 110 gram
Terminal blocks connectors| 0.2-1.5mm2;
16-26 AWG;
Environmental and Reliability
MTTF| > 200,000 hours
Operation temperature| -30° to 70° C
Storage temperature| -40° to 85° C
Relative humidity| 10% to 90% (operation)
05% to 95% (storage)
Compliance
Regulatory| FCC, CE, UKCA
EMC| EN 55032/5, EN 61000-6-2, EN 61000-6-3
Safety| EN/UL/IEC 62368-1
Connectors
Table 18 IFM-RS485 connectors
Connector| Description| 
---|---|---
A| RS485 Ports 0 and 1
B| RS485 Ports 2 and 3
Connector| Connector Type
A, B| 10-pin dual-raw plug with push-in spring connections Locking: screw
flange
Pitch: 3.5 mm
Wire cross-section: AWG 16 – AWG 26
Table 19 IFM-RS485 connector A pin-out
| Pin | Signal Name | Description | Isolation Power Domain |
|---|---|---|---|
| 1 | PORT0_NEG | RS485 Port 0 signal D- | A |
| 2 | PORT0_POS | RS485 Port 0 signal D+ | A |
| 3 | PORT0_TRM_A | Port 0 termination A (connect to B for 120Ω termination) | A |
| 4 | PORT0_TRM_B | Port 0 termination B (connect to A for 120Ω termination) | A |
| 5 | COM_A | Ports 0 and 1 reference (0V) | A |
| 6 | COM_A | Ports 0 and 1 reference (0V) | A |
| 7 | PORT1_TRM_A | Port 1 termination A (connect to B for 120Ω termination) | A |
| 8 | PORT1_TRM_B | Port 1 termination B (connect to A for 120Ω termination) | A |
| 9 | PORT1_NEG | RS485 Port 1 signal D- | A |
| 10 | PORT1_POS | RS485 Port 1 signal D+ | A |
Table 20 IFM-RS485 connector B pin-out
| Pin | Signal Name | Description | Isolation Power Domain |
|---|---|---|---|
| 1 | PORT2_NEG | RS485 Port 2 signal D- | B |
| 2 | PORT2_POS | RS485 Port 2 signal D+ | B |
| 3 | PORT2_TRM_A | Port 2 termination A (connect to B for 120Ω termination) | B |
| 4 | PORT2_TRM_B | Port 2 termination B (connect to A for 120Ω termination) | B |
| 5 | COM_B | Ports 2 and 3 reference (0V) | B |
| 6 | COM_B | Ports 2 and 3 reference (0V) | B |
| 7 | PORT3_TRM_A | Port 3 termination A (connect to B for 120Ω termination) | B |
| 8 | PORT3_TRM_B | Port 3 termination B (connect to A for 120Ω termination) | B |
| 9 | PORT3_NEG | RS485 Port 3 signal D- | B |
| 10 | PORT3_POS | RS485 Port 3 signal D+ | B |
Application Information
Each RS485 ports in the IFM-RS485 module comes with an optional 120Ω line
termination. To enable the termination, place a wire between TRM_A and TRM_B
pins for the respective port. Leave these pins unconnected for operation
without termination.
For example, when using channel RS485 PORT0, place a jumper between
PORT0_TRM_A (Pin 3) and PORT0_TRM_B (Pin 4).
Figure 3: RS485 PORT0 with Terminating Resistor
Figure 4: RS485 PORT0 without Terminating Resistor 
IFM-ADC8 ANALOG INPUT MODULE
Description
IFM-ADC8 is an I/O expansion module with eight single-ended analog input
channels with shared reference COM, divided into two blocks of 4. Inputs
operate between 0-10V or 4-20mA ranges for use with industiral sensors. Each
block can be set into current or voltage input mode via jumper. For details
please refer to Application Information.
Key features:
- 8x single-ended analog inputs separated into two blocks of 4 channels
- Selectable operating modes 0-10V or 4-20mA
- Galvanic isolation from main unit
- Programmable sample rate 128SPS to 3.3kSPS
- 11-bit (2048 units) low noise resolution
- Programmable comparator and dedicated interrupt for critical signals
NOTE: I/O expansion modules cannot be used stand-alone without a connection to the IOT- DIN-IMX8PLUS gateway
Specifications
Table 21 IFM-ADC8 Absolute Maximum Ratings
| Parameter | Description | Minimum | Maximum | Unit |
|---|---|---|---|---|
| VIN | Voltage on input channels | -0.3 | 18 | V |
| IIN | Current on input channels | 0 | 30 | mA |
NOTE: Stresses beyond the maximum ratings may lead to permanent damage to the device
Table 22 Analog Input Characteristics
| Parameter | Description | Min | Typ. | Max | Unit |
|---|---|---|---|---|---|
| VIN | Analog input (voltage) | 0 | – | 10 | V |
| IIN | Analog input (current) | 4 | – | 20 | mA |
| RIN(I) | Input impedance (current mode) | 500 | Ω | ||
| RIN(V) | Input impedance (voltage mode) | 5k | Ω |
Table 23 IFM-ADC8 Electrical, Mechanical and Environmental
Mechanical Specifications
Housing type| DIN rail housing (for DIN rail version EN 50022)
Housing material| ABS/PC high endurance
Dimensions| 110 x 30 x 95 mm
Weight| 110 gram
Terminal blocks connectors| 0.2-1.5mm2;
16-26 AWG;
Environmental and Reliability
MTTF| > 200,000 hours
Operation temperature| -30° to 70° C
Storage temperature| -40° to 85° C
Relative humidity| 10% to 90% (operation)
05% to 95% (storage)
Compliance
Regulatory| FCC, CE, UKCA
EMC| EN 55032/5, EN 61000-6-2, EN 61000-6-3
Safety| EN/UL/IEC 62368-1
Connectors
Table 24 IFM-ADC8 connectors
Connector| Description| 
---|---|---
A| Analog Inputs 0 – 3
B| Analog Inputs 4 – 7
Connector| Connector Type
A, B
| 10-pin dual-raw plug with push-in spring connections Locking: screw flange
Pitch: 3.5 mm
Wire cross-section: AWG 16 – AWG 26
Table 25 IFM-RS485 connector A pin-out
| Pin | Signal Name | Description | Isolation Power Domain |
|---|---|---|---|
| 1 | COM | Signal Reference (0V) | ANALOG |
| 2 | AIN_0 | Analog input channel 0 | ANALOG |
| 3 | COM | Signal Reference (0V) | ANALOG |
| 4 | AIN_1 | Analog input channel 1 | ANALOG |
| 5 | COM | Signal Reference (0V) | ANALOG |
| 6 | AIN_2 | Analog input channel 2 | ANALOG |
| 7 | COM | Signal Reference (0V) | ANALOG |
| 8 | AIN_3 | Analog input channel 3 | ANALOG |
| 9 | COM | Signal Reference (0V) | ANALOG |
| 10 | MODE_A | Channel 0 – 3 mode select (connect to COM for 4 – 20mA operation; | |
| Leave open for 0 – 10V) | ANALOG |
Table 26 IFM-RS485 connector B pin-out
| Pin | Signal Name | Description | Isolation Power Domain |
|---|---|---|---|
| 1 | COM | Signal Reference (0V) | ANALOG |
| 2 | AIN_4 | Analog input channel 4 | ANALOG |
| 3 | COM | Signal Reference (0V) | ANALOG |
| 4 | AIN_5 | Analog input channel 5 | ANALOG |
| 5 | COM | Signal Reference (0V) | ANALOG |
| 6 | AIN_6 | Analog input channel 6 | ANALOG |
| 7 | COM | Signal Reference (0V) | ANALOG |
| 8 | AIN_7 | Analog input channel 7 | ANALOG |
| 9 | COM | Signal Reference (0V) | ANALOG |
| 10 | MODE_B | Channel 4 – 7 mode select (connect to COM for 4 – 20mA operation; | |
| Leave open for 0 – 10V) | ANALOG |
Application Information
Each block of four channels can be used in 0 – 10V (Voltage Mode) or 4 – 20mA
(Current Mode). In each terminal block, to set Current Mode, place a plain
wire between COM (pin 9) and MODE (pin 10). For Voltage Mode, leave MODE pin
unconnected.
For example, to set AIN_0 – AIN_3 to Current Mode, loop a plain wire between
COM (Pin 9) and MODE_A (Pin 10).
Figure 5 Analog Input used in Voltage Mode
Figure 6 Analog Input used in Current Mode 
IFM-WB WIFI / BLUETOOTH MODULE
Description
IFM-WB is an expansion module that adds Wi-Fi and Bluetooth capabilities to
the system. Implemented using Intel Wi-Fi 6E AX210 connectivity module. IFM-WB
features two RP-SMA connectors for external antennas.
Key features:
- Supports Wi-Fi 6E including new 6GHz band
- Bluetooth® 5.3
NOTE: I/O expansion modules cannot be used stand-alone without a connection to the IOT- DIN-IMX8PLUS gateway
Specifications
For wireless specifications please refer to the Intel Wi-Fi 6E AX210
datasheet.
Table 27 Electrical, Mechanical and Environmental
Mechanical Specifications
Housing type| DIN rail housing (for DIN rail version EN 50022)
Housing material| ABS/PC high endurance
Dimensions| 110 x 30 x 95 mm
Weight| 110 gram
Environmental and Reliability
MTTF| > 200,000 hours
Operation temperature| -30° to 70° C
Storage temperature| -40° to 85° C
Relative humidity| 10% to 90% (operation)
05% to 95% (storage)
Compliance
Regulatory| FCC, CE, UKCA
EMC| EN 55032/5, EN 61000-6-2, EN 61000-6-3
Safety| EN/UL/IEC 62368-1
Connectors
Table 28 IFM-ADC8 connectors
| Connector | Description | **** |
|---|---|---|
| A | Wi-Fi (Chain A) + Bluetooth | |
| B | Wi-Fi (Chain B) | |
| Connector | Connector Type | |
| A, B | RP-SMA |
IOT-DIN-IMX8PLUS I/O Modules Reference Guide
Documents / Resources
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Compulab IOT-DIN-IMX8PLUS I O Expansion
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