How to Connect an HMI & PLC Combo with a Remote I/O via Modbus
This tutorial shows you how to connect an HMI+PLC combo with a Remote I/O using Modbus communication to read the analog input from a J-Thermocouple and get the digital output using an LED light.
Software Required
Hardware Required
- HMC4070A-M – Other HMC2000/HMC4000 models can also be used
- iR-ETN Coupler
- AM06-V1 Remote I/O
- DQ08-R Remote I/O
- 24 VDC Power Supply (4010-0011)
Network Configuration and Wiring
ETHERNET CONFIGURATION
LAN2: PC to iR-ETN Coupler
LAN1: iR-ETN Coupler to HMC4070A-M
WIRING (POWER)
24V Power Supply to 24V HMC4070A-M
24V HMC4070A-M to 24V iR-ETN Coupler
0V Power Supply to 0V HMC4070A-M
0V HMC4070A-M to 0V iR-ETN Coupler
WIRING (ANALOG INPUT – J THERMOCOUPLE)
TC to CH1 V1+ on AM06-V1
TC to CH1 V1- on AM06-V1
WIRING (DIGITAL OUTPUT – LED LIGHT)
DQ08-R CH0 to LED Light
DQ08-R C0 to LED Light
This wiring diagram can also be applied to any HMC and compatible Remote I/O. The J-Thermocouple and LED light are only used as examples.
Please refer to the How to Read Temperature with a J-Thermocouple using a 0-5V Analog Configuration Tutorial Page to get a more in depth setup for a J-Thermocouple as well as the How to Turn an LED On and Off using Digital Output Tutorial Page to get a more in depth setup for an LED Light.
User Interface
Sample Project
The project shown above was designed for the specific hardware mentioned at the beginning of the tutorial and is intended to provide you guidance when programming your unit. If you are using models other than the ones specified in this sample project, similar steps can be duplicated within your own project.
Download MAPware sample project
Download Easy Remote I/O Sample Project
Resources & Documentation
HMC/MAPware-7000 Resources
MAPware-7000 Getting Started Guide
MAPware-7000 Programming Manual
IEC 61131-3 Programming Guide for MAPware-7000
iR-ETN User Manual
More
See our Support Center for a complete list of Quick Start and Installation Guides