How do I use Modbus Poll with my Brainboxes Remote IO Device?
Brainboxes Remote IO devices can be communicated with from any off the shelf Modbus TCP software package, PLC, HMI etc. What follows is an example of using Brainboxes Remote IO devices with Modbus Poll, a popular piece of windows software often used to test modbus functionality from a PC. Alternatively customers can also use brainboxes product Remote IO Console.
Configure Brainboxes ED device to use the ModbusTCP Protocol.
Install and open Modbus Poll
Configure the connection to the brainboxes remote io device, by clicking Connection>Connect
Select Modbus TCP/IP under connection
Enter the devices IP address, leave other setting at their default
Set up the Read/Write definitions, in Modbus Poll Click Setup>Read/Write definitions
Always set the Slave ID to 255. The Address and quantity can be found in the Modbus Remote IO manual for your particular device. For example the ED-588 has 8 holding registers for Digital Inputs addressed from 0x0000 - 7 (the total quantity is 8 [0-7] ). Leave the other settings at their default values.
Modbus Poll should now work as expected.
This screen show Modbus Poll reading the status of the 8 Inputs of the ED-588