====== NODE-RED MODBUS-RTU (with CUBLOC MSB) ======

1. ComfilePi ch1(RS485) connect to CUBLOC MSB ch1(RS485)

{{ :comfilepi:nodered:rs485cubloccon.png?nolink |}}

{{ :comfilepi:nodered:msb_rs485.png?nolink |}}

2. CUBLOC MSB basic and ladder logic

<code xbasic>
#include "MSB6XX" 
Opencom 1,115200,3,200,200 
Set Modbus 1,1,100 
Usepin 32,out
Set Ladder On 
Do 
Loop
</code>

{{ :comfilepi:nodered:endcommand.png?nolink |}}

3. NODE-RED source

{{ :comfilepi:nodered:msb_rs4852src2.png?nolink |}}

{{ :comfilepi:nodered:modbusmsb.zip |}}

https://youtu.be/vzvlwFkhLB4

4. This sample code use MODBUS-RTU function 5

[[https://comfilewiki.co.kr/en/doku.php?id=comfilehmi:simplemodbus:modbus_code5:index|MODBUS-RTU Function 5]]

{{ :comfilepi:nodered:msb_rs4852src9.png?nolink |}}

[[comfilepi:nodered:index|Using NODE-RED on the ComfilePi]]