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Old April 19th, 2021, 09:08 PM   #1

wiwie is offline
Join Date: Jun 2008
Location: PASURUAN
Posts: 17
Unable to communicate between HMI & PLC KINCO

Can anyone help me getting this communications connection set up between KINCO GL100 and KINCO K508-40AR?

I am using Port 1(RS485) on the KINCO PLC, set in Mosbus Master with port settings
Baud Rate 9600
Stop Bits 1
Parity None
Data Bits 8
Address 1

In the KINCO HMI I am using Com0,RS485
Communication protocol Kinco PLC Series

Baud Rate 9600
Stop Bits 1
Parity None
Data Bits 8
Station 1

I have made a cable up to run from the HMI to PLC as follows

HMI 9 Pin D plug PLC 9 Pin D plug
1 RX- -------------------------------- 3B
6 RX+ -------------------------------- 2A

Using this configuration appear PLC no response on the HMI

Any help would be appreciated
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Old June 11th, 2021, 04:35 PM   #2

jets is offline
Join Date: Feb 2017
Location: Winnipeg, Manitoba
Posts: 30
In the manual they do not show pin 5 ground. I'm pretty sure you need it too.I think both HMI and PLC use pin 5 for ground.

RS485-2 need three wire A, B data and ground.
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