Concept IEC XMIT

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Thread Starter

Derek Chan

Anybody out there famaliar with the XMIT using Momentum CPU and the JNN RS485 Adapter in 2 wire RS485 ?

I have tried a sample program which works, however when I start to load in the application the XMIT starts to fail. I have come to the conclusion after some investigation that with scan time greater than 20 mSec, the XMIT will
fail !

Anybody can share their experience with me ?

Concept 2.2SR2
CPU 171CCC76010 (M1IEC222 flash) and 172JNN21032 operating as Modbus Master using 2 wire RS485.

Have also had a go at the XXMIT, but this works intermittently.

Derek
 
I have used the XMIT and the XXMIT a couple of times on a Quantum talking to a LED display and a GE 90/30 plc and have had no problems, and
actually like the XXMIT much better. What are you communicating to and what are some of your paramaters like baud,command word,and timeouts?
 
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Dave Malette

The Concept XMIT block is definately broken in Concept 2.2 . It was a problem in one of our installations as well. Schneider is aware of it
and they may have a fix already but we havent been able to confirm this yet.

Dave
 
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