MB+ Communication Error

M

Thread Starter

MIA

Dear All,

I am doing a small project with Schneider PLC. The below are the details.

Master PLC: CPU 67620
Slave PLC: M340
Radio: GE SD04

Communication Mode: RS 232
Master PLC Node: MOdbus Plus

I am adding to the existing network, where in there are similar RTU are added. I am using MBP_MSTR block for communication.

But when i try to run the block it is giving the error. The error code is as below:
Error- 6206
(Non Existent Slave device register requested and Slave device is down)

But in my slave device i can see the counter for TX/RX are increasing whenever it is polling.

Does any one face similar kind of problem.

Your suggestions are welcome.

Thanks...
 
C

Curt Wuollet

Did you make sure the new addition got a unique address, I've seen that kind of error when two were sharing the same address. And of course it has to match the address you are polling. Anyways, it seems like they aren't agreeing on address.

Regards
cww
 
> Communication Mode: RS 232
> I am adding to the existing network,

You can only connect 1 Master with 1 Slave device.

> Error- 6206
> (Non Existent Slave device register requested and Slave device is down)

> But in my slave device i can see the counter for TX/RX are increasing whenever it is polling.

TX/RX will increase
- whenever the Master sends data

- even if an error response is send

- or a collision occurres from several Slaves responding at the same time

Please figure out what Slave address is configured for your Slave device. If you didn't set anything try address 1.
 
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