We're attempting to hook up a Kohler Generator to our SCADA system(WonderWare).

It has an RS232 communication card installed, but it has never been used.

The card has been configured per the instructions and is powered up.

The existing system uses a Modbus driver that resides on our Scada server and polls the system in a preconfigured manner through a fiber optic network. Within the network we have several RS232 interface modules.

All topics have been defined in the ModBus driver and we have tested the RS232 interface module on another end device and it works fine, but when we connect it to the Generator we get no information.

We have a need at this time to use our laptop as the polling device for troubleshooting purposes.

Can anyone assist me in getting this to work?

 

What software are you using to poll the rs 232 card with? I have used Omniserver software to pull data into wonderware tags in the past.

Tom

 

Possibly a dumb question, does the generator support modbus protocol?

 

The company I work for has a shareware Modbus Test program that you can use to test the functionality of your device. This program will tell you if you've messed up on something basic, and help you debug the modbus communications by showing you the raw bytes sent and recieved.

You can download it for free at:
http://www.rawiq.com/store/index.ph...147a423e342dfef154b2f107e7&option=com_phpshop

Hope this helps!