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Old May 3rd, 2013, 10:57 AM   #1
LVShann
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Modbus into Wonderware through Moxa

After racking my brain on this one, I think I'm going to need some help.

I've got a system where I have a Moxa MB3270 Modbus Gateway with 11 Eurotherm 2208e units on one port and two 2208e units with a Fuji frequency drive on the other. I've not got a lot of experience with these components but I've got the ports of the gateway mapped for the correct modbus slave addresses and I've got the DASMBTCP set up as far as I can figure.

My issue is on creating the proper device groups/items or proper configuration from the DA server so that I can link tags to the right references in each device. To specify - I'm having trouble in figuring out how to specify for the correct slave address in addition to the typical 4+(4 register digits) to, say, read data.

Thanks.
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Old May 3rd, 2013, 02:26 PM   #2
danw
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Does Wonderware have a document on-line covering Modbus configuration?
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Old May 3rd, 2013, 07:07 PM   #3
diat150
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first thing I always do before attempting to use a hmi driver to poll is use something like modbus poll to test communications and figure out the order of my data.

http://www.modbustools.com/modbus_poll.asp
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