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MODBUS communication with CP524

Created by: naga at: 3/7/2010 11:57 AM (2 Replies)

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3/7/2010 11:57 AM	Rate (0)
naga Posts: 101 Rating: (0)	Dear All, How to add additional bits to already running MODBUS communication to III party DCS(FOXBRO of INVENSYS) using CP524 in a CPU 948 RL redundant system. In the program which block decides MODBUS parameters like starting address, mapping etc. Regards, Vijay
naga Posts: 101 Rating: (0)
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4/23/2010 9:39 AM	Rate (0)
kanak_wang Member Joined: 4/16/2010 Last visit: 11/13/2024 Posts: 6 Rating: (0)	you should modify you plc program.

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5/5/2010 2:14 PM	Rate (0)
Navnag Platinum Expert Joined: 11/21/2007 Last visit: 9/25/2024 Posts: 2325 Rating: (308)	Hello First of all you have to find out if your system is a Modbus Master / Modbus Slave. Following Documents explain the Modbus Master / Slave Drivers for CP-524 : S5 is Master : http://support.automation.siemens.com/WW/view/en/41273 S5 is Slave : http://support.automation.siemens.com/WW/view/en/41299 Unfortunately the documentation is available in German only Hope this helps Cheers Navnag
	There is no such thing as the last bug in a program There are no stubborn bugs, There are only stubborn Debuggers.
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