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Created by: Shamsher at: 5/28/2006 10:24 AM (1 Replies)

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5/28/2006 10:24 AM	Rate (0)
Shamsher Posts: 102 Rating: (3)	Hai All, I am working on a 314C 2DP cpu wih 1 Et 2001si module as DP slave.This 1SI module is connected to three energy meters on MODBUS. The problem is Say the meers are out for 1hr, the PLC stops polling them for data. How to so this behaviour? Regards Shamsher
Shamsher Posts: 102 Rating: (3)
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5/30/2006 11:07 PM	Rate (1)
Late Platinum Expert Joined: 1/7/2006 Last visit: 11/17/2023 Posts: 2705 Rating: (318)	Hi, Which module is it? {there are several} 6ES7138-4DF01-0AB0 or 6ES7138-4DF11-0AB0 There are new functions because the newer module have the possibility to have bigger telegrams between the CPU and the 1SI. Function Blocks, Examples and Manuals for the ET200S Serial Interface: http://support.automation.siemens.com/WW/view/en/21090030 There is also a newer firmware for this module... [:P] See http://support.automation.siemens.com/WW/view/en/21363754for the new firmware and how to load this new firmware. The following behavior has been corrected (affects only ET200S 1SI Modbus 6ES7138-4DF11-0AB0): Extended operation with repeated violation of the acknowledgement delay time can cause communication standstill. [:o] How do you load a firmware update with the serial interface module ET 200S 1SI? http://support.automation.siemens.com/WW/view/en/22158108 I hope that this is enough to help you .... a little bit with your problem.
	I hope that the answer will help, if you have still questions, don't hesitate to ask me. All the best, Late Never say never, think in solutions, not in trouble......
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