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Author Topic: modbus rtu negative acknowledge-7  (Read 1745 times)

mehmet_ali

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modbus rtu negative acknowledge-7
« on: March 28, 2016, 10:34:16 AM »
hi
I 'm not good is English

I'm Modbus RTU communication negative acknowledge -7 gives warning
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Archie

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Re: modbus rtu negative acknowledge-7
« Reply #1 on: March 28, 2016, 10:45:19 AM »
This is a code returned by your device. See exception code 07 on this page:

http://www.simplymodbus.ca/exceptions.htm
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