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Modbus function code 91

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Hello,

I need information about TCP/IP Modbus together with Function code 91 protocol or SEMI E54 communication protocol.
I have already searched on internet but found almost noting.
I need only the read function.
How is the command build-up that is must send to my equipment.
How is build-up the response that I receive back from my equipment.
hopefully you can help me out.

best regards,
Frans
asked Apr 24, 2018 in Modbus and Industrial Automation by enschot New to the Community (0 points)

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1 Answer

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You won't find any 'standard' docs on a function 91, because anything about 64 is 'vendor specific'. Ultimately, the vendor selling the product needs to provide details.
answered Jul 18, 2018 by Coralyn Seasoned Professional (150 points)
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