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Author Topic: Modbus TCP only reading one address  (Read 1259 times)

Codyg12

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Modbus TCP only reading one address
« on: January 08, 2018, 08:34:43 PM »
I am using Modbus TCP and I am having a small issue that I am not sure how to solve.

I am reading address numbers 16383 and 16384 I can read one or the other but not both at the same time. I can read 16383 but I have to remove 16383 to read 16384 otherwise the valve will come up as zero. I am not sure what to do to solve the problem
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Archie

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Re: Modbus TCP only reading one address
« Reply #1 on: January 08, 2018, 08:47:22 PM »
What are you using? If you haven't used BasicLabel, try adding two of them to the form, then set PLCAddressValue of one to 16383 and the other to 16384. Then post what you get.

Are you sure 16383 is the Modicon style address? That seems like a typical offset value and not the actual address.
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Codyg12

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Re: Modbus TCP only reading one address
« Reply #2 on: January 09, 2018, 04:59:18 PM »
This morning I walked in and it was working fine. I don't know what the problem was yesterday
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