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NI-9871 (and NI-9870) FPGA port read timeout

NI-9871 (and NI-9870) FPGA port read timeout

‎02-15-2023 09:58 AM

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I am communicating with Modbus device through NI-9871 cRIO module. I am looking for read block behaviour - is timeout really in ms? Is there any maximum value for timeout? I have suspicion that read accept only <= 255 or similar, ignoring requests for longer timeouts.

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