ICP DAS USA MDC-211-WF, Руководство пользователя

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ICP DAS, MDC-211-WF user manual , v1.1 Page 22
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and Modbus RTU devices, please refer to the “Status" item:
(1) If the "Status" item displays GOOD , means the command is connected and reading data
currently.
(2) If the "Status" item displays DISABLED ,
means
the command was disabled by the user.
(3) If the "Status" item displays TIMEOUT , means the command was timeout and the device
did not respond, please check the module wiring, and the following Modbus RTU device
settings those need to be consistent with the settings in MDC-211-WF.
- Baud Rate
- Data Format (Data Bit / Parity / Stop Bit)
- Station number (ID) of the Modbus RTU Slave device
(4) If the "Status" item displays ILLEGAL DATA FUNCTION , represents Modbus Exception
code 01, which means the command connection was established, but the Modbus RTU
device of the communication target does not support the function code, please recheck
the Modbus command parameters.
(5) If the "Status" item displays ILLEGAL DATA ADDRESS , represents Modbus Exception
Code 02, which means the command connection was established, but the Modbus RTU
device of the communication target does not support the Starting Register address, or
exceeds the legal Register range (Starting + Length) , please recheck the Modbus
command parameters.
(6) If the "Status" item displays ILLEGAL DATA VALUE , represents Modbus Exception Code
03, means the command connection was established, but the Quantity of the command
access Register is not valid, please recheck the Modbus command parameters.
(7) If the "Status" item displays CRC ERROR , means the Modbus CRC code error and the
communication may be disturbed abnormally.