MB_ErrorCodes (ENUM)
TYPE MB_ErrorCodes :
- InOut:
Name
Initial
Comment
RESPONSE_SUCCESS
16#0
Everything OK
ILLEGAL_FUNCTION
16#1
Slave does not support the function code
ILLEGAL_DATA_ADDRESS
16#2
Slave does not support this register offset
ILLEGAL_DATA_VALUE
16#3
The value to be written is not valid
SLAVE_DEVICE_FAILURE
16#4
Unrecoverable error while performing the request
ACKNOWLEDGE
16#5
Notification of a Slave that a lengthy operation being started
SLAVE_DEVICE_BUSY
16#6
Notification of a Slave that a lengthy operation is in progress
MEMORY_PARITY_ERROR
16#8
Special error for function code 20, 21
16#A
Special error when using devices behind a gateway (Gateway misconfigured/busy)
GATEWAY_DEVICE_FAILED_TO_RESPOND
16#B
Special error when using devices behind a gateway (Device does not respond)
RESPONSE_TIMEOUT
16#A1
There was no response in time
RESPONSE_CRC_FAIL
16#A2
The checksum of the response is not correct
RESPONSE_WRONG_SLAVE
16#A3
The response is not from the expected Slave
RESPONSE_WRONG_FUNCTIONCODE
16#A4
The response is not the expected function code
TCP_COMMUNICATION_ERROR
16#A5
TCP Port error. Request was not sent
RESPONSE_INVALID_DATA
16#A6
The response contains invalid data
RESPONSE_INVALID_PROTOCOL
16#A7
The response is not modbus protocol
RESPONSE_INVALID_HEADER
16#A8
Any field of Modbus MBAP (Protocoll, Length) header is invalid
INVALID_PARAMETER
16#A9
Any input parameter of the operation is invalid (e.g. data- pointer is not set or FC is not supported by Modbus stack
UNDEFINED
16#FF
The request’s result is undefined or not yet known, e.g. initial state