ModbusErrorCode

ModbusErrorCode (ENUM)

TYPE ModbusErrorCode : (NO_ERROR)

Attributes: qualified_only\

InOut:

Name	Initial	Comment
NO_ERROR	16#0	The communication was successful
EC_ILLEGAL_FUNCTION	16#1	Exception code - DEVICE: The function code received in the query is not an allowable action for the server (or slave). This may be because the function code is only applicable to newer devices and was not implemented in the selected unit. It could also indicate that the server (or slave) is in the wrong state to process a request of this type, for example because it is unconfigured and is being asked to return register values.
EC_ILLEGAL_DATA_ADDRESS	16#2	Exception code - DEVICE: The data address received in the query is not an allowable address for the server (or slave). More specifically, the combination of reference number and transfer length is invalid.
EC_ILLEGAL_DATA_VALUE	16#3	Exception code - DEVICE: A value contained in the query data field is not an allowable value for the server (or slave). This indicates a fault in the structure of the remainder of a complex request, such as the implied length being incorrect.
EC_SLAVE_DEVICE_FAILURE	16#4	Exception code - DEVICE: An unrecoverable error occurred while the server (or slave) was attempting to perform the requested action.
EC_ACKNOWLEDGE	16#5	Exception code - DEVICE: The server (or slave) has accepted the request and is processing it, but a long duration of time will be required to do so.
EC_SLAVE_DEVICE_BUSY	16#6	Exception code - DEVICE: The server (or slave) is engaged in processing a long-duration program command. The client (or master) should retransmit the message later when the server (or slave) is free.
EC_NEGATIVE_ACKNOWLEDGE	16#7	Exception code - DEVICE: Slave cannot perform the programming functions. Master should request diagnostic or error information from slave
EC_MEMORY_PARITY_ERROR	16#8	Exception code - DEVICE: Specialized use in conjunction with function codes 20 and 21 and reference type 6, to indicate that the extended file area failed to pass a consistency check.
EC_GATEWAY_PATH_UNAVAILABLE	16#A	Exception code - GATEWAY: Specialized use in conjunction with gateways, indicates that the gateway was unable to allocate an internal communication path from the input port to the output port for processing the request. Usually means that the gateway is misconfigured or overloaded.
EC_GATEWAY_TARGET_DEVICE_FAILED_TO_RESPOND	16#B	Exception code - GATEWAY: Specialized use in conjunction with gateways, indicates that no response was obtained from the target device. Usually means that the device is not present on the network.
EC_UNKNOWN_CODE	16#C	Exception code is greater than 16#000B and therefore unknown
REFERENCE_TO_MODBUS_CLIENT_MISSING	16#F00	Link to the client or to the data of the instance of 'ModbusValue' is missing (FB 'ModbusValue' and method 'OnResponseComplete')
REQUESTED_DATA_TO_LONG	16#F01	The length of the requested data is too long to be processed in a single request (FB 'ModbusValue')
ILLEGAL_RESPONSE_DATA_LENGTH	16#F02	The length of the response data does not match the length of the request data (method 'OnResponseComplete')
READ_TIMEOUT	16#F03	There was no response message from the server within the expected time (FB 'ModbusClient_TCP')
INVALID_CRC	16#F04	The CRC checksum was not correct (RTU protocol only)
COMMUNICATION_ERROR	16#F05	The TCP stream receive instruction reports an error (not used in FB 'ModbusClient_TCP')
INVALID_RESPONSE_TID	16#F06	The response header was invalid (Transaction ID) (method 'ResponseComplete')
INVALID_RESPONSE_ADR	16#F07	The response header was invalid (Unit ID) (method 'ResponseComplete')
INVALID_RESPONSE_FC	16#F08	The response header was invalid (Function Code) (method 'ResponseComplete')
SEND_TIMEOUT	16#F09	The query message could not be sent without fault (FB 'ModbusClient_TCP')