Ny-Series Instructions Reference Manual (W560 - Omron NY532-5400 Reference Manual

2 Instruction Descriptions
• A framing error occurred in the data received.
• An overrun error occurred in the data received.
• CRC mismatch occurred for the received data.
• Timeout time elapsed.
• This instruction is executed for Units other than NX-series Communications Interface Units and
Option Boards.
• An Exception Response was received from a Modbus-RTU slave. You can check Exception
Codes with the ErrorIDEx output variable.
• There was an invalid function code, receive size, etc. in the response data from a Modbus-RTU
slave.
• The serial communications mode of the specified Option Board is not Modbus-RTU master.
• In this instruction, the expansion error code ErrorIDEx is displayed when an error is detected in a
Modbus-RTU slave. An expansion error code is output to ErrorIDEx when the value of error code
ErrorID is WORD#16#0C10. The display format is ErrorIDEx=000000XX. For the value XX, refer to
the Exception Code specifications of the MODBUS communications protocol.
Refer to the MODBUS Application Protocol Specification for the Exception Code specifications of the
MODBUS communications protocol.
You can obtain MODBUS Application Protocol Specification from Modbus Organization, Inc.
http://www.modbus.org/
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NY-series Instructions Reference Manual (W560)