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

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Data of the size of the storage RcvDat is received and the rest of data is retained in the receive buffer.

The retained data can be received when the next SerialRcv instruction is executed.

For example, when 10-byte data exists in the receive buffer and the capacity of the receive data storage

RcvDat is 5 bytes, 5-byte data is received and other 5-byte data is retained in the receive buffer. The

value of the RcvSize output variable will be 5 bytes, which represents the size of data that is stored.

Interruption of Instruction Execution

If Abort is changed to TRUE during instruction execution, the execution is interrupted.

When the instruction execution is interrupted, CommandAborted changes to TRUE.

If the change of Abort is too late to interrupt the execution, Done changes to TRUE and the instruction

ends normally.

If both Abort and Execute are changed to TRUE, CommandAborted changes to TRUE.

This interruption operation only finishes the Busy processing, and it does not clear the receive buffer. To

clear the buffer, use the NX_SerialBufClear instruction.

Timing Charts

The following figures show the timing charts.

 Normal end

*1 Receive processing

*2 Data is received in No-protocol mode.

NY-series Instructions Reference Manual (W560)

Receive buffer

Receive processing is performed. 1

Cannot be stored in RcvDat. Data

is retained in the receive buffer.

Receive processing for the data

is performed when the next

NX_SerialRcv instruction is exe-

Cleared to 0.

Updated to result. (16#0000: Normal)

2 Instruction Descriptions

Receive data stor-

age RcvDat[ ]

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