Rockwell-automation 1769-ASCII Compact I/O ASCII Module Manual do Utilizador descarregar pdf (Página 76)

76 Rockwell Automation Publication 1769-UM012B-EN-P - January 2014

Chapter 3 I/O Memory Mapping

Status Descriptions

This table describes the status tags.

Add-On Profile Abbr. Definition

ChxHandshakeError HE Handshake error. Used for Handshake mode only.

ChxNewData ND New data. Used for Handshake mode only.

ChxNonDelimitedRecord NR Non-delimited record. An input record is received and sent to the Compactbus

interface that was not triggered by receiving a delimiter character. This occurs

when either the buffer is filled to its maximum receive size or a Message

Timeout has occurred.

ChxParityError PA Parity error. A parity error has occurred with the received data string. This

usually indicates a mismatch in the serial port setup of the ASCII device and the

Compact module. It can indicate also that noise has occurred on the line and

degraded the signal.

This bit is set when the receive FIFO contains a message that parity error

occurred in on of the incoming bytes. This bit is reset when the receive FIFO is

emptied or when a new message is received with no parity error.

ChxRxFIFOEmpty RF Data in the receive FIFO. The FIFO is not empty. The input FIFO has not sent all

of its data to the CompactBus interface.

ChxRxDataLost RO Receive buffer overflow. Some input data has been lost.

ChxTxFIFOEmpty TF Data in transmit FIFO. The FIFO is not empty. The output FIFO has not sent all of

its data to the ASCII device.

Ch0TxDataOverFlow TG Transmit greater than Max Error. Transmit length in the output file is greater

than the maximum transmit character length in the configuration file.

ChxTxDataLost TO Transmit buffer overflow. Some output data has been lost.

ChxTxDataSent TS Transmit sent. Indicates that the 1769-ASCII module has sent the data

indicated by the Tx Transaction ID and can accept more transmit data.

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Rockwell-automation 1769-ASCII Compact I/O ASCII Module Manual do Utilizador Página 76