Rockwell-automation DAG6.5.8 APPLICATION GUIDE SCADA SYSTEM Manual de usuario Pagina 57

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Publication AG-UM008C-EN-P - February 2005
Configuring Enhanced PLC-5 Processors 2-19
Undelivered Messages word 3 The number of messages that were sent by the processor but not
acknowledged by the destination device
Duplicate Messages
Received
word 9 The number of times the processor received a message packet identical
to the previous message packet
Bad Packet/No ACK word 7 The number of incorrect data packets received by the processor for
which a no ACK was returned
DTR (Data Terminal Ready) word 0;bit 4 The status of the DTR handshaking line (asserted by the processor)
DSR (Data Set Ready) word 0;bit 2 The status of the DSR handshaking line (received by the processor)
RTS (Request to Send) word 0;bit 1 The status of the RTS handshaking line (asserted by the processor)
CTS (Clear to Send) word 0;bit 0 The status of the CTS handshaking line (received by the processor)
DCD (Carrier Detect) word 0;bit 3 The status of the DCD handshaking line (received by the processor)
Status Field Diagnostic File Location Definition
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