Configuring Channel 0 For Df1 Half-Duplex Slave - Allen-Bradley SLC 500 Series Reference Manual
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Table 13.21 SLC 5/03 and Higher Channel 0 DF1 Half-duplex Master Channel Status (Continued)
Status Field
Message Retry
Undelivered Messages
Duplicate Messages
Received
Bad Packet/No ACK
Max Normal Poll List Scan
Max Priority Poll List Scan
DTR (Data Terminal Ready)
DSR (Data Set Ready)
RTS (Request to Send)
CTS (Clear to Send)
DCD (Data Carrier Detect)
Diagnostic File Location
word 4
word 3
word 9
word 7
word 6
word 13
word 0;bit 4
word 0;bit 2
word 0;bit 1
word 0;bit 0
word 0;bit 3
For processors running OS Series C, FRN 6 and higher, clicking the Clear
button while monitoring Channel Status of either channel 1 or channel 0
online, will reset all of the channel status diagnostic counters for both channels
to zero. Prior to OS Series C, FRN 6 the only channel status diagnostic
counters that are reset when the Clear button is clicked are the ones on the
channel that the programming terminal is connected to. For example, if your
programming terminal is connected online via channel 0 and you are
monitoring the Channel Status of channel 1, when you click on the Clear
button, only channel 0 diagnostic counters will be reset, not channel 1
diagnostic counters.
Configuring Channel 0 for DF1 Half-duplex Slave
To configure an SLC 5/03, SLC 5/04 or SLC 5/05 processor channel 0 for
DF1 half-duplex slave, do the following using your programming software:
To bring up the Channel Configuration
interface, double-click on the Channel
Configuration icon.
Definition
The number of message retries sent by the processor
The number of messages that were sent by the processor but not
acknowledged by the destination device
The number of times the processor received a message packet identical
to the previous message packet
The number of incorrect data packets received by the processor for which
no ACK was returned
Maximum time in 100 ms increments to scan the Normal Poll List
Maximum time in 100 ms increments to scan the Priority Poll List
The status of the DTR handshaking line (asserted by the processor)
The status of the DSR handshaking line (received by the processor)
The status of the RTS handshaking line (asserted by the processor)
The status of the CTS handshaking line (received by the processor)
The status of the DCD handshaking line (received by the processor)
SLC Communication Channels
Publication 1747-RM001G-EN-P - November 2008
13-69
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