Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Publication 1763-RM001C-EN-P - October 2009
514 Protocol Configuration
DF1 Half-Duplex Master Channel Status
Channel Status data is stored in the Communication Status Function File.
Viewing Channel Status Data for DF1 Half-Duplex Master
Communication Status Function DF1 Half-Duplex Master Channel Status
Status Field
Status File Location
(1)
(1) x equals the Channel number.
Definition
Messages Sent CSx:10 The total number of DF1 messages sent by the processor
(including message retries)
Messages Received CSx:11 The number of messages received with no errors
Polls Sent CSx:15 The number of poll packets sent by the processor
Lack of Memory CSx:17 The number of times the processor could not receive a message because
it did not have available memory
Last Normal Poll List Scan CSx:19 Time in 100 ms increments of last scan through Normal Poll List
Last Priority Poll List Scan CSx:21 Time in 100 ms increments of last scan through Priority Poll List
Message Retry CSx:13 The number of message retries sent by the processor
Undelivered Messages CSx:12 The number of messages that were sent by the processor but not
acknowledged by the destination device
Duplicate Messages
Received
CSx:18 The number of times the processor received a message packet identical
to the previous message packet
Bad Packets Received CSx:16 The number of incorrect data packets received by the processor for which
no ACK was returned
Max Normal Poll List Scan CSx:20 Maximum time in 100 ms increments to scan the Normal Poll List
Max Priority Poll List Scan CSx:22 Maximum time in 100 ms increments to scan the Priority Poll List
RTS (Request to Send) CSx:9/1 The status of the RTS handshaking line (asserted by the processor)
CTS (Clear to Send) CSx:9/0 The status of the CTS handshaking line (received by the processor)
DCD (Data Carrier Detect) CSx:9/3 Reserved
Double-click on the Channel Status
Icon Located beneath the
Configuration icon to bring up the
Channel Status screen.
efesotomasyon.com - Allen Bradley,Rockwell,plc,servo,drive

Allen-Bradley MicroLogix 1100 Specifications

General

Processor	32-bit
Programming Software	RSLogix 500
Mounting	DIN rail or panel mount
Power Supply	24V DC
Type	Compact PLC
Digital Inputs	12
Digital Outputs	8
Analog Inputs	4 (depending on model)
Analog Outputs	Optional with expansion module
Programming Language	Ladder Logic
Operating Temperature	0 to 55 °C (32 to 131 °F)
Series	MicroLogix