Rockwell Automation 1769-L20_L30 CompactLogix Controller Installation Instructions - Manual (Page 14)

14 1769-L20, 1769-L30 CompactLogix™ Controllers
Publication 1769-IN047C-EN-P - April 2003
Default Communication Configuration
Channel 0 and Channel 1 (1769-L30 controller only) have the following default
communication configuration.
Parameter Default
Protocol DF1 full-duplex
Baud Rate 19.2K
Parity none
Station Address 0
Control Lines no handshaking
Error Detection BCC
Embedded Responses auto detect
Duplicate Packet (Message) Detect enabled
ACK Timeout 50 (x 20 ms)
NAK Receive Limit 3 retries
ENQ Transmit Limit 3 retries
Data Bits 8
Stop Bits 1