Allen-Bradley 2080-LC20-20QBB User Manual page 77

Rockwell Automation Publication 2080-UM005E-EN-E - March 2018
CIP Serial Driver Parameters
Embedded To use embedded responses, choose Enabled
Responses Unconditionally. If you want the controller to use
embedded responses only when it detects embedded
responses from another device, choose After One
Received.
If you are communicating with another Allen-Bradley
device, choose Enabled Unconditionally. Embedded
responses increase network traffic efficiency.
NAK Retries The number of times the controller will resend a
message packet because the processor received a NAK
response to the previous message packet transmission.
ENQ Retries The number of enquiries (ENQs) that you want the
controller to send after an ACK timeout occurs.
Transmit Retries Specifies the number of times a message is retried after
the first attempt before being declared undeliverable.
Enter a value from 0...127.
ACK Timeout Specifies the amount of time after a packet is
(x20 ms) transmitted that an ACK is expected.
Configure Modbus RTU
1. Open your Connected Components Workbench project. On the device
configuration tree, go to the Controller properties. Click Serial Port.
Communication Connections Chapter 5
After One
Received
3
3
3
50
67