Rockwell Automation 160 RSI SERIAL COMM MODULE - Manual (Page 24)

5–4 RS1 Data Table Interface
6. Reference Command (N41:1) Writing sends a speed reference
to the 160 drive. This is a scaled speed reference from 0 to 32767,
where 0 = 0 Hz and 32767 = P33 - [Maximum Frequency].
7. Feedback Command (N41:1) Reading supplies speed feedback
from the drive. This is the actual drive speed scaled from 0 to
32767, where 0 = 0 Hz and 32767 = P33 - [Maximum
Frequency].
8. RS1 Module Parameters (N42). This area contains information
about the communication configuration.
• Number of ENQ's (N42:0). The number of ENQ's sent by
the module before giving up on receiving ACK or NAK.
• Number of NAK's (N42:1). The number of times the module
will resend a message if the response is always NAK.
• Message Timeout (N42:2). The number of milliseconds the
module will wait before sending an ENQ.
• Application Timeout (N42:3). The number of seconds the
module will wait between messages before faulting the 160
drive.