Rockwell Automation 2755-DM9, -DM9E High Speed Decoder - Manual (Page 106)

Interface
Chapter 7
Host Commands Using the RS-232 or RS-422
7–14
Example:
Command: MW4102041289
Response: =00LF
Comments: 4 = match table entry number
1 = match operation enabled
02 = Interleaved 2 of 5
04 =four character code length
1289 = character string
00 = “command complete” response code
LF = end of message code for Line Feed
Command: NC
Function: When sent, this command will zero the no-read counter.
Response: =rr<end>
Comments: NC = Clear No-Read command.
rr = response code, refer to Table 7.B.
<end> = end of message code.
Example:
Command: NC
Response: =00CR
Comments: 00 = “command complete” response code.
CR = end of message control code for Carriage Return.
Command: NMllstring
Function: Write no-read message.
Response: =rr<end>
Comments: NM = Write no-read message command.
ll = length of the no-read message. Must be from 00 to 32.
string = no-read message. Up to 32 characters can be
specified.
rr = response code, refer to Table 7.B.
<end> = end of message control code.
14 Write No-READ Message