Rockwell Automation 2755 Enhanced Decoder Series B - Manual (Page 257)

15–69 ASCII Host Commands
Publication 2755-833
PI - Read Decoder Performance Indicators
Command Format: P I
Function: Reads the decoder performance indicators for
Scanners A and B.
Parameters: None
Response
Parameters
Parameter Function Valid Values
aaa
Scanner A Performance
Indicator 3 digit value
000 through 100, 999
①
bbb
Scanner B Performance
Indicator
3 digit value
000 through 100,
999
①②
① 999 indicates the decoder is not decoding because of a buffer overflow
condition.
② Applicable only with dual head scanner.
Response: aaa = rr for single head scanners ,
or
aaabbb = rr
for dual head
scanners.
= end of message code
rr= response code
= end of message code
Example:
Command: P I
Response: 000099LF = 00LF
Response
Parameters
Parameter Function Values
aaa
Scanner A Performance
Indicator
000
bbb
Scanner B Performance
Indicator
099
LF= end of message control code
00= command complete
response code
LF= end of message control code