Rockwell Automation 1775-KA PLC-3 Communication Adapter Module User Manual User Manual
Page 190
Message Formats
Appendix A
AĆ28
Byte
Meaning
7,8
Starting byte address of the diagnostic counters and timers. There is
a separate block of diagnostic timers and counters for the data
highway port and the RS-232-C port. The address given here is the
one for the port that received the diagnostic status command.
9
Series and revision number of the 1775-KA module:
Bits 0 to 4:
0 = Revision A
1 = Revision B
etc.
Bits 5 to 7:
0 = Series A
1 = Series B
etc.
10
Not used
11
to
14
The physical address of the unused word of PLC-3 system memory.
This is the physical address corresponding to the logical address
E60.0.0.0.
15
t
18
The total number of words in PLC-3 system memory (both used and
unused). This is the physical word address corresponding to the
logical address E63.0.0.0.
Set ENQs
Use this command to set the maximum number of ENQs that the station
interface module will issue per message transmission. Put the number in
the DATA field. The default setting for the KE/KF module is 10 ENQs
per transmission.
Command Format:
FNC
DLE
SRC
STX
DST
C
06
S
TNS
MD
TS
TNS
DLE ETX
BCC
06
DATA
Reply Format:
DLE
SRC
STX
DST
C
46
S
TNS
MD
TS
TNS DLE ETX
BCC