Data Highway Message Set
Chapter 8
812
Table 8.B
Status Information (in Hex) Received from a 1779KP3 interface
Byte
Bit
Value
Meaning
Mode of
Programmable
Controller
1
02
0
1
2
Program Load
Test
Run
3
0
1
Normal
Major Processor Fault
4
0
1
Normal
Shutdown Requested
5
0
1
Normal
Shutdown in Effect
6, 7
Not Used
Interface Type
and Processor
Type
2
03
0E
See Byte 3 for Interface Type
47
4
PLC3 Family Processor
Interface Type
3
07
12
1779KP3 Interface
Current Context
4
03
Not Used
47
115
Current Context
Module Number
5
07
115
Module Number of 1779KP3 in PLC3
Chassis
Mode Control
Word
6
7
07
07
Bytes 6 and 7 contain the current value of the
mode control word. The logical address of this
word is E0.0.0.3.
Diagnostic
Counters
8
9
07
07
Bytes 8 and 9 contain the starting byte address
of diagnostic counters.
Revision and
Series Level of
the 1779KP3
10
04
0
1
Revision A
Revision B
Etc.
57
0
1
Series A
Series B
Etc.
11
Not Used
Last Word Used
in Memory
12
13
14
15
07
07
07
07
Physical address of the last word used in
PLC3 system memory. This physical address
corresponds to the logical address E60.0.0.0.
Number of
Words in
Memory
16
17
18
19
07
07
07
07
Total number of words (used and unused) in
PLC3 system memory. This physical word
address corresponds to the logical address
E63.0.0.0.