Rockwell Automation 1770-KF2 Data Highway or Highway Plus Interface Module User Manual - Manual (Page 95)

Message Packet Formats
Chapter 5
5-16
Table 5.E
Contents of Status DATA for PLC-5
Byte Bit Value Meaning
1 Operating Status of PLC-5 Processor
0-2 0
1
2
3
4
5
6
7 Program Load
Not Used
Run Mode
Not Used
Remote Program Load
Remote Test
Remote Run
Not Used
3 0
1 Normal
Major Processor Fault
4 0
1 Normal
Download Mode
5 -- Not Used
6 0
1 Not Testing Edits
Testing Edits
7 0
1 Not Testing Edits
Testing Edits
2 Processor Type
0-3 11 PLC-5
4-7 11 PLC-5
3-6 Size of User Memory (Low Word First, Low Byte First)
7 Series and Revision of PLC-5
0-4 0
1 Revision A
Revision B, Etc.
5-7 0
1 Series A
Series B, Etc.
8 Processor Number on PCL Link
9 I/O Address — Address of the processor if it is an adapter. If it is a scanner, then value is
0FDH.
10 I/O and Communication Parameters
0
1
2
5
6 0
1
1
1
1 Double Density
Adapter Mode
Module Group 4 Top Half
Adapter Is Half Rack
PCL at 115K Baud
11-12 Number of Data Table Files (Low Byte First)
13-14 Number of Program Type Files (Low Byte First)
15 Forcing Status
0
4 1
1 Forces Active
Forces Are Present in the Tables
16 Memory Protect Indication — Non-Zero means memory is protected.
17 Bad RAM Indication — Non-Zero means RAM is bad, must be cleared.