Rockwell Automation 1770, D17706.5.16 Ref Mnl DF1 Protocol Command - Manual (Page 178)

10–7 Diagnostic Status Information
Publication 1770Ć6.5.16 - October 1996
1770ĆKF3 Status Bytes
Bytes Bits Contents Description
1 1 Mode/Status 00 (no modes)
2 2 Type Extender FE
3 3 Extended Interface Type 2C
4 4 Not used 00
5 0Ć4 Series/Revision = 0 release1; = 1 release 2, etc.
5Ć7 = 0 series A; = 1 series B, etc.
6 - 16 all Bulletin Number/Name (in ASCII) 1770ĆKF3
17 - 24 all Product Specific Information 00
1771ĆKA2, ĆKA, ĆKC/KD, ĆKE, ĆKF, ĆKG, ĆKGM, 1770ĆKF2 Status
Bytes
Bytes Bits Contents Description
1 0 - 2 Operating status of
PLC processor
For the 1770ĆKF2, this byte is always 0. For other modules:
0 = Program load mode
1 = Test mode
2 = Run mode
3 = (not used)
4 = Remote Program load
5 = Remote test
3 0 = normal communication; 1 = No communication with PLC
processor
4 0 = Normal; 1 = Download or upload mode
5 0 = Normal; 1 = Format error in communication zone of PLC
program
6 - 7 always zero
2 0 - 3 Type of interface module and processor 0 = 1771ĆKC,ĆKD module
1 = 1771ĆKA2 or (1771ĆKA) module
2 = 1771ĆKA4 module
3 = 1771ĆKE,ĆKF or 1770ĆKF2 module
4 = 1771ĆKG module
5 = 1771ĆKGM module
4 - 7 0 = PLC processor
1 = PLCĆ2 processor
2 = PLCĆ2/20 (LP1) Processor
3 = MiniĆPLCĆ2 processor
5 = PLCĆ2/20 (LP2) processor
6 = PLCĆ2/02, 2/15,Ć2/16, or Ć2/17 processor
7 = PLCĆ2/30 processor
F = computer
3 - 4 all Octal address of the start of the
PLC program.
For the 1770ĆKF2, these bytes are
always 0.
The ladder logic starts at the end of the data table.
To find the physical end of PLCĆ2 memory, look for FFFF
after the address in bytes 3 and 4. The FFFF must appear at
a 1/2 Kbyte junction.
5 - 6 all Memory size Size of memory (in number of bytes) for 1774ĆPLC processor;
zero for all other processors.
7 - 8 all Diagnostic address Starting byte address of diagnostic counters and timers.