Appendix DMemory Areas
459
Word(s) FunctionBit(s)
23 00
to 15
Power Off Counter (BCD)
24
00 to 04
Reserved by system.
05 Cycle T
ime Flag
06 SYSMAC LINK System Network Parameter Flag for operating level 1
07 SYSMAC LINK System Network Parameter Flag for operating level 0
08 SYSMAC/SYSMAC NET Link Unit Level 1 Mounted Flag
09 SYSMAC/SYSMAC NET Link Unit Level 0 Mounted Flag
10 Reserved by system.
1
1 and 12
PC Link Level
13 Rack-mounting Host Link Unit Level 1 Mounted Flag
14 Rack-mounting Host Link Unit Level 0 Mounted Flag
15 CPU-mounting Device Mounted Flag
25
00 to 1
1 Reserved by system.
12 Trace End Flag
13 Tracing Flag
14 Trace Trigger Bit (writeable)
15 Trace Start Bit (writeable)
26
00 to 15
Maximum Cycle Time (0.1 ms)
27
00 to 15
Present Cycle Time (0.1 ms)
DM Area (Error Log)
Word Function
DM
6000
Error Pointer (Incremented by 1 for each error (0000 to 000A)
DM 6001 to
DM 6030
Error Records (3 words per error for 10 errors, 30 words total)
See following table for structure of individual records.
Word Bit Content
First
00 to 07
Error code (see error information provided elsewhere)
08 to 15
00 (non-fatal) or 80 (fatal)
Second
00 to 07
Seconds Clock data read from AR