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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 Time 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.
11 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 11 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
18 dAR19
08 to 15 Minutes
18 and AR 19.
Third 00 to 07 Hours
08 to 15 Day of month