Appendix B Task Codes Specifications
Task code list
No. Classification
Task code
number
Description Remarks
1 Response 00 Normal execution
01 Task code error
02 Warning
03 Not-executable
05 BUSY
08 Network error
2 CPU control 10 CPU status read
11 CPU run / stop designation *1
16 CPU occupancy/cancel
17 Forced release of occupancy
18 Calendar time clock set/read
1C Line disconnection when a modem is connected.
3 Memory 20 Clear all *1
write 23 Program transfer with address designation *1
26 Write memory assignment *1
27 Parameter modification completion *1
28 Timer/counter set value modification *1
4 Memory read 31 Program read with address designation *1
33 Final ladder search *1
35 Read memory assignment *1
5 I/O control 40 Monitoring with I/O number designation (N continuous points)
42 Forced set/reset with I/O number designation (N continuous points)
44 Monitoring with I/O number designation (N random points)
45 Forced set/reset with I/O number designation (N random points)
11 I/O control A0 Monitoring with I/O number designation (N continuous points)
(not A2 Forced set/reset with I/O number designation (N continuous points)
occupied) A4 Monitoring with I/O number designation (N random points)
A5 Forced set/reset with I/O number designation (N random points)
*1: Not supported on EHV-CPU.
B-3
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