Mitsubishi Electric QS001CPU User Manual page 201

12
TROUBLESHOOTING
Number Name
Number of
SD340
modules mounted
SD341 I/O number
Ethernet
information
SD342 Network number
SD343 Group number
SD344 Station number
(3) System clocks/counters
Number Name
1 second
SD412
counter
2n second
SD414
clock setting
SD420 Scan counter
Meaning
• Indicates the number of mounted Ethernet modules.
• Indicates the I/O number of mounted Ethernet module.
• Indicates the network number of mounted Ethernet module.
• Indicates the group number of mounted Ethernet module.
• Indicates the station number of mounted Ethernet module.
Table12.23 Special register
Meaning
Number of • Following programmable controller CPU module RUN, 1 is
counts in 1- added each second
second units • Count repeats from 0 to 32767 to -32768 to 0
2n second • Stores value n of 2n second clock (Default is 30)
clock units • Setting can be made between 1 to 32767
Number of • Incremented by 1 for each scan execution after the CPU
counts in each module is set to RUN.
scan • Count repeats from 0 to 32767 to -32768 to 0
Explanation
Explanation
12.7 Special Register List
Set by Corresponding
(When set) CPU
QS
S (Initial)
Set by Corresponding
(When set) CPU
S (Status
change)
U QS
S (Every END)
12
- 94
9
10
11
12