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96
Computing the Cycle Time
Section 2-7
2-7-3
Functions Related to the Cycle Time
Minimum Cycle Time
Set the minimum cycle time to a non-zero value to eliminate inconsistencies in
I/O responses. A minimum cycle time can be set in the PLC Setup between 1
and 32,000 ms in 1-ms increments.
This setting is effective only when the actual cycle time is shorter than the
minimum cycle time setting. If the actual cycle time is longer than the mini-
mum cycle time setting, the actual cycle time will remain unchanged.
PLC Setup
Watch Cycle Time
If the cycle time exceeds the watch (maximum) cycle time setting, the Cycle
Time Too Long Flag (A401.08) will be turned ON and PLC operation will be
stopped.
PLC Setup
Related Flags
Cycle Time
Monitoring
The maximum cycle time is stored in A262 and A263 and the present cycle
time is stored in A264 and A265 every cycle.
Minimum cycle time
(effective)
Minimum cycle time
(effective)
Minimum cycle time
(effective)
Actual cycle
time
Actual cycle
time
Actual cycle
time
Minimum cycle time
Actual cycle
time
Minimum cycle time
Actual cycle
time
Minimum cycle time (effective)
Actual cycle
time
Name
Settings
Default
Minimum cycle time
0000 to 7D00 hex
(1 to 32,000 ms in 1-ms incre-
ments)
0000 hex: Variable cycle time
Name
Settings
Default
Enable Watch Cycle
Time Setting
0: Default (1 s)
1: User setting
0000 hex: Watch cycle time of
1 s
Watch Cycle Time
001 to FA0: 10 to 40,000 ms
(10-ms increments)
Name
Address
Description
Cycle Time Too Long
Flag
A401.08
Turns ON if the present cycle time exceeds the
Watch Cycle Time set in the PLC Setup.
Summary of Contents for Sysmac CP1H
Page 2: ......
Page 3: ...CP1H X40D CP1H XA40D CP1H Y20DT D CP1H CPU Unit Operation Manual Revised October 2014...
Page 4: ...iv...
Page 10: ...x...
Page 18: ...xviii...
Page 22: ...xxii...
Page 34: ...xxxiv Conformance to EC Directives 6...
Page 76: ...42 Function Blocks Section 1 5...
Page 176: ...142 CP series Expansion I O Unit Wiring Section 3 6...
Page 372: ...338 Analog I O XA CPU Units Section 5 5...
Page 578: ...544 Trouble Shooting Section 8 7...
Page 622: ...588 Sample Application Section 9 12 Network Settings Network Tab Network Settings Driver Tab...
Page 668: ...634 Standard Models Appendix A...
Page 744: ...710 Auxiliary Area Allocations by Address Appendix D...
Page 771: ...737 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 772: ...738 Connections to Serial Communications Option Boards Appendix F...
Page 800: ...766 Specifications for External Power Supply Expansion Appendix H...
Page 806: ...772 Index W Work Area 165 work bits 165 work words 165 write protection 379...
Page 808: ...774 Revision History...
Page 809: ......