Flag Operations During Pulse Output - Omron SYSMAC CJ Series User Manual

Appendices
A-1

Flag Operations during Pulse Output

The flags related to pulse outputs are refreshed at the following times.
• When PULS(886) is executed
• When pulse output operation is started or stopped by SPED(885), ACC(888), PLS2(887), INI(880), or
ORG(889)
• When the Reset Flag is turned ON
• When the operating status of the CPU Unit changes, i.e., when power is turned ON or when opera-
tion is started or stopped
Relationship between Flag Changes and Refresh Timing
PULS (886)
SPED(885)
ACC(888)
PLS2(887)
IFEED(892)
PWM(891)
INI(880)
ORG Origin search
(889)
Origin return
Operation starts.
Operation stops.
Reset
Power ON
Stop at limit input with
*1
origin held
Stop at limit input with
*1
undefined origin
---: No change, ↑ ↓: Both ON and OFF, ↑: ON Only, ↓: OFF Only, 0: Cleared to 0
*1 Operation is according to the Clear Origin at Limit Input Signal setting in the PLC Setup.
*2 The PV and Overflow/Underflow Flags are cleared when a limit input turns ON and the origin is set to be unde-
fined.
*3 If the limit input function is set in the PLC Setup to always be enabled even when the limit input signal is set to
be used for a function other than the origin search function, an error will occur if the origin input (AR) turns ON.
A-2
PVs
↑
--- --- ---
↑↓ ↓
Changes ---
↑↓ ↑↓ ↓
Changes
↑↓ ↑↓
Changes ---
↑↓ ↑↓ ↓
Changes
--- --- --- ---
↓ ↓ ↓
Changes
↑↓ ↓
Changes ---
↑↓
Changes --- ---
↓ ↓ ↓
0
↓ ↓
--- ---
↓
Changes --- ---
↓ ↓ ↓
0
↓
Changes --- ---
↓
*2 *2 ---
↓
0
--- --- --- ---
↑↓ ↑↓ ↑↓
---
↑↓ ↑↓ ↑↓
---
↑↓ ↑↓ ↑↓
---
↑↓ ↑↓ ↑↓
---
--- --- --- ---
↓ ↓ ↑↓
---
↑↓ ↑↓ ↑
---
↑↓ ↑↓ ↑
---
↓ ↓ ↑
---
↓ ↓
--- ---
↑ ↓
--- ---
↓ ↓ ↑ ↓
↓
--- --- ---
↓ ↑
--- ---
CJ2M CPU Unit Pulse I/O Module User's Manual
*3 --- --- ---
---
*3 --- --- ---
---
*3 --- --- ---
---
*3 --- --- ---
---
↑↓ ↑↓
*3 ---
---
↑
*3 --- ---
---
↓ ↓
*3 ---
---
↑↓
--- --- ---
*3 --- --- ---
---
↓ ↓
*3 ---
---
↓ ↓
*3 ---
---
*3 --- --- ---
---
↓ ↓ ↓ ↓
↓
*3 --- ---
↑↓
↓
*3 --- ---
↑↓