Changing Check Format Of Chk Instruction (Chkcir,Chkend) - Mitsubishi MELSEC Q Series Programming Manual

CHKCIR,CHKEND
7.10.2

Changing check format of CHK instruction (CHKCIR,CHKEND)

CHKCIR,CHKEND
When the GX Developer is used (High Performance model QCPU/Process CPU/
Redundant CPU)
CHKST
CHK
CHKCIR
CHKEND
Setting
Data
––
Function
CHKCIR, CHKEND
(1) The check ladder pattern that will be used in the CHK instruction can be updated to any
format desired.
The actual failure checks are conducted with the CHKST and CHK instructions.
(2) Failure checks are conducted according to the check conditions designated by the CHK
instruction and the ladder pattern described between the CHKCIR and CHKEND
instructions.
Remark
7-178
Command
X X X
SM400
Ladder pattern to be checked
SM400
Internal Devices
R, ZR
Bit Word
Refer to 7.10.1 for more information on the CHKST and CHK instructions.
To change the check format of the CHK instruction using the CHKCIR to CHKEND
instructions, the user should create a ladder with index modification (Z0).
High
Basic
performance
X
J \
U \G
Bit Word
––
Process
Redundant Universal LCPU
CHKST Refer to
Section
7.10.1.
CHK
CHKCIR
Fn
Fn
Max. 9 coils
Fn
CHKEND
Zn Constants Other