Omron CJ - INSTRUCTIONS REFERENCE MANUAL 07-2009 Reference Manual page 227

3. Instructions
• Program operation can be switched more efficiently by using interlocks with MILH(517) or MILR(518).
Instead of switching processing with compound conditions, insert an MILH(517) or MILR(518)
instruction before each process and an MILC(519) instruction after each process.
• Unlike the IL(002) interlocks, MILH(517) and MILR(518) interlocks can be nested, so the operation of
similar programs will be different if MILH(517) or MILR(518) is used instead of ILC(002).
• Program with MILH(517)/MILC(519) Interlocks
a
A1
b
A2
A3
• Program with IL(002)/ILC(003) Interlocks
a
A1
b
A2
A3
• If there are bits which you want to remain ON in a program section interlocked by MILH(517) or
MILR(518), set these bits to ON with SET just before the MILH(517) or MILR(518) instruction.
190
a
A1
b
A2
MILH
Execution
0
condition
100.00
a
OFF ON
OFF
MILH
ON OFF
1
100.01 ON ON
MILC
1
MILC
0
IL
Execution
condition
a
OFF ON
IL
OFF
ON OFF
ON ON
ILC
This program section is not
controlled by the interlock.
This ILC(003)
ILC
instruction is ignored
so ...
a
MILH
0
A1
b
MILH
1
A2
MILC
1
MILC
0
Program section
b A1
Interlocked Interlocked
Not interlocked Interlocked
Not interlocked Not interlocked
Program section
b A1
Interlocked Interlocked
Not interlocked Interlocked
Not interlocked Not interlocked
CS/CJ/NSJ Series Instructions Reference Manual (W474)
A2 A3
Not interlocked
Not interlocked
Not interlocked
A2 A3
Not interlocked
(Not controlled
by the
IL(002)/ILC(003)
interlock.)