Omron SYSMAC CJ - REFERENCE MANUAL 08-2008

1215
Block Programming Instructions Section 3-32
operating at the same time. An error will occur in the program check if the
same timer number is used in more than one timer instruction.
An error will occur and the Error Flag will turn ON if an indirect IR designation
is used for N in BCD mode and the address is not for a timer present value or
if SV is not BCD.
The timer will not operate correctly if the cycle time is 100 ms or longer.
Examples In the following example, “B” will be executed 20 seconds after “A” whenever
CIO 000000 is ON.
3-32-10Loop Control: LOOP(809)/LEND(810)/LEND(810) NOT
Purpose Create a loop that is repeatedly executed until an execution condition turns
ON or OFF or until an execution condition turns ON.
Ladder Symbol
Variations
Applicable Program Areas
Note LOOP(809), LEND(810), and LEND(810) NOT must be used in block pro-
gramming regions even within subroutines and interrupt tasks.
Address Instruction Operand
000221 LD 000001
000222 BPRG 1
.
.
A.
.
000250 TMHW 0002
#0020
.
.
B.
.
000281 BEND ---
1
LOOP(809)
LEND(810)
LEND(810)
LEND(810) NOT B
B
B: Bit operand
Variations Always Executed in Block Program
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK