Double Decrement Bcd: - -Bl(597) - Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual

Increment/Decrement Instructions
3-10-8 DOUBLE DECREMENT BCD: – –BL(597)
Purpose
Ladder Symbol
Variations
Applicable Program Areas
Operand Specifications
Description
Decrements the 8-digit BCD content of the specified words by 1.
− −
BL(597)
Wd
Wd: First word
Variations Executed Each Cycle for ON Condition
Executed Once for Upward Differentiation
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification
Block program areas
OK OK
Area
CIO Area
Work Area
Holding Bit Area
Auxiliary Bit Area
Timer Area
Counter Area
DM Area
EM Area without bank
EM Area with bank
Indirect DM/EM
addresses in BCD
Indirect DM/EM
addresses in BCD
Constants
Data Registers
Index Registers
Indirect addressing
using Index Registers
The – –BL(597) instruction subtracts 1 from the 8-digit BCD content of Wd+1
and Wd. The content of the specified words will be decremented by 1 every
cycle as long as the execution condition of – –BL(597) is ON. When the up-
differentiated variation of this instruction (@– –BL(597)) is used, the content
Step program areas Subroutines
OK
CIO 0000 to CIO 6142
W000 to W510
H000 to H510
A448 to A958
T0000 to T4094
C0000 to C4094
D00000 to D32766
E00000 to E32766
En_00000 to En_32766
(n = 0 to C)
@ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
*D00000 to *D32767
*E00000 to *E32767
*En_00000 to *En_32767
(n = 0 to C)
---
---
---
,IR0 to ,IR15
–2048 to +2047, IR0 to –2048 to +2047, IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
Section 3-10
– –BL(597)
@– –BL(597)
Not supported
Interrupt tasks
OK
Wd
423