Omron CJ1G-CPUxx, Instructions Manual

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976
Other Instructions Section 3-31
3-31-9 DISABLE PERIPHERAL SERVICING: IOSP(287) (CS1-H/CJ1-H/
CJ1M Only)
Purpose Disables peripheral servicing during program execution in Parallel Processing
Mode or Peripheral Servicing Priority Mode.
For details on the Parallel Processing Mode and Peripheral Servicing Priority
Mode, refer to Section 6 Advanced Functions in the CS/CJ PLC Programming
Manual.
Note This instruction is supported by the CS1-H, CJ1-H, and CJ1M CPU Units only.
It cannot be used with CS1, CJ1, or CS1D CPU Units.
Ladder Symbol
Variations
Applicable Program Areas
Description Use IOSP(287) in a cyclic task in Parallel Processing Mode (with Synchro-
nous or Asynchronous Memory Access) to disable the following kinds of
peripheral servicing. Peripheral servicing will be enabled again when
IORS(288), the ENABLE PERIPHERAL SERVICING instruction, is executed.
• Event servicing with Special I/O Units
• Event servicing with CPU Bus Units
• Peripheral Port servicing
000001
TOCV
IR0
D00200
S
D
MOV
#1234
,IR0
S
D
MOV
#1234
*D00200
S
D
#1234
#1234
10001Hex
#1234
000000
000000
D0001
IR0 10001Hex
D0001
2001Hex
2001Hex
10001Hex
D00200
D0001
D00200
2001Hex
2001Hex
#1234
• CS/CJ-series program
(Program using indirect Index
Register addressing)
• CS/CJ-series program
In this case, IR0 contains 10001 Hex. The
data area address corresponding to PLC
memory address 10001 Hex is D00001,
so #1234 is transferred to D00001.
CV-series PLC
memory address:
CS/CJ-
series data
area
CS/CJ-
series data
area
address:
Transfer contents of
D00200 to CV-series.
• CV-series program
In this case, IR0 contains 10001 Hex.
Since the data area address
corresponding to CS/CJ-series PLC
memory address 10001 Hex is D00001,
TOCV(285) stores the CV-series PLC
memory address for D00001 (2001 Hex)
in destination word D00200.
PLC memory
address: 10001 Hex
CS/CJ-series
data area
address
CS/CJ-series
data area
address
CS/CJ-series PLC
memory address:
Same
CV-series data
area address
CS/CJ-series
data area
address
Transfer contents
of D00200 to CV-
series.
In the CV-series PLC, the destination of the
MOV(021) instruction is indirectly addressed
(in binary mode) through D00200, so #1234 is
transferred to D00001.
PLC Setup
Indirect DM data:
When indirect DM addresses are in binary, the
content of the DM word is treated as a PLC
memory address and specifies the
corresponding address in I/O memory.
CV-series data
area address
CV-series data
area address
CV-series PLC
memory address
MOV(021)
*
DM specification
IOSP(287)
Variations Executed Each Cycle for ON Condition IOSP(287)
Executed Once for Upward Differentiation @IOSP(287)
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification Not supported.
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK Not allowed