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Chapter 6 Instruction and Flag List
XBC E-Type Main Unit
6-209
Ver. 1
6.32.9 IORF, IORFP
Instruction
Area Available
Step
Flag
P M K
F
L
T
C
S
Z D.x R.x
Con
st
U
N
D
R
Error
(F110)
Zero
(F111)
Carry
(F112)
IORF(P)
S1
-
-
-
-
-
-
-
-
-
-
-
O
-
-
-
-
4~6
O
-
-
S2 O O O O O O O
-
O
-
-
O O O O O
S3 O O O O O O O
-
O
-
-
O O O O O
Operand
Description
Data Type
S1
Position (base + slot) I/O module to process immediately.
WORD
S2
Upper 32-bit data or Device Number to mask
DWORD
S3
Lower 32-bit data or Device Number to mask
DWORD
1) IORF (I/O Refresh)
(1)
Performs AND process between specified S1’s I/O module value and mask value input in S2/S3 immediately
to process the data.
(2)
Performs mask process as based on I/O points positioned in S1 specified. For example, if the module to
refresh I/O is 16 points, mask data of lower 16 bits only needs to be input.
(3)
IORF will be used when the newest input information is needed during PLC operation, or operation result
is at once to be output.
(4)
If I/O module is not installed at specified module position, or different module is installed, there will be no
operation.
2) Program Example
(1) ‘h0001’ means No.1 slot of No.0 base. If I/O Fixed allocation is specified, applicable module address is
P00040~P0007F in 64 points Input module.
(2) When D01000=hFFFF, D01001=h0000, D01100=hFFFF and D01101=h0000, if Input signal is changed from
Off to On:
P0004 does refresh the input data since D01100 is masked as hFFFF.
P0005 does not refresh the input data since D01101 is masked as h0000.
P0006 does refresh the input data since D01000 is masked as hFFFF.
P0007 does not refresh the input data since D01001 is masked as h0000.
IORFP 01 D01000 D01100
P00000
Remark
(1) In case of using hybrid module, S2 value is the output mask data and S3 value is the input mask data. If it refreshes
hybrid module with 16 points input and 16 points output, S3's data becomes the mask data of the input, S2's data
becomes the mask data of the output.
IORF
IORFP
S1 S2
IORFP
IORF
S1 S3 S3
S3
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