Omron CP - PROGRAMMING MANUAL 05-2007 Programming Manual page 480

Logic Instructions
Flags
Precautions
3-12-8 DOUBLE EXCLUSIVE NOR: XNRL(613)
Purpose
Ladder Symbol
Variations
Applicable Program Areas
Operand Specifications
Name Label
Error Flag ER
Equals Flag =
Negative Flag N
When XNRW(037) is executed, the Error Flag will turn OFF.
If as a result of the NOR, the content of R is 0000 hex, the Equals Flag will
turn ON.
If as a result of the NOR, the leftmost bit of R is 1, the Negative Flag will turn
ON.
Takes the logical exclusive NOR of corresponding bits in double words of
word data and/or constants.
XNRL(613)
I
1
I
2
R
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
Area
CIO Area
Work Area
Holding Bit Area
Auxiliary Bit Area
Timer Area
Counter Area
DM Area
Indirect DM addresses
in binary
Indirect DM addresses
in BCD
Constants
Data Registers
Operation
OFF
ON when the result is 0.
OFF in all other cases.
ON when the leftmost bit of R is 1.
OFF in all other cases.
I : Input 1
1
I : Input 2
2
R: Result word
Step program areas
OK OK
I
1
CIO 0 to CIO 6142
W0 toW 510
H0 to H510
A0 to A958
T0000 to T4094
C0000 to C4094
D0 to D32766
@ D0 to @ D32767
*D0 to *D32767
#00000000 to #FFFFFFFF (binary)
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Section 3-12
XNRL(613)
@XNRL(613)
Not supported.
Subroutines Interrupt tasks
OK
I R
2
A448 to A958
---
447