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Sequence Output Instructions Section 3-4
3-4-4 DIFFERENTIATE UP/DOWN: DIFU(013) and DIFD(014)
Purpose DIFU(013) turns the designated bit ON for one cycle when the execution con-
dition goes from OFF to ON (rising edge).
DIFD(014) turns the designated bit ON for one cycle when the execution con-
dition goes from ON to OFF (falling edge).
Ladder Symbols
Variations
Note Immediate refreshing is not supported by CS1D CPU Units.
Note Immediate refreshing is not supported by CS1D CPU Units.
Applicable Program Areas
Operand Specifications
DIFU(013)
B
DIFD(014)
B
B: Bit
B: Bit
Variations Executed Each Cycle for ON Condition Not supported
Executed Once for Upward Differentiation DIFU(013)
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification (See note.) !DIFU(013)
Variations Executed Each Cycle for ON Condition Not supported
Executed Once for Upward Differentiation DIFD(014)
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification (See note.) !DIFD(014)
Block program areas Step program areas Subroutines Interrupt tasks
Not allowed OK OK OK
Area B
CIO Area CIO 000000 to CIO 614315
Work Area W00000 to W51115
Holding Bit Area H00000 to H51115
Auxiliary Bit Area A44800 to A95915
Timer Area ---
Counter Area ---
DM Area ---
EM Area without bank ---
EM Area with bank ---
Indirect DM/EM
addresses in binary
---
Indirect DM/EM
addresses in BCD
---
Constants ---
Data Registers ---
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