C40K-CDR-A Omron, C40K-CDR-A Datasheet - Page 71

• Manufacturer Part Number: C40K-CDR-A
• Description: PROGRAMMABLE CONTROLLER CPU
• Manufacturer: Omron

Specifications of C40K-CDR-A

• Leaded Process Compatible: No
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Controlling Bit Status
4-7
4-7-1
Deleting an Instruction
Controlling Bit Status
DIFFERENTIATE UP and DIFFERENTIATE DOWN
0000
0001
There are five instructions that can be used generally to control individual bit
status. These are the OUTPUT or OUT, OUTPUT NOT or OUT NOT, DIF-
FERENTIATE UP, DIFFERENTIATE DOWN, and KEEP instructions. All of
these instruction appear as the last instruction in an instruction line and take
a bit address for an operand. Although details are provided in 5-6 Bit Control
Instructions , these instructions are described here because of their impor-
tance in most programs. Although these instructions are used to turn ON and
OFF output bits in the IR area (i.e., to send or stop output signals to external
devices), they are also used to control the status of other bits in the IR area
or in other data areas.
DIFFERENTIATE UP (DIFU(13)) and DIFFERENTIATE DOWN (DIFD(14))
instructions are used to turn the operand bit ON for one cycle at a time. The
DIFFERENTIATE UP turns ON the operand bit for one cycle after the execu-
tion condition when it goes from OFF to ON; the DIFFERENTIATE DOWN
instruction turns ON the operand bit for one cycle after the execution condi-
tion when it goes from ON to OFF.
DIFD(14) 0501
DIFU(13) 0500
Program After Deletion
Address Instruction
Address
Address
0000
0001
0002
0003
0004
0005
0006
0007
0008
0000
0001
0000
0001
Confirm that this is the
instruction to be deleted.
Find the instruction
that requires deletion.
Instruction
Instruction
LD
AND NOT
LD
AND NOT
OR LD
AND
AND
AND NOT
OUT
LD
DIFU(13)
LD
DIFD(14)
Operands
Operands
Operands
Section 4-7
0100
0101
0201
0102
0103
0105
0104
0201
0000
0500
0001
0501
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