C60K-CDR-A Omron, C60K-CDR-A Datasheet - Page 76

• Manufacturer Part Number: C60K-CDR-A
• Description: PROGRAMMABLE CONTROLLER CPU
• Manufacturer: Omron

Specifications of C60K-CDR-A

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

Programming Precautions
64
0000
0001
0001
0000
0207
0207
1813
Diagram A
Diagram B
Diagram A:
Diagram B:
Often, complicated programs are the result of attempts to reduce the number
of times a bit is used.
Every instruction line must also have at least one condition on it to determine
the execution condition for the instruction at the right. Again, diagram A , be-
low, must be redrawn as diagram B. If an instruction must always be exe-
cuted (e.g., if an output must always be kept ON while the program is being
executed), the Always ON Flag (1813) in the SR area can be used.
There are, however, a few exceptions to this rule, including the INTERLOCK
CLEAR, JUMP END, and STEP Instructions. Each of these instructions is
used as the second of a pair of instructions and is controlled by the execution
condition of the first of the pair. Conditions should not be placed on the in-
struction lines leading to these instructions. Refer to Section 5 Instruction Set
for details.
When drawing ladder diagrams, it is important to keep in mind the number of
instructions that will be required to input it. In diagram A, below, an OR Load
instruction will be required to combine the top and bottom instruction lines.
This can be avoided by redrawing as shown in diagram B so that no AND
LOAD or OR LOAD instructions are required. Refer to 5-5-2 AND LOAD and
OR LOAD for more details and 4-6 Inputting, Modifying and Checking the
Program for further examples.
Instruction
Instruction
0207
0207
Address Instruction
0000
0001
Address
Address
0000
0001
0002
0003
0004
0000
0001
0002
0003
LD
Instruction
Instruction
Instruction
LD
LD
AND
OR LD
OUT
LD
AND
OR
OUT
Operands
Operands
Operands
Section 4-9
1813
0000
0001
0207
0207
0001
0207
0000
0207
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