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Appendix D How to Use PLC Function|
Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11 D-45
Program Example:
Ladder diagram: Command code: Operation:
LD X0 Load A contact of X0
PLF M0 M0 falling-edge output
LD M0 Load the contact A of M0
X0
M0
PLF
M0
Y0SET
Timing Diagram:
a scan time
X0
M0
Y0
SET Y0 Y0 latched (ON)
Mnemonic Function
END Program End
Operand
None
Explanations:
It needs to add the END command at the end of ladder diagram program or command program. PLC
will scan from address o to END command, after executing it will return to address 0 to scan again.
D.5.9 Description of the Application Commands
Mnemonic
Codes
Steps
API
16 bits 32 bits
P
Command
Function
16-bit 32-bit
10 CMP --
Compare 7 --
11 ZCP --
Zone compare 9 --
12 MOV --
Data Move 5 --
Transmission
Comparison
15 BMOV --
Block move 7 --
20 ADD --
Perform the addition of
BIN data
7 --
Four
Fundamental
Operations of
Arithmetic
21 SUB --
Perform the subtraction
of BIN data
7 --