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
Y0
SET
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 --
Summary of Contents for AC Motor Drive VFD-E
Page 1: ......
Page 2: ......
Page 3: ......
Page 13: ...This page intentionally left blank...
Page 233: ......
Page 274: ...Appendix B Accessories Revision June 2008 04EE SW PW V1 11 CTL V2 11 B 37...