Yaskawa MP920 User's Manual Design - Manual (Page 529)

Appendix A
A.2.1 Ladder Instruction List
A-14
Relay Circuit
Instruction NO CONTACT No limit in a series circuit.
Bit designation of any register as a relay number is possible.
NC CONTACT No limit in a series circuit.
Bit designation of any register as a relay number is possible.
RISING PULSE No limit in a series circuit.
Bit designation of any register as a relay number is possible.
FALLING PULSE No limit in a series circuit.
Bit designation of any register as a relay number is possible.
10-MS ON-DELAY
TIMER Set value: Timer register
Set value = any register or constant (setting unit: 10 ms)
Timer register = M or L register
10-MS OFF-
DELAY TIMER
1-S ON-DELAY
TIMER Set value: Timer register
Set value = any register or constant (set ting unit: 10 ms)
Timer register = M or L register 1-S OFF-DELAY
TIMER
COIL
SET COIL
RESET COIL
Branching/
convergence A branching or convergence symbol can be connected to any
of the above relay instructions.
Logic
Operation
Instructions AND
V
Integer designation of any register or constant is possible.
OR V Integer designation of any register or constant is possible.
XOR Integer designation of any register or constant is possible.
Numeric
Operation
Instructions ADDITION + Ordinary numeric addition (with operation error)
SUBTRACTION - Ordinary numeric subtraction (with operation error)
EXTENDED
ADDITION ++ Closed numeric addition (without operation error)
0
→ 32767 → -32768 → 0
EXTENDED
SUBTRACTION - - Closed numeric subtraction (without operation error)
0
→ -32768 → 32767 → 0
INTEGER ENTRY Starts an integer operation.
REAL NUMBER
ENTRY Starts a real number operation.
(cont’d)
Type Name Symbol Description
T
T
T
S
S
S
MW0200 = 0001
MB000000
MB000000
IFON
S MB000010 MB000000
S
R MB000010 MB000020
R
MW00280 + 00100 MW00220
MW00280 - 00100 MW00220
MW00280 + 00100 MW00220
MF00280 + 1.000000E + 002 MF00220