Yaskawa MP920 User's Manual Design User Manual
Page 59

2.1 Specifications
2-33
2
Relay Circuit
Instruction
(cont’d)
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: Timer register
Set value = any register or constant (setting unit: 10 ms)
Timer register = M or D register
10-MS OFF-DELAY
TIMER
1-S ON-DELAY
TIMER
Set value: Timer register
Set value = any register or constant (setting unit: 10 ms)
Timer register = M or D register
1-S OFF-DELAY
TIMER
COIL
SET COIL
MB000010 turns ON when MB000000 is ON. Then, MB000010
will stay ON if MB000000 turns OFF.
RESET COIL
MB000010 turns OFF when MB000020 is ON. Then, MB000010
will stay OFF if MB000020 turns OFF.
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
Table 2.23 Ladder Instructions (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