Fnc 66 - Alt / Alternate State - Mitsubishi Electric FX3G SERIES Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
14.7 FNC 66 – ALT / Alternate State
Outline
This instruction alternates a bit device (from ON to OFF or from OFF to ON) when the input turns ON.
1. Instruction format
FNC 66
P
ALT
2. Set data
Operand type
D
3. Applicable devices
Bit Devices
Oper-
and System User
Type
X Y M T C S D .b KnX KnY KnM KnS
S D
2
: "D .b" is available only in FX
Explanation of function and operation
1. 16-bit operation (ALT and ALTP)
Alternating output (1-step)
Every time the command input turns from OFF to ON, a bit device specified in
from OFF to ON).
Command
input
Dividing output (by 2-step alternating output)
Multi-step dividing outputs are achieved by combination of two or more ALTP instructions.
Command
input
Specify the same device
M0
Mnemonic
16-bit Instruction
3 steps ALT
ALTP
Bit device number whose output is alternated
Digit Specification
and FX PLCs. However, index modifiers (V and Z) are not available.
3U 3UC
Command input
FNC 66
D
ALTP
D
1st step
Command
input
D
FNC 66
M0
M0 D
ALTP
2nd step
D
FNC 66
M1
M1 D
ALTP
14 Handy Instruction – FNC 60 to FNC 69
Operation Condition
32-bit Instruction
Continuous
Operation
Pulse (Single)
Operation
Description
Word Devices
Special
System User Index
Unit
T C D R U \G V Z Modify K
ON
ON
ON ON
ON
ON
14.7 FNC 66 – ALT / Alternate State
Mnemonic Operation Condition
−
−
Data type
Bit
Others
Con- Real Charac-
stant Number ter String
H E " "
D D is alternated (from ON to OFF or
1
ON ON
ON
ON ON
ON
11
12
13
14
Pointer
P
15
16
17
18
19
20
411