Fnc155 - Abs / Absolute Current Value Read - Mitsubishi Electric MELSEC FX3U Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
20.4 FNC155 – ABS / Absolute Current Value Read
Outline
This instruction reads the absolute position (ABS) data when the Mitsubishi servo amplifier (equipped with the
absolute position detection function) MR-H, MR-J2(S), or MR-J3 is connected. The data is converted into a
pulse when being read.
1. Instruction format
FNC 155
D ABS
2. Set data
Operand type
S
D
1
D
2
3. Applicable devices
Bit Devices
Oper-
and System User
Type
X Y M T C S D .b KnX KnY KnM KnS T C D R U \G
S
D
1
1
D
2
1: Specify a transistor output.
2: "D .b" is available only in FX
3: This function is supported only in FX
Explanation of function and operation
Command
input
FNC155
DABS
→ For explanation of the instruction, refer to the Positioning Control Edition.
Mnemonic
16-bit Instruction
−
Head device number inputting absolute (ABS) data output signal sent from servo
amplifier
Three points are occupied from
Head device number outputting absolute (ABS) data control signal to servo
amplifier
Three points are occupied from
Device number storing absolute (ABS) data (32-bit value)
Digit Specification
2
2
and FX
3U
/FX
3U
S D D
1 2
20 Positioning Control – FNC150 to FNC159
20.4 FNC155 – ABS / Absolute Current Value Read
Operation Condition
32-bit Instruction
13 steps
Description
S .
.
D
1
Word Devices
Special
System User
Unit
V Z Modify K H
3
PLCs. However, index modifiers (V and Z) are not available.
3UC
PLCs.
3UC
Mnemonic Operation Condition
Continuous
DABS
Operation
Data type
Bit
32-bit binary
Others
Con- Real Charac-
Index
stant Number ter String
E " "
11
12
13
14
15
16
Pointer
P
17
18
19
20
577