Mitsubishi Electric FX3U-232-BD - Related Device List (FX 3 S, FX 3 G, FX 3 GC, FX 3 U, FX 3 UC )

E-144
FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
12 Related Data
12.3 Related Device List (FX3S, FX3G, FX3GC, FX3U, FX3UC)
12.3 Related Device List (FX3S, FX3G, FX3GC, FX3U, FX3UC)
The tables below show special auxiliary relays and special data registers used in inverter communication
(FNC270 (IVCK) to FNC275 (IVMC)).
The FX
3G PLC (14-point, 24-point type) and FX3S PLC does not support ch2.
1. Bit devices
R: Read only (used as a contact in program)
*1. Cleared when PLC power supply is turned from OFF to ON.
*2. Cleared when the PLC mode is changed from STOP to RUN.
*3. The IVBWR instruction is supported only in FX
3U and FX3UC PLCs.
2. Word devices
R: Read only
W: Write only
R/W: Read or Write
*4. Cleared when PLC power supply is turned from OFF to ON.
*5. Cleared when the PLC mode is changed from STOP to RUN.
*6. The IVBWR instruction is supported only in FX
3U and FX3UC PLCs.
*7. Updated only for the first error occurrence, and not for the second error occurrence or later.
Device No.
Name Description R/W
ch1 ch2
M8029 Instruction execution complete
Turns ON when the execution of inverter
communication instruction is completed, and remains
ON for 1 scan.
Turns ON also when the execution of instruction is
completed if inverter communication error flag
(M8152 or M8157) turns ON.
R
M8063 M8438
Serial communication error
*1
Turns ON when an error occurs in any type of
communication.
R
M8151 M8156 Inverter communicating
Remains ON while inverter communication is being
executed.
R
M8152 M8157
Inverter communication error
*2
Turns ON when an error occurs during
communication with an inverter.
R
M8153 M8158
Inverter communication error latch
*2
Turns ON when an error occurs during
communication with an inverter.
R
M8154 M8159
IVBWR instruction error
*2, *3
Turns ON when an error is caused by IVBWR
instruction.
R
Device No.
Name Description R/W
ch1 ch2
D8063 D8438
Error code for serial communication
*4
Stores a communication error code. R
D8150 D8155
Inverter communication response
waiting time
*4
Sets the response wait time of inverter
communication.
R/W
D8151 D8156
Step number of instruction executing
inverter communication
Stores the step number of an instruction executing
inverter communication.
R
D8152 D8157
Error code for inverter
communication
*5
Stores an inverter communication error code. R
D8153 D8158
Inverter communication error
occurring step latch
*5
Latches a step number in which an inverter
communication error has occurred.
*7
R
D8154 D8159
Error parameter number of IVBWR
instruction
*5*6
Stores a parameter number in which an IVBWR
instruction error has occurred.
R
D8419 D8439 Operation mode display Stores the communication type being used. R