Step Number Of Instruction Using Communication Port [D8151 And D8156] - Mitsubishi Electric FX3U-232-BD User Manual

FX Series PLC User's Manual - Data Communication Edition
Inverter Communication

12.4.8 Step number of instruction using communication port [D8151 and D8156]

These devices store the step number of the instruction occupying the communication port.
1. Detailed contents.
D8151 or D8156 stores the step number of the inverter communication instruction using the communication
port.
D8151 stores the step number using communication port ch1.
D8156 stores the step number using communication port ch2.
2. Cautions on use
A decimal value without sign is stored as the step number in D8151 and D8156.
12.4.9 Inverter communication error code [D8152 and D8157]
These devices store an error code when a communication error is caused by an inverter communication
instruction.
1. Detailed contents
Special data registers shown below respectively store inverter communication errors, depending on each
communication port.
• D8152 stores the error code of an error in communication using communication port ch1.
• D8157 stores the error code of an error in communication using communication port ch2.
2. Error codes
The following error codes are stored.
Error
code
(DEC)
0 Normal end (no error)
1 Inverter did not give response.
Timeout error. This code interlocks with M8156. Sending from inverter was
2
aborted midway through.
3 An unspecified station gave response.
4 The sum of data sent back by the inverter did not match.
In writing or reading a parameter, an improper parameter number was specified.
5
At this time, the error code K6706 is set to D8067.
Because the port is being used for another communication type, it cannot be
6 used for communication with the inverter. At this time, the error code K6762 is
set to D8067.
A value outside the allowable range is set to the station number.
7
At this time, error code (K6706) is set to D8067.
8 Sending to the inverter was not completed within the specified time.
9 Wrong data was received from the inverter.
12.4 Details of Related Devices (FX3S, FX3G, FX3GC, FX3U, FX3UC)
Contents of error
12 Related Data
Inverter operation

Apx.A
E-147
A
B
C
D
E
F
G
H
I