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FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
12 Related Data
12.4 Details of Related Devices for FX3G, FX3U and FX3UC PLCs
12.4.10 Inverter communication error occurrence step [D8153 and D8158]
These devices store the step number in which an inverter communication error has occurred.
1. Detailed contents
D8153 or D8158 stores the step number of the instruction causing an inverter communication error.
D8153 stores the step number in which an error has occurred in communication using communication port
ch1.
D8158 stores the step number in which an error has occurred in communication using communication port
ch2.
When errors that occurred in two or more instructions, D8153 or D8158 holds the step number in which the
error occurred first.
When no error has occurred, D8153 or D8158 stores "-1".
2. Cautions on use
A decimal value without the sign is stored as the step number in D8153 and D8158.
Error
code
Contents of error Inverter operation
256
Inverter sent the error code H0. Computer NAK error.
An error was included in the transfer request data from the computer beyond the
allowable number of retries.
When errors have
occurred consecutively
beyond the allowable
number of retries, inverter
is brought to an alarm
stop.
257
Inverter sent the error code H1. Parity error.
The contents are different from the specified parity.
258
Inverter sent the error code H2. Sum check error.
The sum check code in the computer is different from the sum value calculated
from the data received by the inverter.
259
Inverter sent the error code H3. Protocol error.
Syntax error is included in the data received by the inverter, and the receiving of
data was not completed within the specified time, or CR/LF does not agree with
the parameters.
260
Inverter sent the error code H4. Framing error.
The stop bit length is different from the initial set value.
261
Inverter sent the error code H5. Overrun error.
Before receiving the completed data in the inverter, the computer sent the next
set of data.
262
Inverter sent the error code H6.
Not defined currently in inverter.
263
Inverter sent the error code H7. Character error.
An unused character (other than 0 to 9, A to F and control codes) is received.
Inverter does not accept
the received data, but is
not brought to an alarm
stop.
264
Inverter sent the error code H8.
Not defined currently in inverter.
265
Inverter sent the error code H9.
Not defined currently in inverter.
266
Inverter sent the error code HA. Mode error.
A parameter was written in a mode other than computer link mode or while
inverter was operating. Inverter does not accept the received data, but is not
stopped by alarm.
Inverter does not accept
the received data, but is
not brought to an alarm
stop.
267
Inverter sent the error code HB. Instruction code error.
Non-existing instruction code was specified.
268
Inverter sent the error code HC. Data range error.
In writing a parameter or operation frequency, data outside the allowable range
was specified. Inverter does not accept the received data, but is not stopped by
alarm.
269
Inverter sent the error code HD.
Not defined currently in inverter.
270
Inverter sent the error code HE.
Not defined currently in inverter.
271
Inverter sent the error code HF.
Not defined currently in inverter.