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Mitsubishi Electric FX5 User Manual Page 127

Melsec iq-f series.
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Precautions
When [Inverter communicating] is ON, instructions other than the instruction under execution cannot be executed.
Do not turn ON/OFF by program or engineering tool.
Inverter communication error
If FX3 Series compatible SM/SD area settings have been set, the devices turn ON if an error occurs for an inverter
communication instruction.
FX3 Series compatible
CH1
CH2
*1
SM8152
SM8153
SM8157
R: Read only
*1 Supports latch function.
After the devices above turns ON, the error code is stored in the compatible devices below.
FX3 Series compatible
CH1
CH2
SD8152
SD8157
Storing an error code is only for the first error occurrence, and it is not updated for the second error occurrence onwards.
Precautions
Do not turn ON/OFF by program or engineering tool.
Inverter communication errors are not cleared even after communication is restored to normal state.
Devices are cleared when power is turned OFFON, STOPRUN, system is reset or SM50 (Error Detection Reset
Completion) is turned ON.
IVBWR instruction error
The devices turn ON when a parameter number or set value specified in IVBWR instruction is outside the allowable range.
FX5 dedicated
CH1
CH2
CH3
SM8921
SM8931
SM8941
R: Read only
When an IVBWR instruction error is ON, the parameter number that could not be set is stored in the following corresponding
devices.
FX5 dedicated
CH1
CH2
CH3
SD8921
SD8931
SD8941
Precautions
Do not turn ON/OFF by program or engineering tool.
IVBWR communication errors are not cleared even after communication is restored to normal state.
Devices are cleared when power is turned OFFON, STOPRUN, system is reset or SM50 (Error Detection Reset
Completion) is turned ON.
Description
*1
SM8158
Turns ON when an inverter communication error occurs.
Name
Inverter communication error code
latch
FX3 Series
compatible
CH4
CH1
CH2
SM8951
SM8154
SM8159
FX3 Series
compatible
CH4
CH1
CH2
SD8951
SD8154
SD8159
Description
These devices store an error code when a communication
error is caused by an inverter communication instruction.
Description
These devices turn ON when an error occurs in IVBWR
instruction.
Name
Description
IVBWR instruction
Stores the parameter number which was not written
error parameter
by IVBWR instruction.
number
4 INVERTER COMMUNICATION
R/W
R
R/W
R
125
4.10 Related Devices
4

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