E-150
FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
12 Related Data
12.4 Details of Related Devices (FX3S, FX3G, FX3GC, FX3U, FX3UC)
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.
12.4.11 IVBWR instruction error parameter number [D8154 and D8159]
(only in FX3U and FX3UC PLCs)
These devices store the parameter number in which an error has occurred when IVBWR instruction error flag
"M8154 or M8159" turns ON.
1. Detailed contents
D8154 or D8159 stores the parameter number which was not written by IVBWR instruction.
D8154 stores the parameter number which was not written in communication using communication port ch1.
D8159 stores the parameter number which was not written in communication using communication port ch2.
When errors that occurred in two or more IVBWR instructions, D8154 or D8159 holds the parameter number
in which the error occurred first.
12.4.12 Operation mode display [D8419 and D8439]
These devices store the communication type being used.
1. Detailed contents
These devices store the code of the communication type currently being used in the communication port.
When communication port ch1 is used, D8419 stores the communication type.
When communication port ch2 is used, D8439 stores the communication type.
The table below shows the contents of the communication type codes.
Code Description
0 Programming communication
1 PP modem mode
2 Protocol dedicated to computer link
3 N:N Network
4 RS instruction
5 RS2 instruction
6 Parallel link
7 Inverter instruction
8 Variable analog potentiometer expansion board is used.
9 MODBUS communication
10 CF-ADP
11 ENET-ADP
12 Input/output expansion board is used.
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