
FREQROL Inverter Driver
GP-Pro EX Device/PLC Connection Manual
71
2E)
• 1:1 Connection
• 1:n Connection
*1 The resistance in the Display is used as the termination resistance. Set the value of the DIP Switch on the
rear of the Display as shown in the table below.
• Please set the terminating resistor switch of the External Device to the "100Ω" position.
• Please set the terminating resistor switch to the "100Ω" position only on the last External
Device in the chain.
DIP Switch No. Set Value
1OFF
2OFF
3ON
4ON
RDA
RDB
SDA
SDB
SG
ERA
CSA
ERB
CSB
Signal name
Display side
Terminal block
External Device side
Terminal Block
Shield
Termination
resistance*1
Display
Signal name
SDA1 (TXD1+)
SDB1 (TXD1-)
RDA1 (RXD1+)
RDB1 (RXD1-)
SG (GND)
External Device side
Terminal Block
External Device side
Terminal Block
Shield
Shield
RDA
RDB
SDA
SDB
SG
ERA
CSA
ERB
CSB
Signal name
Display side
Terminal block
Termination
resistance*1
Display
Signal name
SDA1 (TXD1+)
SDB1 (TXD1-)
RDA1 (RXD1+)
RDB1 (RXD1-)
SG (GND)
Signal name
SDA1 (TXD1+)
SDB1 (TXD1-)
RDA1 (RXD1+)
RDB1 (RXD1-)
SG (GND)
SDA2 (TXD2+)
SDB2 (TXD2-)
RDA2 (RXD2+)
RDB2 (RXD2-)
SG (GND)
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