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FREQROL Inverter Driver
GP-Pro EX Device/PLC Connection Manual
74
3B)
•
1:1 Connection
•
1:n Connection
• Please set the terminating resistor switch of the External Device to the "100
Ω
" position.
• Please set the terminating resistor switch to the "100
Ω
" position only on the last External
Device in the chain.
RDA
RDB
SDA
SDB
SG
ERA
CSA
ERB
CSB
F
G
Signal
name
1
2
3
7
5
4
8
9
6
S
h
ell
Pin
Display
side
D
-
S
u
b
9
pin
(
socket
)
S
h
ield
External
Device
side
Terminal
Block
Termination
resistance
1
00
Ω
(
1
/2W)
Display
Signal
name
SDA1
(
T
X
D1
+)
SDB1
(
T
X
D1
-)
RDA1
(
R
X
D1
+)
RDB1
(
R
X
D1
-)
SG
(
G
N
D
)
External
Device
side
Terminal
Block
External
Device
side
Terminal
Block
RDA
RDB
SDA
SDB
SG
ERA
CSA
ERB
CSB
F
G
Signal
name
1
2
3
7
5
4
8
9
6
S
h
ell
Pin
Display
side
D
-
S
u
b
9
pin
(
socket
)
Termination
resistance
1
00
Ω
(
1
/2W)
S
h
ield
S
h
ield
Display
Signal
name
SDA1
(
T
X
D1
+)
SDB1
(
T
X
D1
-)
RDA1
(
R
X
D1
+)
RDB1
(
R
X
D1
-)
SG
(
G
N
D
)
Signal
name
SDA1
(
T
X
D1
+)
SDB1
(
T
X
D1
-)
RDA1
(
R
X
D1
+)
RDB1
(
R
X
D1
-)
SG
(
G
N
D
)
SDA
2 (
T
X
D
2+)
SDB
2 (
T
X
D
2-)
RDA
2 (
R
X
D
2+)
RDB
2 (
R
X
D
2-)
SG
(
G
N
D
)