76
EH-150/EHV Series
Section 9-1
Using the EH-SIO Unit and
Connecting with a User-
made Cable
■
Connection Diagram
Note
Settings depend on the port and communications method. Check
the communications settings given previously.
9-1-3
RS-485 Connections
RS-485 Connections
■
Connection Diagram
Refer to the previous RJ45 Modular Port diagram for the pin numbers for the
RJ45 Connector.
Hitachi PLC
EH-S10
Uint
User-made cable
PT
CPU
Link interface
Connection diagram
PT
EH-CPU104A
EH-CPU208A
EH-CPU316A
EH-CPU516
EH-CPU548
Port 2 on EH-SIO
RS-422A/485
connector
NV3W,
NV4W, or
NV3Q for RS-
422A
EHV-CPU128
EHV-CPU64
EHV-CPU32
EHV-CPU16
NV3W,
NV4W, or
NV3Q for RS-
422A
Pin No.
Signal
1
SD+
SD
−
RD
−
TERM
RD+
2
3
4
5
6
SG
To power
supply
Pin No.
Signal
1
+
-
+SD
−
SD
FG
2
3
4
5
6
+RD
−
RD
7
8
RS-422/485 Connector
on CPU Module Port
(RS-422) on Hitachi PLC
PT
Terminator setting (built-
in 120
Ω
resistance)
PT
User-made cable
Hitachi PLC
CPU
Link interface
Connection diagram
PT
EH-CPU104A
EH-CPU208A
EH-CPU316A
EH-CPU516
EH-CPU548
Port 1 on CPU
Module
NV3W, NV4W,
or NV3Q for
RS-485
EHV-CPU128
EHV-CPU64
EHV-CPU32
EHV-CPU16
CPU Unit serial
port
NV3W, NV4W,
or NV3Q for
RS-485
Pin No.
Signal
1
SG
-
SD+
SD
−
-
2
3
4
5
6
RD
−
7
8
To power
supply
RD+
-
Pin No.
Signal
1
+
-
+SD
−
SD
FG
2
3
4
5
6
+RD
−
RD
7
8
Terminator setting (built-
in 120
Ω
resistance)
RJ45 Connector on CPU
Module Port (RS-485) on
Hitachi PLC
PT
Содержание NV3Q Series
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Страница 3: ...NV Series NV3W NV4W NV3Q Programmable Terminals Produced December 2009 ...
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Страница 120: ...96 Modbus RTU Mode Temperature Controller Section 10 3 ...
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Страница 144: ...120 Revision History ...