109
Modbus Slave (RTU Mode)
Section 11-1
Connection diagram
PT
NV3W, NV4W, or
NV3Q for RS-422A
NV3W, NV4W, or
NV3Q for RS-485
1
2
3
4
5
6
7
8
Pin No.
+
−
NC (or FG)
+SD
−
SD
+RD
−
RD
E
Signal
+SD
−
SD
+RD
−
RD
Signal
PLC
(Modbus-RTU Master)
PT (Modbus-RTU Slave)
To power
supply
Connect.
RS-422A Connections
Signal
+
−
1
2
3
4
5
6
7
8
Pin No.
+
−
NC (or FG)
+SD
−
SD
+RD
−
RD
E
Signal
PLC
(Modbus-RTU Master)
PT (Modbus-RTU Slave)
To power
supply
Connect.
Terminating resistance
120
Ω
RS-485
1:1 Connections
Summary of Contents for NV3Q Series
Page 1: ...Cat No V105 E1 02 Programmable Terminals NV Series NV3W NV4W NV3Q HOST CONNECTION MANUAL ...
Page 2: ......
Page 3: ...NV Series NV3W NV4W NV3Q Programmable Terminals Produced December 2009 ...
Page 4: ...iv ...
Page 6: ...vi ...
Page 16: ...xvi ...
Page 20: ...xx ...
Page 68: ...44 S7 200 Series Section 5 1 ...
Page 69: ...45 SECTION 6 Connecting to LG PLCs 6 1 MASKER K Cnet Series 46 6 1 1 Connection Method 46 ...
Page 72: ...48 MASKER K Cnet Series Section 6 1 ...
Page 76: ...52 FA M3 Series Section 7 1 ...
Page 110: ...86 Web Controller Series Section 9 3 ...
Page 120: ...96 Modbus RTU Mode Temperature Controller Section 10 3 ...
Page 142: ...118 Modbus Connections Section 12 5 ...
Page 144: ...120 Revision History ...