NT31C-ST143-EV3 Omron, NT31C-ST143-EV3 Datasheet - Page 136

• Manufacturer Part Number: NT31C-ST143-EV3
• Description: 5.7 8-Color Dsp,STN,Ivory,Eng
• Manufacturer: Omron

Specifications of NT31C-ST143-EV3

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

5-2-3
Connecting to the Host’s RS-422A/485 Port
Direct Connection between RS-485 Ports at Both Units
13
1
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
422A/485 Cables on page 128.
Wiring for a Memory Link Connection
Prepare the adapter cable while referring to the following diagram.
For details on handling shield wires, refer to 5-2-8 Handling the Shield on RS-
422A/485 Cables on page 128.
The connection method in which the RS-485 ports of an NT31/NT31C and a
host are connected is described here.
13
1
25
14
RS-232C/
422A/485
connector
NT31/NT31C side
25
(25-pin type)
14
Abbreviation
−
RDB (+)
SDB (+)
RSB (+)
SDA (-)
RDA (-)
RSA (-)
TRM
FG
SD
RD
RS
CS
SG
−
−
−
−
−
−
−
−
−
RS-232C/
422A/485
connector
Pin number
Connector
hood
10
11
12
13
14
15
16
23
24
25
1
2
3
4
5
6
7
8
9
−
NT31/NT31C side
(25-pin type)
Abbreviation
−
RDB (+)
SDB (+)
RSB (+)
SDA (-)
RDA (-)
RSA (-)
TRM
FG
SD
RD
RS
CS
SG
−
Shielding wire
−
−
−
−
−
−
−
−
Pin number
Connector
hood
10
11
12
13
14
15
16
23
24
25
1
2
3
4
5
6
7
8
9
−
Shielding wire
Connector
hood
Pin number
1
2
3
4
5
6
7
8
9
PLC (CPU Unit) side
(9-pin type)
Abbreviation
RDB
SDA
SDB
RDA
FG
RS
CS
−
−
−
Abbreviation
Connector
hood
RS-422A
connector
ROA
SDA
SDB
RS
CS
ROB
Host side
RS-422A
connector
Section 5-2
1
5
119
6
9