Specifications

CHAPTER 3
INSTALLATION
3-5
DT-203X, DT-105X and DT-110X display series
In connector DB9 there is enough space to set the resistance together with the
connection.
7
4
8
1
5
6
6
DB9
Socket
DB9
Socket
PLC Omron LK202
Display
9
9
3.2.5. RS-232 Connection between DT-105/110/203X, and Omron PLC.
In a RS-232 connection the line length must not surpass 5m. It is important to use
shielded cable and to connect the screen to pin 9 in the DB9 connector.
The transmission line must be placed away from high power lines. The connector type
(plug or socket) corresponds to the cable.
2
3
5
2
3
4
9
DB9
Socket
DB9
Plug
PLC Omron
Display
5
9
3.2.6. RS-485 Connection between DT-105/110/203X, and a Siemens PLC S7-200
In a RS-485 connection the line length must not surpass 1000m, without amplifiers
It is necessary to use shielded pair cable and to connect the screen to pin 9 in the DB9
connector. The transmission lines must be placed away from high power lines.
Resistors of 120 Ohm must be set at the end of the line to ensure that the network is in
good working order.
In connector DB9 there is enough space to set the resistance together with the
connection.
7
8
3
8
9
DB9
Socket
DB9
Plug
PLC S7-200
Display