Siemens SIMATIC HMI OP3 - Page 92

15-4
Operator Panel OP3
Edition 11/99
OP3
Code
M24V
RS485 line B
RTSAS
M5V
NC
P24V
RS485 line A
NC
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
SIMATIC S7
NC
M24V
RS485 line B
RTSAS
M5V
P5V
P24V
RS485 line A
NC
2,5 m cable
Shield
Figure 15-4 Configuration of the Interconnecting Cable
15.3 Contrast Control
At the rear of the OP3, next to the symbol there is a countersunk
potentiometer screw which is turned left or right to adjust the display
contrast.
Contrast control
Figure 15-5 Contrast Control
Adjusting the
display contrast
Device Description