Siemens SIMATIC PC 670 Equipment Manual page 154

Hardware Information
Assignment of display to display select pins
Automatic configuration of one of 15 possible displays is performed by means of
the Display Select inputs. The Display Select inputs have pull-up resistors – in
other words, if these inputs are not connected, they go to High. The input has to be
connected to GND for them to go Low.
Pin No. LCD_SEL3 LCD_SEL2 LCD_SEL1 LCD_SEL0 Display type
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
7-22
Low Low
Low Low
Low Low
Low Low
Low High
Low High
Low High
Low High
High Low
High Low
High Low
High Low
High High
High High
High High
High High
Low Low reserved
Low High reserved
High Low reserved
High High reserved
Low Low 640 x 480 (VGA), TFT, 18
bit
Low High reserved
High Low 1024 x 768 (XGA), TFT,
18 bit
High High 800 x 600 (SVGA), TFT,
18 bit
Low Low reserved
Low High reserved
High Low reserved
High High reserved
Low Low reserved
Low High reserved
High Low reserved
High High No display /
DDC selected display
Panel PC 670 Computing Unit, Equipment Manual
Release 04/02