Advanced functions
17
A
DVANCED
FUNCTIONS
6
G E N E R A L P U R P O S E I / O
The General Purpose I/O port may be used for sensor input or similar
purposes.
Warning!
Improper connection to the General Purpose I/O port can
damage the device. Use this port only if you have experience
in the field of electronics. Do not use the port to switch heavy
loads or devices connected to the main supply.
G P I / O D B 9 P I N O U T
O U T P U T S
Optocouplers on the main PCB isolate the outputs from internal circuits.
• Maximum voltage: 30 VDC
• Maximum delivered current: 6 mA
Pin
Function
1
Ground
2
Output 1 LOAD
3
Output 2 LOAD
4
Input 1
5
Input 2
6
Output 1 supply ground
7
Output 2 supply ground
8
Ground
9
Ground
supply -
max 24VDC
LOAD
DB9: ouput x LOAD
DB9: ouput x supply ground
Basic Output Circuit