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©Vecow ECS-9755 User Manual
Appendix A
A
APPENDIX A : Isolated DIO Guide
Pin
No.
Definition
Description
Pin
No.
Definition
Description
1
EXT_IN0
DI0
11
EXT_OUT0
DO0
2
EXT_IN1
DI1
12
EXT_OUT1
DO1
3
EXT_IN2
DI2
13
EXT_OUT2
DO2
4
EXT_IN3
DI3
14
EXT_OUT3
DO3
5
EXT_IN4
DI4
15
EXT_OUT4
DO4
6
EXT_IN5
DI5
16
EXT_OUT5
DO5
7
EXT_IN6
DI6
17
EXT_OUT6
DO6
8
EXT_IN7
DI7
18
EXT_OUT7
DO7
9
DI_COM
DI COM
19
Reserved
NC
10
EGND
DIO GND
20
E24V
External 24V DC
A.1 Function Description
The ECS-9755 offers two 16-bit DIO (8-DI/ 8-DO) 20-pin terminal block
connector. Each bit of DI and DO is equipped with a photo-coupler for isolated
protection. All IO pins are fixed by Hardware design and cannot change in/out
direction in runtime process. The definition is listed as follows: