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Appendix A
A
APPENDIX A : Isolated DIO Guide
Pin
No.
Definition
Description
Pin
No.
Definition
Description
1
DI 0
DIO 0
11
DO 0
DIO 8
2
DI 1
DIO 1
12
DO 1
DIO 9
3
DI 2
DIO 2
13
DO 2
DIO 10
4
DI 3
DIO 3
14
DO 3
DIO 11
5
DI 4
DIO 4
15
DO 4
DIO 12
6
DI 5
DIO 5
16
DO 5
DIO 13
7
DI 6
DIO 6
17
DO 6
DIO 14
8
DI 7
DIO 7
18
DO 7
DIO 15
9
DI COM
NC
19
DIO_GND
DIO_GND
10
DIO_GND
DIO_GND
20
External VDC
NC
A.1 Function Description
The ECS-4700 series offers a 16-bit DIO (8-DI/ 8-DO) 20-pin terminal block
connector. Each bit of DI and DO 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:
Isolated
Isolated
DI
O
DIO
D I
PIN 1 ~ 8
DO
PIN 11 ~ 18
20
11
10
1