ABB S800 I/O User Manual page 65

3BSE 020 925R101
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Pin
1
2
3
4
5
6
7
8
8D' ÃAvryqiˆ†Ã8‚€€ˆvph‡v‚†ÃD‡r…shprÃA8D
Table A-4. Service Port (X4)
Designation
TD
RD
SG
RDA
TDA
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Description
Transmit Data
channel B
Receive Data
channel B
Signal Ground
Receive Data
channel A (for
debugging only)
Transmit Data
channel A (for
debugging only)
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