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3 Product Description CPU 01
Page 20 of 40 HI 800 189 E Rev. 1.01
Connection Signal Function
1 - - - - - -
2 RP 5 V decoupled with diodes
3 RxD/TxD-A Receive/send data A
4 CNTR-A Control signal A
5 DGND Data reference potential
6 VP 5 V, plus pole supply voltage
7 - - - - - -
8 RxD/TxD-B Receive/send data B
9 CNTR-B Control signal B
Table 14: Pin Assignment of the D-sub Connectors FB1 and FB2 for RS485
3.4.7.3 Pin Assignment of D-sub Connectors FB1 and FB2
with RS232 fieldbus submodule for ComUserTask
Connection Signal Function
1 - - - - - -
2 TxD Send data
3 RxD Receive data
4 - - - - - -
5 DGND Data reference potential
6 - - - - - -
7 RTS Request to send
8 - - - - - -
9 - - - - - -
Table 15: Pin Assignment of the D-sub Connectors FB1 and FB2 for RS232
3.4.7.4 Pin Assignment of D-sub Connectors FB1 and FB2
with RS422 fieldbus submodule for ComUserTask
Connection Signal Function
1 - - - - - -
2 RP +5 V decoupled with diodes
3 RxA Receive data A
4 TxA Send data A
5 DGND Data reference potential
6 VP +5 V supply voltage
7 - - - - - -
8 RxB Receive data B
9 TxB Send data B
Table 16: Pin Assignment of the D-sub Connectors FB1 and FB2 for RS422
3.4.7.5 Pin Assignment of D-sub Connectors FB1 and FB2
with fieldbus submodule for INTERBUS