Siemens HT 8 User Manual

Table 1-8 Assignment of the PROFIBUS DP interface
Connector Pin Name Type Remark




1,2 N.C. - Not connected
3 RS_DP B RS-485 differential signal
4 RTS_DP O Request To Send
5 M5EXT V 5 V external ground
6 P5EXT V 5 V external potential
7 N.C. - Not connected
8 XRS_DP B RS-485 differential signal
9 N.C. - Not connected
Ethernet RJ45 interface
Connector type: Standard RJ45 socket
Max. data transmission rate: 10/100/1000 Mbit/s
Max. cable length: 100 m
Table 1-9 Assignment of the Ethernet RJ45 interface 10/100 Mbit/s
Connector Pin Name Type Remark
/('/('

1 TxD+
O Transmit data
2 TxD-
3 RxD+ I Receive data
4/5 GND - (terminated internally with 75 Ω; not re‐
quired for data transmission)
6 RD- I Receive data
7/8 GND - (terminated internally with 75 Ω; not re‐
quired for data transmission)
Shield - - On connector housing
- Green LED
(right)
- Lights up: 10 or 100 Mbit/s
Off: No or faulty connection
- Orange LED
(left)
- Illuminated: Data exchange
Off: No data exchange
General information and networking
1.3 Connecting
Operator panel front: OP 012
Manual, 09/2016, A5E36371591B 25

Siemens HT 8 Specifications

General

Brand	Siemens
Model	HT 8
Category	Control Systems
Language	English