HMS Anybus AB7702, Руководство пользователя, Страница: 9 / 22

Installation 7 (20)
3.3 Connections
In this document the TIA-232/485 serial communication standards are referred to as
RS-232/485 when describing hardware, and as EIA-232/485 in the software interface.
3.3.1 Terminal Block
Fig. 5 Terminal block
Terminal block connections
Pin Label Description
24 Vin+ Power 9–24 V DC/AC
23 Vin- PE ground
22 DI:DI 2 Digital Input 2 + (10–24 VDC)
21 DI:DI 1 Digital Input 1 + (10–24 VDC)
20 DI:COM Digital Input Common -
19 NC Not used
18 NC Not used
17 RS232:RX RS-232 Receive
16 RS232:TX RS-232 Transmit
15 COM Serial common (signal ground)
14 RS-485:A RS-485 Line A
13 RS-485:B RS-485 Line B
3.3.2 D-sub Connector
The 9-pin male D-sub connector provides an RS-232 interface. The Anybus Modbus-TCP/RTU
Gateway is configured as a DTE device.
6 9
5 1 (male)
Fig. 6 D-sub connector
D-sub connector pin layout
Pin Function
1 CD (Carrier Detect)
2 Rx (Receive)
3 Tx (Transmit)
4 DTR (Data Terminal Ready)
5 GND (Signal Ground)
6 DSR (Data Set Ready)
7 RTS (Request To Send)
8 CTS (Clear To Send)
9 RI (Ring Indicator)
Anybus ® Modbus-TCP/RTU Gateway User Manual HMSI-168-77 3.0