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Softing Linking Device –
Manual for Configuration, Installation and Maintenance
Hardware Installation
page 10 of 85 V1.3
The Ethernet port corresponds to the standards IEEE 802.3 100BASE-TX/10BASE-T and
supports auto negotiation.
The pin assignment corresponds to MDI (Medium Dependent Interface).
Pin
MDI Signal Pinout
(Standard Ethernet Cable)
1
TD+
2
TD-
3
RD+
4
Not used
5
Not used
6
RD-
7
Not used
8
Not used
Table 2.4-1 Ethernet Pins
2.5 Modbus
2.5.1 MODBUS TCP
The FG-110 FF is able to communicate with the HSE (High Speed Ethernet protocol of
Fieldbus Foundation) and Modbus TCP over the same Ethernet port.
2.5.2 MODBUS serial (RS232 / RS485)
The FG-110 FF provides a serial interface based on RS232.
The connection is made using a 9-pin male D-sub connector with the following pin layout:
Table 2.5-1 COM PIN Allocation
But mostly the units are connected to the Linking Device by the Interface RS485.
The FIM-110 FF offers a solution with a serial converter RS232 to RS485 (9185 see “Stahl
Manual”) of the company Stahl. For detailed information please follow the user guide of
Pin #
Connector
1
Pin #
Connector 2
Signal
Description
1
1
Reserved
Do not connect
2
3
RXD
Receive Data
3
2
TXD
Transmit Data
4
4
Reserved
Do not connect
5
5
GND
Signal Ground
6
6
Reserved
Do not connect
7
7
Reserved
Do not connect
8
8
Reserved
Do not connect
9
9
Reserved
Do not connect