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Wago IO System - Fieldbus Couplers

Wago Fieldbus Coupler - PROFIBUS DP 1.5 Mbaud
Wago 750-331
Part Number Standard Conformity Marking Approvals
Add part number 750-331 to your Quote. 750-331 EN 50170 CE cULus,
PROFIBUS DP FIELDBUS COUPLER 1,5 MBaud LWL-CONNECTION CARRIER RAIL DIN 35 CAGE CLAMP CONNECTION
This buscoupler allows connection of the WAGO-I/O-SYSTEM as a slave to the PROFIBUS DP fieldbus.

The buscoupler is capable of supporting all bus modules. The buscoupler automatically configures, creating a local process image which may include analog, digital or specialty modules. Analog and specialty module data is sent via words and/or bytes, digital data is sent bit by bit.

The local process image is divided into two data zones containing the data received and the data to be sent. The process data can be sent via the PROFIBUS DP fieldbus to the PLC, PC or NC for further processing, and received from the field via PROFIBUS DP.

The data of the analog modules is stored in the process image which is created automatically according to the order in which the modules are connected to the buscoupler. The bits of the digital modules are sent byte by byte and added to the analog data. If the amount of digital information exceeds 8 bits, the buscoupler automatically starts with a new byte.

For the operation of a PROFIBUS DP coupler with fiber optic cable connection, an interface module is also necessary to transfer RS 485 on an fiber optic ring. A subring can contain up to 10 other fiber optic modules. The baud rate is set via two DIP switches on the buscoupler. Note: GSD files required
Technical Information
Characteristic Value
No. of I/O- Modules in subring 10
Transmission medium APF 1000?m
Max. length of fieldbus segment 1 m ... 25 m
Topology subring, single faser ring
Baud rate 93.75 kBaud ... 1500 kbaud
Buscoupler connection HP Simplex LWL-plug is included
UL 508 E175199, UL 508 (applied for)
Standard EN 50170
Conformity marking CE
Max. no. of I/O modules 64
Max. fieldbus input image (Byte) 128 Byte
Max. fieldbus output image (Byte) 128 Byte
Configuration via PC or PLC
Voltage supply DC 24 V (-15% / + 20%)
Input current (max) 500 mA
Efficiency of the power supply 87%
Internal current consumption 350 mA
Total current for the I/O modules 1650 mA
Isolation 500 V system / supply
Voltage via power jumper contacts (max) DC 24 V (-15% / + 20%)
Characteristic Value
Current via power jumper contacts (max) DC 10 A
Operating temperature 0 °C ... + 55 °C
Storage temperature -25 °C ... +85 °C
Relative air humidity 95%
Vibration resistance acc. IEC 60068-
Shock resistance acc. IEC 60068-
Degree of protection IP 20
EMC immunity to interference acc. EN 50082-
EMC emission of interference acc. EN 50081-
Cross section from [mm²] 0.08 mm²
Cross section to [mm²] 2.5 mm²
Cross section from [AWG] 28 AWG
Cross section to [AWG] 14 AWG
Voltage CSA 24 V
Color light gray
Height 65 mm
Height 2.56 in
Width 51 mm
Width 2.008 in
Depth 100 mm
Depth 3.937 in
Strip length from 8 mm
Strip length to 9 mm
Strip length 0.33 in
Weight 187 g