Other Fieldbus Repeaters

Modbus Plus(MB+) Repeater

Modbus Plus(MB+) Protocol Repeater

The Modbus Plus Repeaters are designed to be used in Modbus Plus field bus cable segments,provide a link connection between two Modbus Plus segments. The Repeater contains two electrical interface for Modbus Plus.The electrical port of the Repeater has the same network connections, specifications and restrictions as other Modbus Plus devices, and must be treated accordingly.

The Modbus Plus bridge device is powered by 24V DC voltage. A redundant feed increases operational safety.

For the Modbus plus repeater using protocol repeater transmission technology, the modules can be connect MB+ cable segments ,You require a repeater in the following situations:

--When there are more than 32 stations (including repeaters) connected to the bus

--When electrically isolated bus segments are required or

--When the maximum cable length of a segment is exceeded

6 multicolored LED indicate the current operating status


Technical Data

Voltage/power supply

Operating voltage 12 V to 30 V DC, typ. 24 V,

Current consumption typ. 120 mA@24V

Signaling contact Max .switch DC24V@2A or This email address is being protected from spambots. You need JavaScript enabled to view it.

Signal transmission

Transmission rate Modbus Plus

Retimer (Electrical port)

Pulse Width Distortion/Jitter ±10ns

Cascade modules 3

Electrical port

Input/output signal Modbus Plus

Isolate voltage >= 1500VDC

PIN assignment Modbus Plus via 9–pin “D” connector

Electromagnetic compatibility (EMC)

Limit class B (EN 55022) EN 61000-4-2

EN 61000-4-3


On power supply lines

shielded RS 485 bus lines

±2 kV (EN 61000-4-4)


Power lines,Shielded RS 485 lines

±1 kV symmetrical,±2 kV asymmetrical (EN 61000-4-5)



Ambient temperature -25 °C to +75 °C

Storage temperature 40 °C to +85 °C

Relative humidity <95 %, non-condensing

Protection class IP 40

Dimensions (W x H x D) 62 x 132 x 120 mm

Weight approx. 600 g


* You can also contact us for a quote by E-mail: sales@buenoptic.net

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