RS485 interface extension isolated

RS485 interface extension built into the housing

The extension is built into the housing and adds an electrically isolated RS485 interface to the myDatalogEASY IoT. The extension is fed from the RS232 port supply, which can be switched via device logic. In addition to the isolated bus, a galvanically isolated 5V/50mA sensor supply is available at the 4-pin connector.

Dip-switch switch positions

Features:

Scope of delivery:

  • RS485 interface card (built into the myDatalogEASY IoT)
  • RS232 feature activation
  • 4-pin connector plug

Dip-switch switch positions

Note: Combinations of switch positions other than those specified in the table are not permitted.

S1 S2 S3 S4
Off Off Off Off No scheduling, no bias
Off Off Off On 120 Ω Termination
On On Off Off 390 Ω Bias active
On On On Off 140 Ω termination and 390 Ω bias active

Default setting

 

Product configurator

With the help of the runtime calculator, you can estimate the autonomous runtime of the application as well as the costs incurred. The actual costs and energy consumption depend on the measurement conditions, such as the reception quality and ambient temperature. Detailed information on the tariffs can be found here.

Technical data

RS485 interface extension isolated
Item no. 301401
Serial interfaces 1x RS485, galvanically isolated
Baudrate 600 - 115,200 Baud
Scheduling 120 Ω or 140 Ω via dip switch
Bias 390 Ω via dip switch
Sensor supply 5 V / 50 mA, galvanically isolated
Galvanic isolation 2,5 kVRMS (interface and sensor supply)

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