Endress+Hauser Proservo NMS81 Technical Information page 20

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"V1": Technical data
No. of units Maximum 10 instruments per loop
Baud rate 3 300 bit/s
Parity Selectable:
• Odd
• Even
• None
Cable • Two-wire twisted pair; screening recommended
• Two-wire unscreened
Termination resistors Not required
Topology • Serial bus
• Tree structure
Transmission distance Maximum 6 000 m (19 700 ft)
Instrument address Each transmitter has an individual bus address configured in the software of the
transmitter.
Isolation Serial communication circuit isolated from other circuits
Error on alarm Error message classified according to NAMUR NE 107
Proservo NMS81
Endress+Hauser