Modbus/Bacnet Setup - Siemens SITRANS FST020 IP65 NEMA 4X Betriebsanleitung

A.2.5

ModBus/BACnet Setup

Introduction
Enter the FST020 configuration mode using either the display panel controls on the flow
meter or via an RS-232 interface. The following configuration procedures are detailed in the
programming section of the standard FST020 Operating Instructions.
BACnet
Select
[Meter Facilities] >>RS-485 Setup >>Protocol:
Under BACnet Protocol enter the following:
1. Baud Rate:
2. Address:
3. Device Number:
4. Network Number:
5. Device Name:
ModBus
Select
[Meter Facilities] >>RS-485 Setup >>Protocol:
Under ModBus Protocol enter the following:
1. Baud Rate:
2. Parity: None,
3. Word Format:
4. Address:
RS-485 Wiring
Use a recommended cable for RS-485 wiring such as Belden 9842 or Belden 3106. The two
recommended BACnet routers for use with the FST020 are:
● Contemporary Controls BASRTLX-B High Performance BACnet router
● MBS GmbH UBR-01 Universal BACnet Router
FST020 IP65 NEMA 4X Quick Start
Operating Instructions, 08/2014, A5E03086489-AJ
300, 1200, 2400, 4800, 9600, 38,00 (9600 is default)
1-254
(devices on each RS-485 network should be limited for best
communication update times e.g. <10)
1- 4194300
1-65530
xxxxxxxxxxxxxxx
300, 1200, 2400, 4800, 9600, 38,00 (9600 is default)
Odd, Even
Normal, Reversed
1-254
(devices on each RS-485 network should be limited for best
communication update times e.g. <10)
BACnet
(must be unique system wide)
(must be unique system wide)
up to 15 ASCII characters)
Modbus
(None is default)
(Normal is default)
A.2 BACnet/ModBus Communications
Appendix
53