Gas- and Steam Flowcomputer
DigiFlow 515
Operating Manual
34
10.3.5 Network communications
During the network communications several sets are connected about a twisted pair cable and mentioned
about addresses. Up to 32 instruments can be connected to a common bus using the RS485 interface. Every
set gets its own address about which it can be mentioned by the control computers, e.g. process control
computers or PLC. The Host distributes an address and activates the corresponding set with it. The data
interchange is controlled between control computer and instrument about the software protocol.
Host
Computer
Termination
1
32
RS 485
Ω
120
DigiFlow 515
DigiFlow 515
Fig. 15: Wiring of the network
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