20-Ma Unit Ethernet; Overview; Structure Of The Function - Siemens SIPROTEC 5 Manual

20-mA Unit Ethernet

6.5.3
6.5.3.1

Overview

The function 20-mA unit Ether.:
•
Communicates in series with a 20-mA unit via the Slave Unit Protocol (SUP) and records the values meas-
ured by the 20-mA unit
•
Transforms the measured 20-mA values into slowly changing process tags such as temperature or gas
pressure
•
Makes the recorded process tags available to CFC, GOOSE, protocols and the device display
•
Monitors communication with the 20-mA unit
6.5.3.2

Structure of the Function

The function 20-mA unit Ether. can work only in the function group Analog units. A maximum of 4 function
instances can work simultaneously. Each instance contains 12 preconfigured channel function blocks.
The function 20-mA unit Ether. contains input and output channels which can be configured independently
of one another.
[dwstrfn2-150113-01.tif, 2, en_US]
Figure 6-33
SIPROTEC 5, Fault Recorder, Manual
C53000-G5040-C018-5, Edition 11.2017
Structure/Embedding of the Function
Function-Group Types
6.5 Function-Group Type Analog Units
173