Siemens 6MD86 - 20-Ma Unit Ethernet; Overview; Structure of the Function

20-mA Unit Ethernet
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
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.
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Figure 5-54 Structure/Embedding of the Function
5.7.3
5.7.3.1
5.7.3.2
Function-Group Types
5.7 Function-Group Type Analog Units
SIPROTEC 5, High-Voltage Bay Controller, Manual 255
C53000-G5040-C015-9, Edition 11.2017