18.8.15.3 Function block
GUID-031C0F49-BEBD-40FE-A33F-18F1D94BB4B0 v1
I103POSC MDV
BLOCK
POSITION
IEC15000081-2-en.vsdx
IEC15000081 V2 EN-US
Figure 350: I103POSCMDV function block
18.8.15.4 Signals
PID-6578-INPUTSIGNALS v5
Table 530: I103POSCMDV Input signals
Name Type Default Description
BLOCK BOOLEAN 0 Block of command
POSITION INTEGER 0 Position of controllable object
18.8.15.5 Settings
PID-6578-SETTINGS v6
Table 531: I103POSCMDV Non group settings (basic)
Name
Values (Range) Unit Step Default Description
FunctionType 1 - 255 - 1 1 Function type
InfNo 160 - 209 - 1 160 Information number for command output
18.8.16 Operation principle
IP14407-1 v3
18.8.16.1 General
M11874-3 v5
IEC 60870-5-103 is an unbalanced (master-slave) protocol for coded-bit serial
communication exchanging information with a control system, and with a data
transfer rate up to 38400 bit/s. In IEC terminology, a primary station is a master
and a secondary station is a slave. The communication is based on a point-to-point
principle. The master must have software that can interpret IEC 60870-5-103
communication messages.
Introduction to IEC 60870–5–103 protocol
M11874-6 v3
IEC 60870-5-103 protocol functionality consists of the following functions:
• Event handling
• Report of analog service values (measurements)
• Fault location
• Command handling
Section 18 1MRK 505 394-UEN A
Station communication
728 Line differential protection RED650 2.2 IEC
Technical manual
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