ABB Relion 670 Series RES670, Technical Manual

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18.7.14.3 Function block
IEC10000286-1-en.vsd
I103POSCMD
BLOCK
POSITION
SELECT
IEC10000286 V1 EN
Figure 255: I103POSCMD function block
18.7.14.4 Signals
Table 535: I103POSCMD Input signals
Name Type Default Description
BLOCK BOOLEAN 0 Block of command
POSITION INTEGER 0 Position of controllable object
SELECT BOOLEAN 0 Select of controllable object
18.7.14.5 Settings
Table 536: I103POSCMD Non group settings (basic)
Name Values (Range) Unit Step Default Description
FunctionType 1 - 255 - 1 1 Function type
InfNo 160 - 236 - 4 160 Information number for command output
18.7.15 Operation principle
18.7.15.1 General
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
IEC 60870-5-103 protocol functionality consists of the following functions:
• Event handling
• Report of analog service values (measurements)
• Fault location
1MRK 511 365-UUS A
Section 18
Station communication
Phasor measurement unit RES670 2.1 ANSI 661
Technical manual