• between physical IO signals and function blocks.
• for the GOOSE engineering.
Figure 43: SMT: Operation principles
A binary input channel can be connected to one or several function block inputs,
see Figure 44. If several binary inputs are connected to the same function block in
SMT, the connection will appear as glue logic in SMT and ACT, see
Figure 45.
IEC09000721 V2 EN-US
Figure 44: SMT Connection between binary input channels to binary input
signals
IEC17000045 V1 EN-US
Figure 45: SMT connection
A function block output can be connected to one or several binary output channels,
see
Figure 46. A binary output channel can only be activated from one function
block output, if it should be activated from more than one function block output,
glue logic has to be used. Glue logic means inserting a logical gate (OR and AND
blocks) between the function blocks and the binary output channel. This can be
engineered in SMT.
Section 6 1MRK 511 398-UEN C
Protection and control engineering
80 670 series 2.2 IEC
Engineering manual
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