Signals And Signal Management - ABB RELION REX640 Engineering Manual

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REX640
Engineering Manual
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Figure 42: Application Configuration: function block overview
1 Connections
2 User-defined function block name
3 Function block, selected (red)
4 Function block name
5 Function block, locked
6 Hardware, binary output channel
7 Hardware, programmable LED
8 Hardware, binary input channel
9 Hardware, analog input channel
10 User-defined signal name
11 User-defined input variable
12 Execution order
13 Cycle time
14 Instance number

Signals and signal management

The function block has a set of input and output signals. The placement of function
block signals is from left to right. Input signals are placed on the left and output signals
on the right.
Function blocks can contain more signals than needed in an application part. Unused
signals can be hidden to get a clear picture.
Signals are located up and down on both sides of the middle position. When there is
space left, some signals may be moved up or down for better visibility and connection
routing.
Protection and control engineering
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Section 5
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