Siemens Synco 200 Basic Documentation page 86

Maximum selection in
case of several
preselections
Note
Definition and behavior
Switching on / off
Switch positions
Note
Priorities
86 / 174
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8.6.3 External preselection (IN X)
You can configure an analog input (IN X) as a preselection for the step switch. The
controller performs a maximum selection together with the internal signals.
For example, you can use this feature to implement the following function:
External control – the RLU236 provides the step switch function only.
The external signal is considered only if the controller operates in Comfort or
Economy mode.
8.6.4 Output inversion (INVERS)
You can invert the step switch's analog output. Meaning:
INVERS = NO: 0...100% load = 0...100% output
INVERS = YES: 0...100% load = 100...0% output
The same settings are possible for this analog output as for the modulating output,
AO function block.
If the controller has a binary step switch and is switched off during operation (input
D1 = Protection), the output signal behaves as follows:
INVERS = NO: 0% output
INVERS = YES: 100% output
8.6.5 Function check / wiring test
The step switch can be switched directly via the control switch during the wiring
test.
The switch has the following positions:
---
•
0...100 %
•
Settings such as INVERS, MIN POS and MAX POS are also effective during the
wiring test.
The following priorities apply to the step switch:
1 On / Off during the wiring test
2 According to the positioning signal from the sequence controller (preselection in
normal operation) or an external signal (maximum selection)
Universal Controllers RLU2...
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CE1P3101en
29.08.2008