Simex MultiCon CMC-99/141, User Manual

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User Manual For - CONTROLLER/DATA RECORDER MultiCon CMC-99/141
to the heater. For this example it is the output named Out.C1 : Relay (see Fig. 7.98 ),
– Mode parameter set as below level because we want the relay to switch on when
the temperature is lower than 30°C,
– Source parameter set as Log.ch.1:”Feedback” , which returns Pt100 sensor
temperature,
–
Alarm state
parameter set as
immed. OFF
,
– for
Levels
parameter block:
•
Level mode parameter set as value ,
•
in Level parameter write 30°C ,
•
in
Hysteresis
parameter write
5°C
, the relay will switch on below 25°C and
switch off above 35°C,
– all the other parameters should be on default settings.
7.10.5.2. Application of output for IO modules
See also: Appendices 8.14. IO2, IO4, IO6, IO8 – PASSIVE CURRENT OUTPUT .
Task:
Assume that the Logical channel 1 indicates the pressure in the range 100÷500 bars,
and its result should be regenerated to the current output in the corresponding range
4÷20mA.
Solution:
For Current output configuration:
– touch the screen and press the Menu button,
– press the Device configuration button,
– enter the
Built-in outputs
menu,
– using the arrows in the top navigation bar select a current output on which we want
to generate current in a demanded range, e.g.
Out.C1 : Current ,
– Source parameter set as Logical channel 1 , which returns the pressure value in
the range 100÷500 bars.
– for Input levels parameter block:
•
in
Lower level
write
100 bar
,
•
in Upper level write 500 bar ,
– for Output levels parameter block:
•
in Lower level parameter write 4 mA ,
•
in
Upper level
parameter write
20 mA
,
•
in Alarm level parameter write 4 mA , which means that when the Logical
channel 1 is in the alarm state ( Err , Hi or Lo ), then on the current output there
will be 4 mA,
The user should remember that the Current output is passive, which means it needs to
be powered from a current loop.
Fig. 7.99
shows how to do it. The output polarization in IO
modules is irrelevant.
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