Simex multicon cmc-141, User Manual

Page: 164 / 300

User Manual For - CONTROLLER/DATA RECORDER MultiCon CMC-99/141
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 Logical channel 1 indicates pressure in range 100÷500 bars, and its result
should be regenerated to current output in corresponding range 4÷20mA.
Solution:
For Current output configuration:
– touch 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 demanded range, e.g.
Out.C1 : Current
,
– Source parameter set as Logical channel 1 , which returns pressure value in range
100÷500 bars.
– for Input levels parameter block:
•
in Lower level write 100 bars ,
•
in
Upper level
write
500 bars
,
– 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 Logical channel 1
will be in alarm state ( Err , Hi or Lo ), then on current output will be 4 mA,
User should remember that Current output is passive, which means it needs to be powered
from current loop.
Fig. 8.31
Is showing how to do it. Output polarization in IO modules is
irrelevant.
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