User Manual For - CONTROLLER/DATA RECORDER MultiCon CMC-99/141
–
Unit
– defined permanently, it occurs only for the Current output,
–
Source
– this parameter contains a Logical channels list where the selected logical
channel will be a data source for this built-in output, data from this source is
calculated according to the parameters gathered in the the
Input levels
and
Output
levels
blocks,
–
Input levels
parameter block - determines the range of a data source for this built-in
output, this block has the following parameters:
•
Lower level
and
Upper level
- these parameters limit the range of the input
signal selected in the
Source
parameter, below this range the input signal will
have a
Lower level
value and above this range the signal will have an
Upper
level
value,
–
Output levels
parameter block - determines the range of an output value, this block
has the following parameters:
•
Lower level
and
Upper level
- these parameters limit the range of the output
signal, below this range the input signal will have a
Lower level
value and
above this range the signal will have an
Upper level
value, the relationship
between Lower and Upper levels is linear and it is limited by a defined range,
see
•
Alarm level
– this parameter defines the output value, when an alarm state
appears, but with maintaining a hardware output limitation (
3÷22mA
). An alarm
state is when the source logical channel returns
-Err-
or the state of exceeding
range: the low
-Lo-
state and high
-Hi-
state.
Lower level
and
Upper level
parameter describes the transfer equation (linear) - see
Lower level
of the output defines the current which can be generated when the
value of the input signal equals the
Lower level
.
Upper level
of the output defines the current
which can be generated when the value of the input signal equals the
Upper level
.
Fig. 7.96. Input (red)-output (blue) characteristic of signal in
Current output
module
172
-4 -2 0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
0
5
10
15
20
25
30
Input value
O
u
tp
u
t v
a
lu
e
Upper level
Input levels
Lower level
Upper level
Output levels
Lower level