Simex MultiCon CMC-99/141, Руководство пользователя

Страница: 154 / 332

User Manual For - CONTROLLER/DATA RECORDER MultiCon CMC-99/141
The digital inputs parameters are:
– Name – each built-in input already has a name given by the device and the user
cannot change it, for the description of the Name parameter see Fig. 7.81 ,
– Mode – defines the input voltage ranges (TTL: „ 0 " for 0÷0.8V; „ 1 " for 2÷5,5V and
HTL: „
0
" for 0÷4.2V; „
1
" for 11.5÷30V),
–
Filter time
– defines the minimal time that has to elapse from the last input state
change, if this change wants to be noticed; Each input has the possibility to set its
own Filter time, even if this input is a part of another, a different set of this parameter
does not disturb their work,
7.9.5.3. Isolated current inputs module
The IS modules are equipped with six isolated current inputs with different ground
potentials, see
Appendices 8.4. IS6 – Isolated current inputs module
.
The current inputs parameters are:
– Name – each built-in input already has a name given by the device and the user
cannot change it, for the description of the Name parameter see Fig. 7.81 ,
– Unit – parameter which displays the measurement unit - mA ,
– Mode – defines the measurement range,
–
Low limit
– defines the measurement level below which the
Lo
state will be
displayed in the logical channel,
–
High limit
– defines the measurement level above which the
Hi
state will be
displayed in the logical channel,
7.9.5.4. Analogue flowmeter modules
The FI modules are equipped with two or four analogue flowmeters and the same
number of current inputs, see
Appendices 8.5. FI2. FI4, FT2, FT4 – FLOWMETER
MODULES
. Analogue flowmeters are used to liquids, gases and bulk materials flow
measurement, based on the measured sensor current and calculating the total flow in a
selected channel. Each flow channel is equipped with
IN[n] input and common ground GND .
All analogue channels are galvanically separated from the device.
The user can, thanks to the Scaling parameter in the Logical channel, see chapter
7.8.1. Logical Channels - General settings
, interpret the measured current by the device at
its discretion, which allows to cooperate with any kind of analogue sensors.
Current inputs are used for the current measurement in typical ranges (0÷20 mA;
4÷20 mA) and to facilitate their connection, they are grouped and they have a common
ground, but it is isolated from the supply voltage and other modules.
The analogue flowmeter parameters are:
– Name – each built-in input already has a name given by the device and the user
cannot change it, for the description of the Name parameter see Fig. 7.81 ,
– Unit – parameter which displays the measurement unit - mA ,
–
Base unit
– defines the unit which is used by the totalizer (for example when the flow
measurement unit is m 3 /s, the base unit is m 3 ),
–
Mode
– defines the current range of a selected input (0÷20mA, 4÷20mA) and the
time base which is used during the measurement (pulses per second, pulses per
minute, pulses per hour),
– Low limit – the value which determines the measured current, below which the Lo
154