Simex MultiCon CMC-99/141, Руководство пользователя

Страница: 161 / 332

User Manual For - CONTROLLER/DATA RECORDER MultiCon CMC-99/141
•
inhibit – it allows to stop pulses counting temporarily,
– Filter – sets the filter on counter inputs which allows to get rid of negative effects of
signal bounces; it has the following parameters:
•
disable
– the filter is inactive, recommended only in the situation when the
electronic input of another device is connected to the counter input,
•
10 ÷ 90 – the filter is active; setting one of the frequencies causes the fact that
input signals whose duration corresponds to half of the selected frequency, will
be considered as unwanted signal bounces and ignored. Using this option is
recommended when the contact output of another device is connected to the
counter input,
7.9.5.11. Optoizolated hourmeters modules.
The
HM
hourmeters modules developed for the MultiCon units. They allow to measure
the period of time between START and STOP signals, as well as the sum of periods.
These modules are an ideal solution to control working time of a machinery, duration of
phenomena or for maintenance purposes. The HM2 and HM4 have 2 and 4 independent
counters respectively. Each counter is equipped with 2 inputs - START/STOP and
programmable which can be set as asynchronous RESET, HOLD or used as an independent
digital input (see
Appendices 8.11. HM2, HM4 – OPTOIZOLATED HOURMETERs
MODULES ).
With the HM module the Time Format functionality of the device is related (see
Chapter
7.8.1. Logical Channels - General settings ).
The Time format is an advanced method of data presentation in the format of time.
The user can easily get a desired format by entering a "formatting string" composed of letters
and colons, for example a string: "w:d:hh:mm" lets the user display data as a number of
weeks, days, hours and minutes, separated with colons. This mechanism also allows to divide
the result into two or three independent channels. The maximum displaying precision is
1/1000 of a second. The input data must be expressed in seconds.
The hourmeters 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 – the parameter which displays the measurement unit: sec. ,
– Mode – a read only parameter which displays the measured physical quantity: Time ,
– Low Limit – the value determining the amount of pulses, below which the Lo state
will be displayed in the logical channel,
–
High Limit
– the value determining the amount of pulses, above which the
Hi
state
will be displayed in the logical channel,
– Start/Stop inp. trig. - allows to define when the device should start or stop counting,
•
high level – the device is counting time during the high value on the counting
input,
•
low level
– the device is counting time during the low value on the counting
input,
•
rising edge
– the device starts counting time when it detects a rising edge on
the input signal. The device stops counting time when it detects another rising
edge on this input.
•
falling edge – the device starts counting time when it detects a falling edge on
161