iRZ ion fm, User Manual

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Operating mode can be set for each of the physical inputs (IN1 - IN4). There are 4 types of inputs:
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frequency;
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pulse;
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analog;
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logic.
Correct operation of all iput types, excep analog, require the following parametetrs to be configured:
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set levels for logic 0 and logic 1;
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enable/disable pull-up resistors.
Configure input type, logic 1 and 0 levels via Conf_iRZ.exe program, in Multipurpose inputs tab.
NOTE! To decrease GPRS traffic, iON FM is fitted with input readings filter: if the reading has not changed,
the device does not transmit it to server. This allows for significantly economise GPRS traffic and funds at
the user’s SIM card.
Frequency input type.
Frequency input type is intended for measuring the frequency of periodic signal, received by input, and
its subsequent transmitting to a server. The measured may also be read using control commands.
Electrical parameters of frequency input:
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form of the input signal may be of the following types: sine, rectangle, square;
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periodic signal frequency range: 0 (Hz) to 4 (kHz);
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maximum permissible voltage of input signal: 30 (V);
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recommended minimal voltage of the impulse signal: 0.5 (V);
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input pulse is determined by rising edge;
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maximal error of frequency measurement: 10%.
NOTE!
Connecting input to the frequency generator with open collector requires enabling pull-up connec-
tion to this input.
Pulse input type.
Pulse input type is intended for injecting a singular pulse or a periodic pulse. The amount of such pulses
will be counted and summarized for consecutive transmission of the resulting value to web-monitoring server.
The resulting value may be read using the corresponding control commands. Functionally, pulse input type is
a pulse counter.
Electrical parameters of the pulse input:
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pulse signal frequency range: 0 (Hz) to 4 (kHz);
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form of the input signal may be of the following types: sine, rectangle, square;
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maximum permissible voltage of input signal: 30 (V);
●
recommended minimal voltage of the impulse signal: 0.5 (V);
●
input pulse is determined by rising edge;