IDL 101
SYSTEM DESCRIPTION
HB_IDL101_E_V222.doc
9
Gantner Instruments Test & Measurement GmbH
2. SYSTEM DESCRIPTION
2.1. System Overview
The
Datalogger IDL 101
is part of a complete system for the distributed recording and processing of sensor signals
and digital status information. The general term for this system of
Intelligent Sensor Modules
is
"ISM".
Several system variants of the
Intelligent Sensor Modules ISM
are available for the various applications. Basically these
variants are distinguished by the number of their digital and analog inputs and outputs, by the number of configurable
sensor variables, by their display options and operating variants and by the number of arithmetic functions. Thus there
are two series of devices at the moment:
The modules of the series
"100",
where the
ISM 111
,
ISM 112, IDL 100
and
IDL 101
belong to, are free configurable,
multi-variable sensor modules.
2.2. Range of Application
The most varying measurement tasks can easily be solved by means of the different analog inputs and in combination
with the force output, which provides the local power supply for the transducers. Some typical applications are e.g.
measurement of temperature via resistance pyrometers or thermo couples, pressure measuring by means of wire
strain gauges, or position measuring and weight measurement by displacement transducers and force transducers.
With these applications the
Datalogger IDL 101
supports measuring methods with 2- and 4-wire technique. With
measurements of temperature via thermocouples you can also work with an internal cold junction compensation
(referred to terminals) in addition to the external cold junction compensation. The preparation of signals required in
accordance with the sensors used, such as amplification, linearization, offset correction etc. can be adjusted
individually per software. An external amplifier is not required.
The 16 digital signal in-/outputs can be individually configured as inputs and/or outputs.
The digital signal inputs can be used, among other things, to connect switches, approximation initiators, digit emitters
and oscillators. Thus status indications can be collected and tasks like e.g. position measuring, displacement
measurements, angular measurements, frequency measurements and timings can be carried out.
Status signals and alarm messages can be output at the digital in-/outputs if they are configured as outputs. These
signals can be used to control indication devices like lamps or sound generators or they can be used for further
processing.
All data can be transmitted via the integrated RS485 communication interface to an overriding control (PLC) or to a
computer (PC). Up to 127 modules can be connected with the two-wire line over distances of several 100 m (328 ft).
At the same time the communication interface serves the purpose of centrally programming and configuring the
Datalogger IDL 101
for the concrete application via bus from a PC.
With an RS 232 interface either a point to point connection over 20 m is possible only but on the other hand all
functions of the RS-485 interface are available.
A corresponding
Configuration Software ICP 100
, executable on usual commercial PCs under Windows™, is part of the
ISM
-system.
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