Yokogawa DA100 - Manual (Page 12)

IM DA100-01E 1-2
1.2 DA100’s System Configuration
The DA100 is a data acquisition unit which allows data logging on a personal computer of small
scale, 10-ch data logging up to 300-ch, multi-point measurements.
Measurement data can be analyzed in real-time on the PC, as the DA100 can be controlled using
communication interface.
There are two types of DA100, the DA100 stand-alone type, and the DA100 expandable type.
DA100 Stand-alone type
Being suitable for small scale data logging between 10 and 40ch, the light-weight main unit
allows an easy and quick setting up.
DA100 Expandable type
The expandable type consists of one main unit and by connecting up to six subunits (DA400/
DS600), the number of measurement points can be expanded to a maximum of 300ch. Using
dedicated twisted-pair cables between each unit, it is possible to connect up to 500 meters. Since
even measurement objects scattered over a wide area can be wired fast and with a minimum of
wiring, a flexible, extensive measurement system can be configured.
The input modules to be connected to the DA100 or DA400/DS600 are in units of 10ch and can
be selected from the following, in order to match your measurement conditions.
• Universal Input Module and DCV/TC/DI Input Module
Temperature, DC voltage, and contact signals can be measured, but cannot be connected to a
system's main unit.
• mA-input Module
This module can directly measure DC currents ranging from -20 mA to 20 mA since it contains
shunt resistors. It cannot be connected to a system's main unit.
• Power Monitor Module
This module can measure the effective voltage, effective current, active power, reactive power,
apparent power, frequency, power factor and phase angle for an AC voltage or AC current input.
It is available in either a single-phase or three-phase model. This module cannot be connected to
a system's main unit.
• Strain Input Module
This module can measure strain. It is available in either a model with built-in 120- or 350-
Ω
bridge resistors or a model with NDIS terminals where bridge resistors are connected externally.
The module cannot be connected to a system's main unit.
• Pulse input module (to be released soon)
When inputting a TTL signal or contact signal from a revolution counter or flow meter, the
number of pulses can be counted, computation can be carried out, etc..
• Digital Input Module
This module can measured contact signal, but cannot be connected to a system's main unit.
• Communication module
For transfer of setting parameters and measurement data by communication interface.
• Alarm output module
Outputs alarm signals as contact signals.
• DI/DO module
Allows output of a signal in case of alarm or failure.
• Retransmission module
This module deals with data that are measured or computed by the product, or set by a personal
computer via a communication interface. The modules convert them to 1-5 V analog voltage or 4-
20 mA analog current signals for output. The module cannot be connected to the expanable
model's main unit.
• Extender module
To provide power supply to far away input modules.