NOVUS FieldLogger Register - Manual (Page 2)

FieldLogger Register
NOVUS AUTOMATION 2/8
ALARMS
The logger has two alarms (Alarm 1 and Alarm 2) that work
independently. Each alarm has a setpoint that defines the triggering
point. They can act as Low alarm or High alarm.
Low alarms are triggered (turn on an output) when the value read by
the input channel is below the setpoint value. The High alarm is
triggered when the value measured is above the setpoint value.
Alarm outputs can be associated to ALM1 (relay 1) and ALM2 (relay
2). The same alarm can be associated to both outputs.
Such settings must be defined for each of the eight input channels.
SETUP
It is necessary to configure the logger before starting operation. It is
necessary to define the working mode assigning values to a series of
parameters. The register is provided with the Configurator software.
It provides the parameters that define how the logger will work.
The software is supplied in CD and is also available for download
from our website. The installation on the user’s PC is performed
through the FL_Setup.exe application.
MINIMUM REQUIREMENTS
To obtain a good performance of the Configurator software, the PC
must support the following requirements:
♦ Pentium III (or equivalent) or higher.
♦ Windows 98® or higher.
♦ A free serial port to support the communication with the register.
The system will perform better in computers with higher
specifications. A RS485 (serial or USB) converter will be required.
RUNNING THE LOGGER
Before running the Configurator the logger must be connected to the
computer. Use the free serial port, a RS232 / RS485 or USB / RS485
converter and suitable cables for the connection.
Figure 1 – Overview of the communication system
Note: The logger basic configuration is factory set (communication
address 1, baud rate 9600, no parity, etc). The first configuration
must be accomplished in a point-to-point connection with the
computer. After it is configured with a specific communication
address, among other parameters, it can be installed in a
communication network together with other devices.
When you try to run the Configurator software there is an attempt of
immediate communication with the connected logger. If
communication is successful, the Configurator is fully loaded and the
logger configuration is read and displayed. Settings are then allowed
to be changed.
In case there is a communication fault, only the communication
screen is loaded. It displays the communication parameters used in
communication attempts. Selected serial port, baud rate, address
and parity.
For a new communication attempt, the user must:
1- Check connections;
2- Check if the serial port displayed in the communication screen is
the same as the selected one;
3- Check if the serial port selected is really free in the computer;
After checking those items, press Search in the Automatic Search
(valid only for a point-to-point connection). If communication is
successful, the Configurator software is fully loaded.
USING THE LOGGER
When the logger and PC are connected, the Configurator is fully
loaded. Four screens are available: Communication, Channels,
Acquisitions and Diagnosis; which can be selected in the upper
tabs.
CHANNELS SCREEN
In the channels selection screen, the user defines features for each
channel, such as: input type, alarms, scale etc. Functions displayed
are:
Figure 2 – Channels screen
Title – Defines a name for the logger (up to 16 characters).
Channel selection – Selects the channel to be configured.
Information presented/defined in the remaining fields for this screen
are related to the channel selected. Define channels that will remain
active or enabled while the logger is operating in this field. It is also
possible to assign names to the input channels (up to 8 characters).
Input Type – Defines the input type for the channel selected in
Channel Selection. Options are displayed in Table 01.
Measurement Unit – Defines the measurement unit to be used. For
temperature sensor input, options are ºC or ºF. For 4-20 mA and 0-
50 mV inputs it is possible to write the required unit.
Scale – For 4-20 mA and 0-50 mV input types it makes possible to
make an indication scale, with the upper and lower indication limits.
For the other input types, the logger use a preset scale.
Decimal – It defines the number of decimal points to be displayed in
scales configured for channels with 4-20 mA and 0-50 mV inputs.
Decimal point – When the channel is configured as thermocouple, it
is possible to choose how values will be displayed: with or without
the decimal point.
ALM1/ALM2 – It makes possible to define if ALM1 and ALM2 will be
used as Alarm or Digital Output. As Alarm, it is triggered as defined
in Alarm 1 and Alarm 2. In Digital Output, triggering takes place only
through serial communication commands (Preset Single Coil).
Alarm 1/Alarm 2 – After the alarm outputs are defined, the user
defines alarm Set Points in these fields; as well as the working mode
as Low or High. It also defines which output will be connected to the
alarm.
The association between an output and alarms 1 and 2 is not
required, but the alarm activities will be indicated in the Holding
Register 0008, and will be available to be read through serial
communication.