Moore Industries NET Concentrator System AOM, Руководство пользователя

Страница: 62 / 103

NET Concentrator System
®
NCS
- 62 -
Moore Industries-International, Inc.
www.miinet.com
Configuring the TIM
The TIM can be configured using the web server
contained within the Interface Module to which it is
attached. It can also be configured using the NCS
PC Configuration Software. For further details
please see the Navigating the PC Program in the
Configuration Section of this manual. To configure the
TIM, you must first mount it to the Interface Module as
described in Installing the I/O Modules .
To access real-time data using MODBUS commands
instead of the web server, see the MODBUS/TCP
Support
section in the MODBUS chapter of this
manual.
Note:
The TIM I/O module is set to factory defaults,
to use either method mentioned above to
configure with your desired parameters
Current Channel-
The TIM accepts four different
temperature inputs, and uses a separate channel for
each. Select the channel you wish to program.
Channel Disabled-
Checking this box will cause the
TIM and its associated Interface Module to ignore the
selected channel, allowing you to use less than all four
channels without receiving error messages.
Tag Name-
Assign tag names, or descriptors, to
process variables. The Process Status page will
display the data next to the respective process
variable tag. These tags can also be read by the OPC
Server and can therefore be used to access process
data in the NCS when configuring an OPC client.
Input Configuration
- This programs the type of input
that the TIM will receive. Different measurement
types require different parameters to be programmed.
When a measurement type is selected, other
parameters may become red, indicating that these
parameters must be programmed.
Input Ranging-
Allows you to either input or capture
the upper and lower ranges that you want to have
measured.
Trimming- Each channel of the TIM can be trimmed
with two data points within the selected zero and span
measurement range. Refer to Trimming section of this
manual for more information.
Ambient Temperature-
Checking this box causes the
TIM to measure the terminal temperature and causes
the attached Interface Module to scan this value from
the TIM. The temperature is stored in a MODBUS
register titled
Ambient Temperature
and cannot be
accessed through the web server. To access this
register, refer to the
MODBUS/TCP Support
section of
this manual.
Saving Configuration Settings-
If you will be using
a common configuration within your system, you can
create a configuration and save it to a file so that
you can load it into another I/O module. Refer to the
Saving Configuration Settings
section of this manual
for more information.
Broken Wire Detection-
Checking this causes
the TIM to perform continuous sensor diagnostics,
monitoring the sensor and sending the output upscale
or downscale during a failure.
PV Input On Failure- Select how your input value
reacts upon a failure. Selecting Hold Last maintains
the value last read before the failure. To display a
user-selected value, click the
Preset button and then
enter the value into the
Predefined Value
text box.
The unit displayed will depend upon the
Input Type
that you have chosen.
Input Scaling- Input Scaling allows you to take the
input and convert it to a different range. For example,
you take a channel with a 0-1000°C range and scale it
to 0-100°C; now when the input is 734°C, it is relayed
to the Interface Module as 73.4°C.
Custom Curve-
The Custom Curve box allows you
to setup a custom linearization table of up to 128
points that will tell the TIM what value to output when
a certain input is received. Refer to the
Custom Curve
section of this manual for more information.
Custom Engineering Units-
The I/O configuration
web pages allow you to customize the process
variable engineering units (EGU). The data can then
be viewed on the Process Status page with the correct
units.