KROHNE OPTISONIC 6400, Руководство пользователя

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ELECTRICAL CONNECTIONS
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OPTISONIC 6400
www.krohne.com 08/2011 - 4000972602 - MA OPTISONIC 6400 R02 en
4.8 I/O configuration
Detailed setup parameters for each I/O port can be set in the measurement menu under setup.
Each port should be regarded as independent with its own set of parameters. For more details
on parameters for each port, refer to
Menu description
on page 51. The default parameters for a
port can be wrong for your application.
A port must be turned on first before any parameters can be set. To ensure that the port is on,
we recommend that after turning the port on, you press the "Measure" button and then return
using the "Menu" button to continue setting parameters or simulate output.
Current output
Current output Current output
Current output
The main setting for this is the measurement parameter according to which the mA output will
be given and the range for 0% (4 mA) and 100% (20 mA).
Current input Current input Current input Current input
There are 2 current inputs, A and B. The current inputs are meant for temperature
measurement. The main setting is the range of the temperature measurement. This is the
temperature for 0% scale (= 4 mA) and for 100% (= 20 mA).
Status output Status output Status output Status output
The status output can be used as outputting the status of the device, e.g. Error in device,
Application error or other. The status output can also be used as a limit switch. It can be
programmed to switch when a measured parameter exceeds a preset value. To achieve the right
function a number of parameters can be set. The most important ones are the threshold and
hysteresis settings. The threshold is the limit setting, the hysteresis is the change required
before the limit event can be logged again.
Example:
Threshold is set to 10 m
3
/h, hysteresis set to 1 m
3
/h. An event will be logged if the flow exceeds
10 m
3
/h. An other event can only be logged after the value has gone under 10 - 1 = 9 m
3
/h.
"Polarity"
If the polarity stands on "Normal" the polarity of the parameter is regarded.
If the polarity stands on "Absolute value" the direction of flow is not regarded and events will be
logged at for example both positive and negative values.
Pulse / frequency output Pulse / frequency output Pulse / frequency output Pulse / frequency output
A measured value can be output to a pulse frequency output. For the frequency output the
frequency at full scale is set. For the pulse output the volume per pulse is set.
I/O simulation
I/O simulation I/O simulation
I/O simulation
The I/O can also be simulated. This means that a value is set manually. Before simulation of an
I/O the following must be done:
• Switch on the I/O first
• Go to the measurement mode to activate the I/O option that was switched on.
• Simulate the required value in the "Simulation" menu.