5
Functional description
Page 78
gas-lab
Q1
This is the last subordinate menu of the
Monitoring
module:
Switches (Change of switch outputs)
The task of the
Switch
menu is to display the status of the
Switches
.
A switch is a message with a preset status (
on
or
off
), which can be changed
manually, i.e. via the operator panel of the device.
Switch
-type messages are
routed to digital outputs (cf. Chapter 5.4.1) to trigger switching operations of any
kind from the
gas-net
device.
Three switches are available (
Switch 1
to
Switch
3
).
To change the status of a
switch you need to invoke the
Switches
menu, which indicates the current status
of each switch. Select the switch the status of which you would like to change
and change into the edit mode. Afterwards, you may select the other switching
status and confirm via
OK
. Changing a switch status is subject to the user lock.
Note:
Message outputs may be parameterised in such a way that they invert the
output signal during operation. Please consider that this setting also applies to
the output of switches.
Note:
The
Switches
menu offers with
Revision 1
and
Revision 2
two additional
switching options. However, the
gas-net
Q1 does not use these options.
5.4
System
module
5.4.1 Functions
The
System
module comprises all basic functionalities of the
gas-net
device.
Inputs
One such basic functionality of the
System
module is the processing of the input
information and the transmission of this information to other modules. The
availability of input channels depends on the process board equipment of each
individual device. A Q1 always contains at least one LMFA7 board for the
connection of the sensor system. Besides that, there are further process boards
providing input channels (see Chapter 7.2.2).
The
System
module’s display offers a special menu for viewing the source,
source value and final value of the input signal on the device display (see
Chapter 5.4.2).