7. Internal Web pages
Issue 06/15 Publication PUB059-002-00 113 of 136
7.6 Setting Up the Master station Configuration Using the Web Pages
This section describes some of the settings required to be made in the master station to be able to
correctly commission the Pakscan system.
In order to set up the system by using the web pages, it is necessary to access the system from a
computer. This can either be directly connected, as described earlier, or via an Internet connection.
Once the computer is connected, it is necessary to log in to the system at Administrator level using the
correct password. Systems are shipped with a default administrator username of admin and password
of admin. See section 7.5.1 for details of the log in procedure.
Select Admin to go to the start of the system set up pages. See section 7.5.15 onwards for details of
the options available on the Admin page.
Click on Masterstation Config to enter the main system configuration page - see section 7.5.17.
Modify this page to set up the master station parameters by using the drop-down boxes for each
parameter. Most default values will be suitable for getting the system started, though consideration
should be made for every setting.
Once the settings for each section are as required, they must be downloaded to the master station
CPU module. Click on the appropriate save settings button for the changes made, and wait for the
web page to refresh before moving to the next task.
7.6.1 Masterstation Config - Modbus Address
The Modbus address for host communications is set on the master station configuration page. Change
the Modbus address to match the desired serial communication and Modbus TCP address for access
to the actuators on the current loop. The user may need to change both the option 1 and option 2
Modbus addresses depending on the system. The two Modbus addresses must not be the same and
it is advisable to change the addresses from the default values. Care should be taken to ensure that
in a system with P2 (current loop) and P3 wireless option modules, the P3 wireless address will not
conflict with the P2 Modbus address range i.e. in a system with 180 P2 wired devices the P2 Modbus
address range will be the address set for P2 Modbus address + 2, therefore the first address available
for the P3 wireless Modbus address will be the P2 Modbus address + 3. In a mixed system Option 1
will be the P3 wireless network and Option 2 will be the P2 current loop network.
The FCU distribution bar must be set up correctly to ensure that communication to all devices is
possible.
7.6.2 Masterstation Config - Pakscan 2 Current loop option
The master station configuration page is also used for setting up the Pakscan 2 Current Loop option
module if one is fitted. Set the loop performance parameters in accordance with site requirements.
Make sure the loop speed is compatible with the value of the loop capacitance, see section 2.1.
Set the highest field unit address parameter equal to the actual highest address.
Doubling can be set to ‘On’ if the loop performance is not fast enough. It has the effect of
halving the time to collect data from the field units.
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