CIRCUTOR PowerStudio Series - Manual (Page 30)

PowerStudio PowerStudio
30 User Manual
3.2.- F.A.Q
3.2.1 Some equipment is not communicating. What could be happening?
Make sure your computer is switched on and in a mode which can communicate, ensuring
particularly that it is not in the set up or starting up mode. Make sure your computer is connected to a
PC or a compatible converter and that the wiring is correct. Make sure there is no possibility of any
interference in the cable run from the device to the PC or between the device and the converter. If you
are connected to a converter, check that the latter is properly connected to the PC. Verify that the grid
is not overloaded with an excessive amount of devices. If your computer is connected by way of a 232-
485 converter make sure that the switches are in the correct position. Make sure that the equipment
bus does not have devices that communicate at different speeds or have the same device number.
Check that the PC port is working properly.
3.2.2 A TCP2RS converter does not communicate. What could be
happening?
Make sure your computer is switched on and connected to the communications network. Make
sure there is no possibility of any interference in the cable run from the converter to the PC. Make sure
your PC is correctly connected to the communications network and can communicate with other
equipment connected to the network (for example with another PC). If you are using a router, make
sure the communication port is redirected in the router, to the converter address.
3.2.3 I cannot see the applet. What could be happening?
Check that the local computer has the Microsoft Internet Explorer, Netscape (Mozilla) or
Firefox browser installed. Ensure that the Java Virtual Machine JRE 1.6 (6.0) or later is installed. If they
are not installed the browser will provide information and guide us through the installation process.
If the applet appears but a message is displayed warning that there is “no communication
with the server” or “the required information could not be recovered” ensure that the
communications engine is running.
3.2.4 The Applet does not display the texts properly. What could be
happening?
It is possible that some fonts applied to the controls when designing a report or a SCADA
screen do not exist on the machine on which the applet is downloaded and, as a consequence, the
font chosen may be markedly different from the original.
3.2.5 The values display is not what I expected. What could be happening?
It is possible that a conditional control or a formula refers to a variable of a device which does
not communicate or that has not yet been interrogated for the first time. In a SCADA screen, if we are
dealing with a condition nothing will appear and if we are dealing with a formula a dash ("-") appears
until the value can start. In a report, if there is no data in this period and we cannot assess the
condition of a conditional control, nothing will be displayed and if we cannot assess the definition the
same will occur.
It may occur that when assessing the formula we come across an invalid operation, such as
the square root of a negative number or a zero division, in this case a question mark ("?") appears on
the SCADA screen and the report will show the definition of the formula. If we are unable to assess the
condition of a conditional control, nothing will be displayed.
It may not be possible to represent the assessment of the formula of an expression, because
either its control or assessment configuration returned an out of range value. In this case the “#”
character will appear.