Three different size control symbol sets work with the attribute files
Secondary Pump Control
This example uses the control symbol sets developed for the WinPRO/HVACPRO
Application Builder used to program Johnson Controls Inc. ASC controllers.
The control diagram is a Secondary Pump System control. It can be loaded into
an AS-UNT141-1 controller. The system is turned on with the SECENA input.
Both pumps can be run if the TWOSEC BD parameter is set. Otherwise the pump selected by
the SLWP parameter is the lead pump. Either pump 1 or pump 2. When either pump runs the PI
controller outputs a 0 to 10 volt signal to control both VFDs for the pumps. If the lead pump
fails as detected by the pump status or a low system pressure then the other pump becomes
the lead and the alarm is set.
For an understanding of the symbol functions used in the control diagram go to the
WinPRO/HVACPRO page and download the Application Manual. The functions
used with the JCI controllers are used in the simulation/modeling application
but are implemented in SWFSCRIPT for the GIS.
The price for the SWFTEC Graphic Program Generator software is $75.00 USD without
an application attribute file set and $100.00 USD with an application attribute file set.
Both versions include the Symbol Packer utility for making your own symbol sets from *.bmp files
and come with example symbols sets.