Revised 8/14/02 • U253
9
© 2002 Automated Logic Corporation
Writing GFBs for the U253
Depending on whether you are using a
WebCTRL or a SuperVision system, you must
use either Eikon for WebCTRL or Eikon 3.0a
or later to create GFBs for the U253. Be sure
to enable the Zone GFB option in Eikon when
making the GFB.
A sample U-Line GFB is available at
Automated Logic Corporation’s web site
(http://www.automatedlogic.com). Use this
sample as a guideline for creating your own
GFBs. A default algorithm can be loaded into
the U-card to provide stand-alone control
functions if communications between the U-
card and the UNI are disrupted. Refer to the
appropriate UNI module driver technical
instruction for instructions on setting up this
default algorithm. The U253’s Graphic
Function Block is stored in the UNI module,
which must use one of the following module
drivers:
• For WebCTRL systems, the DRV_UNI16
or DRV_UNI32 module driver.
• For SuperVision systems, the U1M,
U3M, UNM, or U5M module driver.
When using a LogiStat sensor with the U253,
include a LogiStat microblock and a Zone
Control microblock in the module’s GFB. The
LogiStat microblock supports the LogiStat,
LogiStat Plus, and LogiStat Pro sensors.
If you are using WebCTRL, you do not need to
enter point identifiers for this microblock in
Eikon for WebCTRL or WebCTRL. If you are
using SuperVision, you do not need to enter
channel numbers for this microblock in Eikon
or SuperVision. For more information, refer to
the
Eikon for WebCTRL Microblock Reference
Guide
or the
Eikon Microblock Reference
Guide
.
You do not need to use BACnet microblocks
when writing the GFB, unless you have a
BACview Keypad Display connected to the
Figure 11. Using the UDF
4"
10.2 cm
2.5"
6.4 cm
High
High
4321
STATIC
PRESSURE
TOTAL
PRESSURE
Flow #1
Flow #2
Low
Low
6"
15.2 cm
U module
Maximum Cable Length 4 ft.
Use 20 Gauge Wire
or ALC cable (part no. 235012)
NOTE: When making a sensor cable, disregard the
numbers imprinted on the plastic connector.
