Installation manual

FuelMaster
®
Installation Manual
56
Some customers have asked to use the Quick Stop Button as an emergency stop switch. In most locations
it cannot be legally used as an emergency stop switch because it is too close to the fueling equipment. If it is
used as an emergency stop switch, it is supposed to remove power from all fuel island equipment. If used
for this purpose, it should only control a remote emergency stop switch. Under no circumstances should all
fuel island equipment power lines be brought into the FMU pedestal.
Data Logger/On-Site Printer
NOTE
• Data Logger and On-Site Printer connections must be made to a Master FMU.
• The NEC states, “Communication conductors shall not be placed in any raceway, compartment,
outlet box, junction box, or similar fitting with conductors of electric light, power, Class 1, non-power-
limited fire alarm or medium power network-powered broadband communications circuits.” Ref: NFPA
70, para 800.133(A)(1)(c).
An On-Site Printer or Data Logger will capture copies of transactions and messages generated by the FMU.
On-Site Printers print these copies in hardcopy on printer paper. Data Loggers capture the copies and store
them in electronic format on an SD card. On-Site Printers must be set to the same data transfer parameters
as a Master FMU: 4800 baud, no parity, 8 data bits, 1 stop bit.
A Data Logger is installed in a master FMU and requires no outside connection. An On-Site Printer must be
connected to a Master FMU through an RS-232 or RS-422 cable connection. If connected via RS-232, the
maximum cable length should not exceed 300 feet. If the distance to the printer is greater than 300 feet, the
connection must be made using RS-422, and short-haul modems must be installed to make the conversion
from RS-232 to RS-422 first at the FMU then, finally, from RS-422 to RS-232 in a DB25 connection at the
printer.
When purchased from Syn-Tech, On-Site Printers are provided with a 25 or 50 foot serial printer cable, and
a data surge suppressor, and are pre-configured for connection to an FMU. The surge suppressor is
destructive and must be replaced if it receives a surge. 2009 replacement cost is $80 MSRP. If not
purchased from Syn-Tech, ensure the printer has a serial interface. A serial interface is optional equipment
with some printers.
Tank Monitor Interface
NOTE
• Tank Monitor communications cable connections must be made to a Master FMU.
• Tank Monitor interfaces may be through wireless communications. Product Bulletin 133 describes a
wireless communications option.
• The NEC states, “Communication conductors shall not be placed in any raceway, compartment,
outlet box, junction box, or similar fitting with conductors of electric light, power, Class 1, non-power-
limited fire alarm or medium power network-powered broadband communications circuits.” Ref:
NFPA 70, para 800.133(A)(1)(c).
• Communications with a Tank Monitor Unit (TMU) are not real-time. TMU inputs are received when
communications is established between the master FMU and Central Controller and the TMU
Interface option in the FuelMaster
®
software is selected. As such, alarms generated by the TMU are
not automatically sent to the master FMU as they occur.
• Follow the manufacturer’s recommendations for cable lengths. Most manufacturer’s won’t warrant
RS-232 communications beyond 50 feet. Additional distance is possible with larger cable conductors
or RS-422.
• If a Tank Monitor Interface is added to an existing master FMU, and that FMU already has an I/O
Silver Board installed, be sure to specify the current application (i.e., two Satellite FMU connections)
of the I/O Silver Board when placing an order for a Tank Monitor Interface Kit.
A communications cable may be routed between a Master FMU and the control box of a Tank Monitor Unit
(TMU) to extract reports data generated by the TMU. When the TMU report data is brought into the
232