Hardware manual

Chapter 2 - TeleFlow Standard ACCOL Load
TeleFlow™ 2-11 Standard ACCOL Load
Gain 1
Integral 1 repeat/min
Derivative 0 mins
Deadband 0
Valve travel 30 secs
Pulse width 1 sec
Max rate 5000 mscf/hr
Radio Control
Two radio control functions are available; Scheduling and Sensing (also called 'Fast
radio'). Radio Scheduling is used to conserve battery power by allowing the radio to
be powered up for a short time every day in expectation of receiving a message from
a remote 'host' during that time.
If Radio Scheduling is enabled, the system will turn ON the radio at a defined time
(an hour of the day) and keep it on for a defined length of time, usually in a period
of minutes. A user-configured 'listen' timer is also started so that if no messages are
received while the timer is running the radio will turn OFF to save power. The
radio can also be activated manually for testing via the local port. Radio power is
controlled using a system signal that turns an auxiliary power output ON or OFF.
If Radio Sensing is enabled the system will turn the radio on at a defined time (an
hour of the day) and begin a sequence in which the radio is turned ON every so
many seconds but for 'listen' time intervals less than 1 second. It continues this
sequence until the defined 'stop' hour is reached. If a message is received while the
radio is ON the system will keep the radio ON, process the message and respond.
After every response the radio remains ON for one more 'listen' time, after which it
is shut OFF.
Both radio control functions can be active simultaneously.
Modem Dial-Out (THIS FUNCTION IS NOT YET SUPPORTED)
This feature makes use of the ACCOL Slave Auto-dial function. When DIALOUT is
enabled and a trigger condition is satisfied the load will automatically dial a phone
number (the modem option must be installed) held in the Dial List. The number of
the Dial list is held in system signal #DIAL.001. Up to 13 different trigger
conditions can be armed to initiate the call. Program logic examines the state of the
signal associated with an 'arm' signal and, should it be in an Alarm state, sets a
non-zero value into the Dial Enable signal in the Dial List to start the call. The dial