Section
4-1
4 Device Software Functions
INTRODUCTION
The Model 8712C/U/H features a full range of software functions for
configuration of output from the transmitter. Software functions are
accessed through the LOI (see Section 3 Local Operator Interface),
a HART Communicator (see Appendix A HART Communicator), or
a control system. Configuration variables may be changed at any time
and specific instructions are provided through on-screen instructions.
SAFETY MESSAGES
Be sure to observe the following warnings and cautions before carrying
out any software functions or changing configuration parameters.
Set-up Parameters Page
Process Variables page 4-2
Diagnostics and Service page 4-3
Basic Setup page 4-6
Detailed Setup page 4-9
Review Variables page 4-15
Miscellaneous Functions page 4-16
Multidrop Communications page 4-18
Explosions can cause death or serious injury.
Before connecting the HART Communicator in an explosive atmosphere, make sure
the instruments in the loop are installed in accordance with intrinsically safe or
nonincendive field wiring practices.
Do not make connections to the HART Communicator serial port or NiCad recharger
jack in an explosive atmosphere.
Attempting an electronics trim without a Model 8714 may result in an inaccurate
transmitter, or a “DIGITAL TRIM FAILURE” message may appear. If this message
occurs, no values were changed in the transmitter. Simply power down the Model
8712C/U/H to clear the message. If the trim was completed or no error message
appears, correction requires a Model 8714B or Model 8714C.
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