Emerson Micro Motion 3711 Configuration And Use Manual page 122

Function Sequence Tables
Table 11-2 FST Registers window – Advanced parameters
Parameter Description
Timer Countdown timers used to signal that a certain period has
#1 – 4 elapsed. To use, specify the number of 100-millisecond periods
that each timer will start with. When a 100-millisecond period
has elapsed, the timers are decremented by 1.
Misc Provides global storage space for unsigned 8-bit integers (0 to
#1 – 4 255). Specify startup values as required. These values can be
changed by the FST.
Execution Delay Specifies the number of seconds to delay betwen FST steps.
Result Register Displays the floating-point result from the most recent FST
command.
Compare Flag Displays an integer value used by the FST's logic functions.
Mesg Enter a string (30 characters maximum) for any FST message.
#1 – 2
Code Size Displays the number of bytes used by the FST.
Code Pointer Displays the offset of the next function to be executed. The
Byte offset is calculated from the beginning of the function's memory
segment.
Step 4 Compile the FST
When you compile an FST, it is converted into executable form. To compile an FST, click the
button on the FST Editor toolbar, or click
Compile
The results of the compile are displayed in the Output field at the bottom of the workspace. If an error
occurs during the compile process, the Output field lists the error type, and the cell in which the error
occurred is displayed in red.
Step 5 Download the FST
When the FST has compiled without errors, download it to the Model 3711 by clicking the
button on the FST Editor toolbar, or by clicking
During the download, you will be prompted to specify a version number and a description for the
FST.
After the download, a prompt will be displayed allowing you to start the FST if desired.
Step 6 Save the FST to a file
Although not required, Micro Motion recommends that you save all FSTs to a file on the PC. To save
an FST, click the
Editor menu. Then specify the name and location of the file, using the .FST extension.
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button on the FST Editor toolbar, or click
Save File
in the FST Editor menu.
Build > Compile
in the FST Editor menu.
FST > Download
Micro Motion
Comments
See Section 11.8.4 for information
on timers.
Real-time values for the timers are
displayed in the FST Monitor
window.
Real-time values for these points
are displayed in the FST Monitor
window.
Default: 0 seconds
Minimum value: 0.1 second
Special-purpose register; in typical
use, not configured. May be
configured for use in Trace mode
during testing (see
Section 11.6.2).
Special-purpose register; in typical
use, not configured. May be
configured for use in Trace mode
during testing (see
Section 11.6.2).
Real-time values for the
messages, along with message
data values, are displayed in the
FST Monitor window.
Read-only.
The value typically changes
rapidly unless the FST is at a WT
command or is in Trace mode. It
can be used for debugging (see
Section 11.6.2).
Download
in the FST
FST > Save As
®
Model 3711 Gas Flow Computers