Emerson Micro Motion 3711, Configuration And Use Manual, Page: 123 / 234

Configuration and Use Manual 115
Function Sequence Tables
PID Contr
o
l Loops
Mo
db
us I
n
terface
Fu
ncti
o
n
Sequ
en
ce T
a
b
le
s
Monitoring and Displa
ys
11.6 Monitoring and tracing
Monitoring is used to observe real-time values for FST timers, integer values in the Misc registers,
and strings and values in the Message registers. Monitoring is also used to access Trace mode.
You can monitor only one FST at a time.
11.6.1 Monitor mode
To monitor an FST:
1. Connect to the Model 3711.
2. Open the FST Editor window.
3. Ensure that the FST to be monitored is running.
4. To monitor the first FST, open the FST 1 panel, then click the
Monitor
button. To monitor the
second FST, open the FST 2 panel, then click the Monitor button.
The FST is automatically loaded into the workspace, and the FST Monitor window is displayed, as
shown in Figure 11-5. In this window, the FST steps are displayed, and the current contents of FST
registers and other storage are also displayed, updated automatically as the FST executes. The storage
areas are listed and defined in Table 11-3.
As shown in Figure 11-5, you can use the controls in the Monitor window to pause and resume
monitoring, and to start and stop Trace mode.
Table 11-3 FST Monitor window parameters
Parameter Description Comments
CF Current contents of the Compare Flag, displayed as an integer
value.
CF Bny Current contents of the Compare Flag, displayed as a binary
value.
RF Run Flag:
• 0 – FST not running
• 1 – FST running
• 2 – Restart from beginning
• 5 – FST has shut down due to invalid point reference
• 8 – Initiate Trace mode
• 9 – Model 3711 is processing
IP Instruction Pointer. Indicates the location in Model 3711
memory of the next function to be executed. One storage
location is used for each byte that stores the function.
Size Number of bytes reserved for the FST program.
BRK Delay, in millisecond intervals, between the execution of
successive FST functions.
RR Current contents of the Result Register.
R1 – 10 Current contents of the floating-point registers.
Timer 1 – 4 Current contents of the timer.
Msg 1 – 2 Current contents of the Mesg fields.
Msg Data Current data associated with a message.
Misc 1 – 4 Current contents of the integer registers.