42 Sentry Equipment Corp
Register Sample Sentry II Register R/W Format
30017 / 40017 Remote Stop/Permissive Run Read / Write INT 16
30018 / 40018 Shutdown Flow Rate Read / Write INT 16
30019 / 40019 Remote Blowdown/Sample Control Read / Write INT 16
30020 / 40020 Empty Read / Write INT 16
30021 / 40021 Shutdown Pressure Read / Write INT 16
Additional Notes:
State (30001)
0 = Manual 1 = Closing Valve 2 = Start 3 = Blowdown
4 = Sample 5 = Stop 6 = Entering Manual
7 = Temperature Alarm 8 = Motor Alarm
9 = Remote Blowdown 10 = Remote Sample 11-14 = Auto Clean
Remote Start (40016)
Momentarily place a 1 in this register to remotely place the system in Auto. To place a
momentary 1 in this register, you need to write a 1 to this register for at least 1 second,
followed by writing this register back to zero.
Remote Stop/Permissive Run (40017)
Momentarily place a 1 in this register to remotely place the system in Manual. Maintaining
a 1 in this register functions as a remote lockout. To place a momentary 1 in this register,
you need to write a 1 to this register for at least 1 second, followed by writing this register
back to zero.
Remote Blowdown/Sample Control (40019)
0 = Local control of system
1 = Remote blowdown
2 = Remote Sample
Use this register to control the mode of the Sample Sentry II. A 0 in this register gives local
control to the system. Blowdown and Sample modes are initiated based on controller
setup parameters. Placing a 1 in this register places the system in Remote Blowdown. SV-2
remains closed preventing ow to online analyzers. The system overrides the blowdown
timer, remaining in the blowdown condition until this register changes or the system is
shutdown. Placing a 2 in this register places the system in Remote Sample.
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General