Endress+Hauser Deltapilot M FMB51 - Dead Time, Time Constant; Dynamic Behavior: Current Output; Dynamic Behavior: HART

Deltapilot M FMB50/51/52/53
Endress+Hauser 13
Dead time, time constant
P01-xxxxxxxx-05-xx-xx-xx-036
Presentation of the dead time and the time constant
Dynamic behavior:
current output
Dynamic behavior: HART
Reading cycle
• Acyclic: max. 3/s, typical 1/s (depends on command # and number of preambles)
• Cyclic (Burst): max. 3/s, typical 2/s
The Deltapilot M commands the BURST MODE function for cyclic value transmission via the HART
communication protocol.
Cycle time (Update time)
Cyclic (Burst): min. 300 ms
Response time
• Acyclic: min. 330 ms, typical 590 ms (depends on command # and number of preambles)
• Cyclic (Burst): min. 160 ms, typical 350 ms (depends on command # and number of preambles)
I
63 %
100 %
t
t
1
t
2
90 %
t
3
Type Dead time (t
1
) [ms] Time constant T63 (= t
2
) [ms] Time constant T90 (= t
3
) [ms]
max. FMB50 60 90 210
max. FMB51
FMB52
FMB53
500 250 -
Type Dead time (t
1
) [ms] Dead time (t
1
) [ms] +
Time constant T63 (= t
2
) [ms]
Dead time (t
1
) [ms] +
Time constant T90 (= t
3
) [ms]
min.
FMB50
220 310 370
max. 1020 1110 1170
min. FMB51
FMB52
FMB53
660 910 -
max.
1460
1710
-