Deltabar S
12 Endress+Hauser
• Cyclic (Burst): max. 3/s, typical 2/s
The Device 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)
Dynamic behavior:
PROFIBUS PA
A typical PLC cycle time of 1 s results in the following behavior:
Reading cycle (PLC)
• Cyclic: max. 30/s (dependent on the number and type of function blocks used in a closed-control loop)
• Acyclic: typical 25/s
Cycle time (update time)
min. 200 ms
The cycle time in a bus segment in cyclic data communication depends on the number of devices, on the
segment coupler used and on the internal PLC cycle time. A new value can be determined up to 5 times per
second.
Response time
• Cyclic: approx. 10 to 13 ms (depends on Min. Slave Interval)
• Acyclic: approx. 60 to 70 ms (depends on Min. Slave Interval)
Type Measuring cell Dead time (t
1
) [ms] Dead time (t
1
) +
Time constant T63 (=t
2
) [ms]
Dead time (t
1
) +
Time constant T90 (=t
3
) [ms]
PMD75 min. • 10 mbar (0.15 psi) and 30 mbar (0.45 psi)
• 100 mbar (1.5 psi)
• 500 mbar (7.5 psi)
• 3 bar (45 psi)
•16 bar (240 psi)
80 • 530
• 140
• 125
• 120
• 140
• 1075
• 173
• 139
• 127
• 173
max. • 10 mbar (0.15 psi) and 30 mbar (0.45 psi)
• 100 mbar (1.5 psi)
• 500 mbar (7.5 psi)
• 3 bar (45 psi)
•16 bar (240 psi)
1280 • 1730
• 1340
• 1325
• 1320
• 1340
• 2275
• 1373
• 1339
• 1327
• 1373
PMD70,
FMD76
min. • 25 mbar (0.375 psi)
• 100 mbar (1.5 psi)
• 500 mbar (7.5 psi)
• 3 bar (45 psi)
125 • 4825
• 405
• 335
• 235
• 10845
• 679
• 518
• 288
PMD70,
FMD76
max. • 25 mbar (0.375 psi)
• 100 mbar (1.5 psi)
• 500 mbar (7.5 psi)
• 3 bar (45 psi)
1325 • 6025
• 1605
• 1535
• 1435
• 12045
• 1879
• 1718
• 1488
FMD77,
FMD78
max. Dependent on the diaphragm seal
To Next Page
Loading...
