Deltabar S PMD70/75 FMD76/77/78
Deltabar S, PMD70, PMD75, FMD76, FMD77, FMD78 - from AoteWell
Deltabar S, PMD70, PMD75, FMD76, FMD77, FMD78 - from AoteWell
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<strong>Deltabar</strong> S<br />
Dynamic behavior,<br />
PROFIBUS PA<br />
A typical cyclic parametrization for the PLC of 20 values per second results in the following behavior:<br />
Type<br />
Dead Measuring cell Time constant (T63), t 2 Time constant (T90), t 3<br />
time t 1<br />
PMD<strong>75</strong> 295 ms • 10 mbar (0.15 psi) and 30 mbar<br />
• 100 mbar (1.5 psi) measuring cell<br />
• 500 mbar (7.5 psi) measuring cell<br />
• 3 bar (45 psi) measuring cell<br />
• 16 bar (240 psi) and 40 bar (600 psi)<br />
measuring cell<br />
• 200 ms<br />
• 60 ms<br />
• 45 ms<br />
• 40 ms<br />
• 60 ms<br />
• 1058 ms<br />
• 373 ms<br />
• 354 ms<br />
• 347 ms<br />
• 373 ms<br />
FMD<strong>77</strong>,<br />
FMD<strong>78</strong><br />
Dependent on the diaphragm seal<br />
<strong>PMD70</strong>,<br />
<strong>FMD76</strong><br />
340 ms • 25 mbar (0.3<strong>75</strong> psi) measuring cell<br />
• 100 mbar (1.5 psi) measuring cell<br />
• 500 mbar (7.5 psi) measuring cell<br />
• 3 bar (45 psi) measuring cell<br />
• 4700 ms<br />
• 280 ms<br />
• 210 ms<br />
• 110 ms<br />
• 10810 ms<br />
• 644 ms<br />
• 483 ms<br />
• 253 ms<br />
Response time<br />
• Cyclic: approx. 10 ms per request<br />
• Acyclic: < 50 ms<br />
All values are typical values.<br />
Cycle time (update time)<br />
The cycle time in a bus segment in cyclic data communication depends on the number of devices, on the<br />
segment coupler used and on the internal PLC cycle time.<br />
Dynamic behavior,<br />
FOUNDATION Fieldbus<br />
A typical configuration for the macro cycle time (host system) of 250 ms results in the following behavior:<br />
Type<br />
Dead Measuring cell Time constant (T63), t 2 Time constant (T90), t 3<br />
time t 1<br />
PMD<strong>75</strong> 295 ms • 10 mbar (0.15 psi) and 30 mbar<br />
• 100 mbar (1.5 psi) measuring cell<br />
• 500 mbar (7.5 psi) measuring cell<br />
• 3 bar (45 psi) measuring cell<br />
• 16 bar (240 psi) and 40 bar (600 psi)<br />
measuring cell<br />
• 200 ms<br />
• 60 ms<br />
• 45 ms<br />
• 40 ms<br />
• 60 ms<br />
• 1058 ms<br />
• 373 ms<br />
• 354 ms<br />
• 347 ms<br />
• 373 ms<br />
FMD<strong>77</strong>,<br />
FMD<strong>78</strong><br />
Dependent on the diaphragm seal<br />
<strong>PMD70</strong>,<br />
<strong>FMD76</strong><br />
340 ms • 25 mbar (0.3<strong>75</strong> psi) measuring cell<br />
• 100 mbar (1.5 psi) measuring cell<br />
• 500 mbar (7.5 psi) measuring cell<br />
• 3 bar (45 psi) measuring cell<br />
• 4700 ms<br />
• 280 ms<br />
• 210 ms<br />
• 110 ms<br />
• 10810 ms<br />
• 644 ms<br />
• 483 ms<br />
• 253 ms<br />
Reading cycle<br />
• Cyclic: up to 5/s, dependent on the number and type of function blocks used in a closed-control loop<br />
• Acyclic: 10/s<br />
Cycle time (update time)<br />
250 ms<br />
Response time<br />
• Cyclic: < 80 ms<br />
• Acyclic: < 40 ms<br />
All values are typical values.<br />
12 Endress+Hauser<br />
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