Delta PD-01 Bedienungsanleitung PDF herunterladen (Seite 22)

Chapter 5 Communication| CME-PD01

5-10 Revision October 2006, 2006PDD23000013

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T1: transmission time between Master and CME-PD01

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T2: waiting time for CME-PD01 buffer

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T3: transmission time between CME-PD01 and VFD-E

T1 T3

Master

Data Buffer

Timer

CME-PD01

VFD

series

Drives

T1 depends on the actual transmission speed and the type of master in use.

T2 depends on the internal timer of CME-PD01. Data is transmitted to VFD-E series per 70ms

triggered by a timer. User cannot change the time-out interval.

T3 depends on the Modbus communication between CME-PD01 and VFD-E series.

So the response (refresh) time is,

Max. response (refresh) time = T1 + T2 (70ms) + T3

In fact, the actual response (refresh) time is less than the Max. response (refresh) time. When

the data is send to CME-PD01, CME-PD01 will save the data to data buffer. If the timer is in

time-out, the data will be transmitted to VFD-E immediately.

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Delta PD-01 Bedienungsanleitung Seite 22