II - DCE FEL ČVUT v Praze

SIMATIC S7 Ex Analog Modules
Response time
3-40
In the most unfavorable case, the response time (t1 to t3), i.e. the time from
receiving the digital output values in the module up to obtaining the specified
value at the analog output is the sum of the cycle time and transient recovery
time. The most unfavorable case is when channel conversion begins just
before transfer of a new output value.
The digitized output values are connected simultaneously to all output
channels.
Fig. 3-15 shows the response time of the analog output channels.
t 1
t Z
t A
tA = Response time
tZ = Cycle time
tE = Transient recovery time
t1 = New digitized output value applied
t2 = Output value accepted and converted
t3 = Specified output value obtained
Fig. 3-15 Response time of analog output channels
t 2
t E
t 3
I/O Modules with Intrinsically-Safe Signals
C79000-G7076-C152-04