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Transmission time of the analogue values
The transmission time of the analogue values depends on the conver-
sion time of the analogue signals into digital signals in the AS-i mod-
ule and on the transmission time via the AS-Interface.
The conversion time per analogue input signal is 60 ms. But if only
channel 1 is used, i.e. all other channels are deactivated via the para-
meter bits P1 and P2, the conversion time for this channel is only
20 ms.
The transmission time of the 4 16-bit values via the AS-interface ideal-
ly is 7 AS-i cycles per value. For a cycle time of 5 ms per AS-i cycle this
results in a transmission time of 4 * 7 * 5 ms = 140 ms via the AS-Inter-
face.
If the channels 2 to 4 are deactivated, the transmission via the AS-
Interface for one channel requires 7 AS-i cycles. For a cycle time of
5ms per AS-i cycle this results in a transmission time of 1 * 7 * 5 ms =
35 ms via the AS-Interface.
Thus the total transmission time for 4 analogue values ideally is 240 ms
(conversion time) + 140 ms (transmission time) = 380 ms. If channels
2 to 4 are deactivated, the transmission time ideally is 20 ms + 35 ms
= 55 ms.
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