Siemens TIM 4R-IE DNP3 - Page 214

The SINAUT Configuration Tool
6.6 TD7onTIM
TIM DNP3
214 System Manual, 06/2014, C79000-G8976-C253-03
1. Reading the data from the input area of the CPU
2. Analog preprocessing in the following steps:
– Unipolar analog value
– Fault suppression time
– Smoothing factor
3. Threshold value calculation for the trigger condition "Send at change of"
4. Storage of the value in the send buffer
Transfer of the value to the partner if trigger and threshold value conditions are met.
Processing parameters
The following parameters are available in the "Processing parameters" box:
Name:
Unipolar analog value
Range of
values:
Function active, function deactivated
Default:
Function active
Explanatio
n:
If the function is activated, negative analog values are corrected to the value
zero.
The error ID 8000
H
(-32768), that is displayed, for example, if there is a wire
break in life zero inputs, is nevertheless transmitted.
Name:
Smoothing factor
Rang
e of
values:
1 = none, 4 = weak, 32 = medium, 64 = strong
Default:
1
Explanation:
Using the smoothing factor, quickly fluctuating analog values can be
smoothed to a greater or lesser extent depending on the parameter setting.
It may then be possible to s
et a lower value for the send trigger "Send at
change of".
The smoothing factors are identical to the smoothing factors that are
configured for some S7 analog input modules. The smoothing in the channel
functions according to the same formula as on an input module:
where
y
n
= smoothed value in the current cycle n
y
n
= acquired value in the current cycle n
k = smoothing factor