Analog Inputs (M3.5.2) - Siemens bt300 Operator's Manual

Analog Inputs (M3.5.2)

The analog inputs are very flexible to use. Parameters are functions/features that connect to the required analog
input terminals. The analog inputs are represented by the slot they exist on. Analog inputs 1 and 2 exist by default
on SlotA. For example, AI 1 Signal Selection (P3.5.2.1) would connect analog input 1 when set as AnIN SlotA.1.
The analog inputs settings are presented in the following table:
Structure Parameter
P3.5.2.1 AI1 Signal Sel
P3.5.2.2 AI1 Filter Time
P3.5.2.3 AI1 Signal Range
P3.5.2.4 AI1 Custom Min
P3.5.2.5 AI1 Custom Max
P3.5.2.6 AI1 Signal Inv
P3.5.2.7 AI2 Signal Sel
P3.5.2.8 AI2 Filter Time
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NOTE:
The status of the analog inputs can be monitored in the Multimonitor (M2.1) view, or
in the I/O and Hardware (M5) menu.
Table 32: Analog Inputs Settings.
Unit Min
s 0 300
0-10V/ 2-10V/
0-20 mA 4-20 mA
% -160 160
& -160 160
Normal Inverted
s 0 300
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Chapter 4 - Parameters and Menu Structure
Max Default ID
AnIN SlotA.1 377
1 378
0-10V/ 379
0-20 mA
0 380
100 381
Normal 387
AnIN SlotA.2 388
1 389
Parameters (M3)
Description
Defines the location of the signal to
be used as analog input 1.
Defines the time it takes to reach
63% of a step change in the analog
input signal defined by AI1 Signal
Sel (P3.5.2.1).
When this parameter is given a
value > 0, the function that filters
out disturbances from the incoming
analog signal is activated.
NOTE: Long filtering time makes
the regulation response slower.
Defines the signal range for the
analog input defined by AI1 Signal
Sel (P3.5.2.1). Ranges are as
follows:
0 = 0 to 10 Vdc/0 to 20 mA
1 = 2 to 10 Vdc 4 to 20 mA
NOTE: This setting can be
bypassed by using AI1 Custom Min
(P3.5.2.4) and AI1 Custom Max
(P3.5.2.5).
Defines the custom minimum to be
used for bypassing the AI1 Signal
Range (P3.5.2.3).
Defines the custom maximum to be
used for bypassing the AI1 Signal
Range (P3.5.2.3).
Defines the operation of the analog
input 1 signal as follows:
Normal = 0V or 0 mA = 0%, 10V or
20 mA = 100%.
Inverted = 0V or 0 mA = 100%, 10V
or 20 mA = 0%.
Defines the location of the signal to
be used as analog input 2.
Defines the time it takes to reach
63% of a step change in the analog
input signal defined by AI2 Signal
Sel (P3.5.2.7).
DPD01809
2016-06-07
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