====== Analog input ======

{{en:mervis-ide:35-help:unipi_ai.png}}

===== Full Name =====

AI_measure (AI Voltage/Current on Group 1)

===== Library =====

LIB\Unipi

===== Version =====

V1.1

===== Description =====

==== Important ====

This function block is no longer needed since IDE 2.1.x and OS v1.6, its functionality has been moved into newly created datapoints AI_1.01, which also includes setting of measurement type.


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This block simplifies work with **Analog input 1.1 (AI1.1)** as Voltage and Current input at **all Neuron models** and at the follwing moedls of **Axon - S105, S115, S155, M205, M505, L205, L505**

To save the configuration it is necessary to write log. 1 to the **_NVsave_1** in the variable browse while in Debug mode. **Please note: This operation saves the actual state of all output including AO, relays. DO, to startup config!**

Since firmware v5.0 (variables Vref_1 and so on has value 0) this block is not necessary and its only needed to write to AO_mode and AO_1. However it can be used, backwards compatibility is preserved.

===== Inputs =====

|Input        |Type           |Description                                                                                     |
|mode         |Voltage/Current|Measurement mode (Volts/MiliAmperes)                                                            |
|AI_1         |INT            |Analog input AI_1.01. >Must be connected to the generated HW global variable _AI_1 of the device|
|Vref_1       |INT            |Must be connected to the generated HW global variable VRef_1 of the device                      |
|VrefInt_1    |INT            |Must be connected to the generated HW global variable VrefInt_1 of the device                   |
|AI_A_DEV_1   |INT            |Must be connected to the generated HW global variable AI_A_DEV_1 of the device                  |
|AI_A_Offset_1|INT            |Must be connected to the generated HW global variable AI_A_Offset_1 of the device               |
|AI_V_DEV_1   |INT            |Must be connected to the generated HW global variable AI_V_DEV_1 of the device                  |
|AI_V_Offset_1|INT            |Must be connected to the generated HW global variable AI_V_Offset_1 of the device               |

===== Outputs =====

|V├Żstup        |Typ |V├Żznam                                                                                               |
|measured_value|REAL|Measured value (0-10V/0-25mA).                                                                       |
|AI_mode       |INT |Config mode of AI. Must be connected to the generated HW global variable AI_mode_1.01_w of the device|

===== Use case =====

{{en:mervis-ide:35-help:exampai.png}}