Actimux Power : Analog inputs description

Analogue inputs of POWER ECU can be configured either as:

The INA configuration is chosen by the parameter “Mode”.

1 - Not Used

If the input’s Mode parameter is set to “not used“.The input is not considered, and there are no parameters or mnemonics to connect. Only the Mode parameter is available to allow the use of the input (moving to Analogue input used configuration).

If the analogue input is not used it's important to choose this mode because in this case the associated CAN frame is not send.

2- Analogue Input Used

2.1 - Characteristics

This input is dedicated for resistance measurement with two possible ranges:

Low resistance measurement: 3 Ohms to 500 Ohms with accuracy less than 10%.
High resistance measurement: 500 Ohms to 10K Ohms with accuracy less than 5%.
The range selection can be done dynamically if, the "dynamic Range" option is checked.

2.2 - Parameters

The following parameters are to be set for the Analogue inputs function :

2.2.1. -Parameters description

Category	parameter	Description
General	'Filtering value'	The filtering gain is adjustable between 5 ms to 480 ms.
General	'Period Frame'	This parameter set the period of the analogue frame. This parameters must be set to minimize the CAN BUS load.
Fault Params	Dynamic Range	to Dynamically calculate the Range for threshold parameters
	'Measure Type'	This parameter set the range of the analogue input if the "Dynamic Range" is not selected. there are 2 possibles ranges: Low resistance : 3 ohms to 500 ohms High resistance :500 ohms to 10kohms.
	Low threshold	A valid range can be defined with 2 adjustable thresholds. the value unit is related to the Range selected, see table below for details on values accuracy : 1 ohm for High Resistance range. 0.01 ohm for Low Resistance range. 0.2 ohm for Dynamic Range selection. If threshold value is null, the fault detection will be disabled. See model below
	High threshold

2.2.2. -Thresholds accuracy details

Range	Threshold value	Accuracy
High Range : 500-10 k ohms	1- 500 ohms	accuracy not guaranteed
	500 ohms - 10 k ohms	less then 5% accuracy
	10 k ohms - 50 k ohms	accuracy not guaranteed
Low Range : 3-500 ohms	0.01-3 ohms	accuracy not guaranteed
	3-10 ohms	less then 1 ohm
	10-500 ohms	less then 10 %
Dynamic Range : 3 ohms-10 KOhms	0.02-3 ohms	accuracy not guaranteed
	3-10 ohms	less then 1 ohm
	10-500 ohms	less then 10 %
	500 ohms - 10 k ohms	less then 5% accuracy
	10 k ohms - 50 k ohms	accuracy not guaranteed

2.2.3. -Thresholds model

2.3 -Mnemonics

The mnemonics names for Powers ECU IO must applies a set of rules more details.

The following mnemonics are available for the analogue input function:

Mnemonic	STraToN Type	Description
Input_Ana	WORD	The input value is available for Application as an analogue. This value is given in ohm for high resistor This value is given in 0,01ohm for low resistor
Threshold_fault	BOOL	This value indicates to the Application that the input is Outside the right level.
Equipment	BOOL	The usage of the variable of default "Threshold_fault" is not active while the variable connected to this mnemonic has its value to 'False' ( more details ).