CXAIN Command - Analog Input Configuration

Configures the interpretation of magnitudes read by the device’s AD inputs, allowing transformation and scaling of values according to the application.

What is it for?

Use case	Description
📊 Fuel sensors	Convert voltage to liters or percentage
🌡️ Temperature sensors	Transform analog signal to °C
⚡ Voltage measurement	Scale voltage readings
📈 Custom calibration	Adjust readings to specific units

It is recommended to recalibrate the analog reading constant through the AR Command
The AD value reading for each input can be obtained through the AIN Command
To query all readings obtained from all AD inputs of the device or generate a report with these values, use the AD Report

Commands

Configure


SCXAINaabccccdeeeefgggghiiiijkkkklmmmm

Query


QCXAINaa

Response


RCXAINaabccccdeeeefgggghiiiijkkkklmmmm

Parameters

Field	Description	Range
aa	Analog signal index	00-02, 07
b	Lower limit sign (BOTTOM)	+/-
cccc	Lower limit magnitude (BOTTOM)	0000-9999
d	Upper limit sign (TOP)	+/-
eeee	Upper limit magnitude (TOP)	0000-9999
f	First measured value sign (XA)	+/-
gggg	Tenths of volt for first measured value (XA)	0000-9999
h	Second measured value sign (XB)	+/-
iiii	Tenths of volt for second measured value (XB)	0000-9999
j	Sign of value to display referred to first measured value (YA)	+/-
kkkk	Value to display referred to first measured value (YA)	0000-9999
l	Sign of value to display referred to second measured value (YB)	+/-
mmmm	Value to display referred to second measured value (YB)	0000-9999

Conversion formula: The system linearly interpolates between points (XA, YA) and (XB, YB) to convert the read voltage into the desired magnitude.

Examples

Configure analog input 00


>SCXAIN00-9999+9999-0000+0001-0000+0001<
// aa=00     → Analog input index 0
// b=-       → Negative lower limit
// cccc=9999 → Lower limit value: -9999
// d=+       → Positive upper limit
// eeee=9999 → Upper limit value: +9999

Fuel sensor 0-5V → 0-100 liters


>SCXAIN00+0000+0100+0000+0050+0000+0100<
// Maps 0V-5V to 0-100 liters
// XA=0.0V → YA=0 liters
// XB=5.0V → YB=100 liters

Compatibility

💾Firmware:v1.00.00

SPLegacy

ULLegacy

MTLegacy

C3Legacy

C5Legacy

SP-IOT

SM-IOT

ZE-IOT