UBIBOT UB-AI-N1 External Sensors for Accurate Monitoring
Specifiche del prodotto
- Modello: UB-AI-N1
- Alimentazione elettrica: DC 9 ~ 36V
- Collected Signal: 4 ~ 20mA
- Analog Interface: 4 channels, single terminal
- Number of Interfaces: 4
- AD Conversion Resolution: 12 bit
- Precisione: 0.1%
- Corrente massima: 269 mA (a 12 V)
- Ambiente di lavoro: -40 ~ 85°C, 0 ~ 95%RH
- Connettore: Audio
- Size / Cable length: 82*50*32mm / 3m
- Protocollo di comunicazione: Protocollo Modbus RTU RS-485
- Indirizzo RS485: 0xDA
- Baud Rate: 1200 bit/s, 2400 bit/s, 4800 bit/s, 9600 bit/s (predefinito), 19200 bit/s
Istruzioni per l'uso del prodotto
Installazione e configurazione
Users should connect the 4~20mA analog sensor to the interface on the top according to the line sequence. Set the acquisition frequency and sensor display settings through the UbiBot console. Ensure to input the upper and lower limits of the sensor range for calibration.
Connection with GS1-S Series Products
When using this converter with GS1-S series products, connect the GS1-S device to a DC 12V power supply. Pay attention to the voltage when connecting an analog sensor externally.
Istruzioni di cablaggio
- The top slots are labeled as follows:
- VDC – Power output positive
- Terra – Power output negative
- Analog channel IN1 – Analog channel IN4 for sensor connections
- The bottom slots are labeled as:
- VCC – Power output positive
- Terra – Power output negative
- RS-485 A, RS-485 B – Communication interface for RS-485
Data Management and Calibration
To set the acquisition frequency and sensor display settings, navigate to [Settings] – [Data Management] in the console. Use [Calibration Sensors] – [Platform-level Calibration] for inputting range limits for calibration.
Introduzione
4 ~ 20mA to RS-485 converter is an industrial standard analog acquisition product, small and portable. It can collect up to four channels 4 ~ 20mA analog signals, and convert them to the standard ModBus-RTU communication protocol with an RS-485 port, so as to be monitored by GS1-S series devices. It can also be directly connected to a PLC, industrial control instrument, configuration screen, or configuration software. Acquisition accuracy is 12-bit resolution, 0.1% accuracy. It can be widely used in industrial sites, distribution cabinets, and other places requiring analog signal acquisition.
Applicazioni
Widely used in industrial sites, power distribution cabinets, and other applications that need to collect analog signals.
Caratteristiche
- DC 9 ~ 36V Power supply with anti-reverse connection, over-voltage, and over-current protection
- 4 channels of 4~20mA current inputs
- 12-bit resolution, 0.1% accuracy
- Supporta il protocollo Modbus-RTU
- RS-485 communication interface with lightning protection and static protection
Specifiche
| Modello | UB-AI-N1 | |
| Alimentazione elettrica | DC 9 ~ 36V | |
|
Interfaccia analogica |
Collected Signal | 4 ~ 20mA |
| Numero di interfacce | 4 channels single terminal | |
| AD Conversion Resolution | 12 bit | |
| Precisione | 0.1% | |
| Max corrente | 269 mA (a 12 V) | |
| Ambiente di lavoro | -40 ~ 85℃, 0 ~ 95%RH | |
| Connettore | Audio | |
| Size / Cable length | 82*50*32mm /3m | |
| Protocollo di comunicazione | Protocollo Modbus RTU RS-485 | |
| Indirizzo RS485 | 0xDA | |
| Velocità in baud | 1200 bit/s, 2400 bit/s, 4800 bit/s, 9600 bit/s (predefinito), 19200 bit/s | |
Istruzione
Users connect the 4~20mA analog sensor to the interface on the top according to the line sequence, and set the acquisition frequency and sensor display settings through the UbiBot console. At this time, the uploaded data is the current value. Input the upper limit and lower limit of the 4~20mA analog sensor range through the platform-level calibration function on the console, and the platform will automatically calculate and convert the current value to the actual value.
When this converter is used with our company’s GS1-S series products, please connect the GS1-S device to a DC 12V power supply. At this time, the output voltage of the VDC interface is 12V. Please pay attention to the voltage when connecting the analog sensor externally.

6 slots on the top
| VDC | Power output positive | IN1 | Canale analogico 1 | IN3 | Canale analogico 3 |
| Terra | Power output negative | IN2 | Canale analogico 2 | IN4 | Canale analogico 4 |
6 slots at the bottom
| VCC | Power output positive | A+ | RS485A |
| Terra | Power output negative | B+ | RS485B |

Example:
4 ~ 20mA to RS-485 converter is connected to an atmospheric pressure sensor to obtain atmospheric pressure and temperature values. Atmospheric pressure range: 0 ~ 120kPa; temperature range: -40 ~ 80°C.
- Connect the atmospheric pressure sensor to the top, using analog channels 1 and 2, with the following sequence
4 ~ 20mA to RS485 converter Sensore di pressione atmosferica VDC Positivo di alimentazione Terra Negative power supply, negative temperature signal, negative air pressure signal
IN1 Positive temperature signal IN2 Alimentazione positiva - Set the acquisition frequency via the console, [Settings] – [Data Management]. Set the corresponding channel in the field of [Sensor Display Settings].

- Choose [Calibration Sensors] – [Platform-level Calibration], and click edit. According to the range, input the upper and lower range limits, and the platform will automatically calculate.
Istruzioni di cablaggio

Protocolli di comunicazione
Parametri di base della comunicazione
| Parametro di base della comunicazione | |
| Sistema di codifica | binario a 8 bit |
| Bit di dati | 8 bit |
| Bit di controllo della parità | nessuno |
| Stop bit | 1 bit |
| Controllo degli errori | Controllo CRC |
| Velocità in baud | 1200 bit/s, 2400 bit/s, 4800 bit/s, 9600 bit/s (predefinito), 19200 bit/s |
Formato frame dati
Il protocollo di comunicazione Modbus-RTU viene utilizzato nel seguente formato:
- Iniziale struttura≥ 4 byte nel tempo.
- Codice indirizzo: 1 byte, default 0xDA.
- Codice funzione: 1 byte, supporta il codice funzione 0x03 (sola lettura) e 0x06 (lettura/scrittura).
- Area dati: N byte, dati a 16 bit, il byte più alto viene prima.
- Controllo degli errori: Codice CRC a 16 bit.
- Struttura finale ≥ 4 byte di tempo.
Richiesta Indirizzo secondario Codice funzione Registra indirizzo N. di registri CRC LSB CRCMSB 1 byte 1 byte 2 byte 2 byte 1 byte 1 byte Risposta Indirizzo secondario Codice funzione N. di byte Contenuto 1 Contenuto 1 … Contenuto n CRC 1 byte 1 byte 1 byte 2 byte 2 byte … 2 byte 2 byte
Registra indirizzo
| Registra indirizzo | ||||
| Indirizzo | Contenuto | Lunghezza del registro | Codice funzione | Descrizione delle definizioni |
| 0x0000 | Channel 1 current value | 2 | 03 | Floating (IEEE 754 standard) |
| 0x0002 | Channel 2 current value | 2 | 03 | Floating (IEEE 754 standard) |
| 0x0004 | Channel 3 current value | 2 | 03 | Floating (IEEE 754 standard) |
| 0x0006 | Channel 4 current value | 2 | 03 | Floating (IEEE 754 standard) |
| 0x07D1 | Velocità in baud | 1 | 03 | 0:2400, 1:4800, 2:9600, 3:19200, 4:38400, 5:57600, 6:115200, 7:1200 |
Domande frequenti
What is the power supply range for UB-AI-N1?
The UB-AI-N1 supports a power supply range of DC 9 ~ 36V.
What communication protocol does UB-AI-N1 use?
UB-AI-N1 uses the Modbus-RTU protocol for communication.
How many analog channels are available in UB-AI-N1?
UB-AI-N1 provides four analog channels for collecting signals.
Documenti / Risorse
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UBIBOT UB-AI-N1 External Sensors for Accurate Monitoring [pdf] Guida utente UB-AI-N1 External Sensors for Accurate Monitoring, UB-AI-N1, External Sensors for Accurate Monitoring, Sensors for Accurate Monitoring, Accurate Monitoring |

