USER GUIDE FOR ICONNECTOR 3G STHC-B-ISG02DB-03

STHC-B-ISG02DB-03-MN-EN-01 

Jul-2020

This document is applied for the following products
SKU STHC-B HW Ver. 1.1 FW Ver. 1.4
Item Code STHC-B-ISG02DB-03

Iconnector 3g Dualband, internal antenna, 1 x battery size D 3.6VDC and external DC power, 1 x pulse input, 1 x 4-20mA input with 15v supply to external sensor, Ip67, 1 x M12-M for power, 1 x M12-F for IO

1. Functions Change Log

HW Ver. FW Ver. Release Date Functions Change
1.1 1.4 Jun-2020  

2. Introduction

STHC-B is same as STHC, is a Smart IoT Gateway, aka iConnector, a main component in any IoT application. However, STHC-B is operated by a Primary battery 3.6V, suitable for applications where no grid power like Water pipeline, water network...In addition, STHC-B is also powered by external power supply 7..48VDC or Solar panel system. STHC-B has built-in 1 Pulse input to read the Pulse from flow meter...and 01 Digital input can connect to Pressure sensor, Level, Temperature, Humidity... Data will be sent back to server for data logging, data analytics, monitoring & controls...With Ultra low power design, it can uses 01 battery size D for up to 05 years (depend on configuration of data logging and sending).

STHC-B-H1.png

3. Specification

Host Communication GPRS Quadband/3G-Dual band/NB-IoT, internal antenna
Host communication supports TCP/IP, UDP/IP, FTP, HTTPS, SNMP...
Vietnam Type Approval Cerification QCVN 54:2011/BTTTT, QCVN 15:2015/BTTTT (DAVITEQ B00122019)
Analog Input 1 x 4-20ma input with 15v supply to external sensor
Pulse Input 1 x Pulse input with counting function, dry-contact, max 1Hz, auto-reset counter when reaching 9 digits
Digital Sensor Input 1 x Digital sensor input for DULP sensor type (Digital Ultra Low Power ), M12 connector, IP67
Battery Supply 1 x D size battery holder, 3.6VDC
External Power Supply 7..48VDC, avg 200mA, peak 1.5A
Back-up battery Lithium Super Capacitor (to alert shortage of power supply)
On-board logging 2MB Flash
SIM slot 01 x micro-SIM
Operating Temperature -20 .. + 85 degC (refer temperature working range of Battery being used)
Dimension H110xW110xD70
Housing Poly-carbonate housing, IP67, wall mount pads
Net weight < 250 g (excluded Battery and Sensor)

4. Applications

STHC-B-H2-2.png STHC-B-H3-2.png
STHC-B-H4-2.png wiring.png

5. Operation principle

5.1 Process of measurement

When the sensor sampling interval is reached, for example, 2 minutes (Battery Mode), iConnector will wake up and turn ON the power to supply power to the external sensor to start measuring. Depending on the type and characteristics of the external sensor, it may take a certain time to complete the measurement.

For example, the measurement time is 200mS, after this time, iConnector will read the value of the sensor by I2C, it will switch the power OFF to the external sensor to save energy.

If we supply external power through M12 connector, iConnector will run realtime.

After reading the sensor value, the raw data is X, it can be scaled to any technical value by the following formula:

Y = aX + b

Where

X: the raw value from sensor

Y: the calculated value for parameter 1's value or parameter 2's value

a: constant

b: constant

 

So, if there is no user setting for a and b ==> Y = X

The Y value will be compared with Lo and Hi threshold.

5.2 Configuration via Memory map

We can configure online using the memmaps shown in the table below:

ADDRESS

(in decimal)

ADDRESS

(in hex)

LENGTH

(in byte)

TYPE NAME DESCRIPTION UNIT Server
8960 2300 4 float power supply External power supply voltage volt R
8964 2304 4 float battery Battery voltage volt R
8982 2316 1 byte  gsm signal quality GSM signal strength   R
902 386 4 uint32 I2C: sample_rate (sec)

sensor reading cycle, e.g: 60 seconds.

 sec R/W
906 38A 2 uint16 I2C: calc_time (ms) time of supplying power to the sensor before reading the I2C, e.g: 200 ms.  ms R/W
908 38C 2 uint16 I2C: num_of_sample

The number of ADC samples taken in a reading of sensor data, the more samples the longer the sensor reading time.

For example: 8 samples with each sample have a reading time of 10ms, then the total sampling time is 80ms.

   
910 38E 4 float I2C: prm1_a

The a constants after calculation according to the formula

  R/W
914 392 4 float I2C: prm1_b

The b constants after calculation according to the formula

  R/W
918 396 4 float I2C: prm1_hi_cut

Cut the upper threshold of I2C

e.g: If prm1_scaled_value > prm1_hi_cut then prm1_scaled_value = prm1_hi_cut

  R/W
922 39A 4 float I2C: prm1_lo_cut

Cut the lower threshold of I2C

e.g: If prm1_scaled_value < prm1_lo_cut then prm1_scaled_value = 0.

  R/W
9398 24B6 1 uint8 I2C: sensor type Sensor type = 20 means that the I2C sensor reads 4-20mA   R/W
9399 24B7 1 uint8 I2C: error status if error status = 0, it means the sensor reading is OK, else error status = 1 is faulty.   R/W
9400 24B8 4 float I2C: prm1_scaled_value

The measured value has been scaled for the sensor

Formula to calculate scale:

prm1_scaled_value = prm1_raw_value * prm1_a + prm1_b

  R/W
9408 24C0 4 float I2C: prm1_raw_value

Raw sensor value read from I2C

  R/W

5.3 Offline configuration

5.3.1 Connection

First, you need to prepare

prepare.png

  • Step 1: Open the cover of the iConnector

STHC-B-H13.png

  • Step 2:Connect the Configuration Cable to the UART Port in iConnector

STHC-B-H14.png

  • Step 3: Power the iConnector via M12 male connector on iConnector

STHC-B-H12.png

STHC-B-H15.png

  • Step 4: Connect the USB port of the Configuration Cable to the Computer

STHC-B-H16.png

 

 

5.3.2 Configuration tool
  • You can download Configuration Tool with the following link:

https://filerun.daviteq.com/wl/?id=s5QApxosVNZLbATxi0TtKVoJX4ms1PxD 

How to use the Modbus configuration software 

  • Unzip file and run file application "iconnector_config"

image-1593661289234.png

  • Choose COM Port (the Port which is USB cable plugged in)
  • Set the BaudRate: 9600, Parity: none

STHC-B-H9.png

  • Click “ Connect “ untill the Status displays “disconnected” to “connected“. It means the iConnector is being connected with computer;
  • Configuration parameters:

STHC-B-H10.png

    • Write in the Setting column the data to be configured into iConnector
    • Click Sync to synchronize data into iConnector
    • After synchronizing the data into iConnector, if the data displayed in the Value column shows the corresponding data, the configuration is completed.

5.4 SIM configuration

iConnector 3G uses micro-SIM and needs to be configured to use the data network

  1. Open iConnector cover and install the SIM cardSTHC-B-H17.png
  2. Based on the information of the mobile carrier that provides the SIM card, we configure data such as APN, username, password on the 2G/3G tabSTHC-B-H18.png

5.5 Configure sensor parameters on the iConnector

5.5.1 Configure I2C_Sensor tab

We configure the parameters of 4-20mA sensor in I2C Sensor tab:

STHC-B-H10.png

I2C: sample_rate (sec)

sensor reading cycle, e.g: 60 seconds.

I2C: calc_time (ms) time of supplying power to the sensor before reading the I2C, e.g: 200 ms.
I2C: num_of_sample

The number of ADC samples taken in a reading of sensor data, the more samples the longer the sensor reading time.

For example: 8 samples with each sample have a reading time of 10ms, then the total sampling time is 80ms.

I2C: prm1_a

The a constants after calculation according to the formula

I2C: prm1_b

The b constants after calculation according to the formula

I2C: prm1_hi_cut

Cut the upper threshold of I2C

e.g: If prm1_scaled_value > prm1_hi_cut then prm1_scaled_value = prm1_hi_cut

I2C: prm1_lo_cut

Cut the lower threshold of I2C

e.g: If prm1_scaled_value < prm1_lo_cut then prm1_scaled_value = 0.

I2C: sensor type Sensor type = 20 means that the I2C sensor reads 4-20mA
I2C: error status if error status = 0, it means the sensor reading is OK, else error status = 1 is faulty.
I2C: prm1_scaled_value

The measured value has been scaled for the sensor

Formula to calculate scale: prm1_scaled_value = prm1_raw_value * prm1_a + prm1_b

I2C: prm1_raw_value

Raw sensor value read from I2C

5.5.2 Operation mode of iConnector with different power sources

When iConnector only works with D type battery:

  • 3G network will turn off, only when the 3G data sending cycle is turned on to send data, after sending it will turn off.
  • Not sending a ping leads to iConnector not running realtime, unable to sync from the server.
  • Unable to configure from iConfig software.

When iConnector is connected to 7-48VDC power source:

  • 3G network is always on, running Ping and ready to receive realtime, synchronization, running full of features.
  • Can be configured from iConfig software.

6. Installation

6.1 iConnector Installation

Installed on a wall or in non-metal box.

DO NOT install iConnector inside a complete metallic box or housing. The signal can not pass through metallic wall.

iConnector should be installed in a semi-metallic box.

Some non-metallic materials: plastic, glass, wood, leather, concrete, cement…

STHC-B-H21.png STHC-B-H20.png

6.2 IO Wiring & Sensor installation

wiring.png

STHC-B-H26.png STHC-B-H27.png

Install the sensor as shown below:

STHC-B-H32.png

  • Step 1: Open the back cover of the sensor

STHC-B-H22.png

  • Step 2:Wiring to sensors

STHC-B-H29.png

STHC-B-H23.png

 

STHC-B-H24.png

  • Step 3: Connect Sensor to Input 4 .. 20mA port of iConnector via M12 connector 

STHC-B-H25.png

For more information about DP transmitter:

https://filerun.daviteq.com/wl/?id=lT9lfZuEQUQksWLhFgSoQrs28sEGY0Kt 

6.3 Power Supply & Battery installation

6.3.1 Power Supply of iConnector

Connect 7 .. 48VDC power supply to iConnector via M12 Male connector

STHC-B-H27.png

Use M12 female connection cable to connect to iConnector

STHC-B-H28.png

STHC-B-H15.png

6.3.2 Battery installation

Steps for battery installation:

  • Step 1: Using Flat Tip Screwdrivers to open the cover

STHC-B-H13.png

  • Step 2: Carefully pull out the top plastic housing

STHC-B-H30.png

  • Step 3: Insert the type D battery 3.6VDC, please take note the poles of battery

STHC-B-H31.png

  • Step 4: Insert the top plastic housing and locking by Flat Tip Screwdrivers

7. Troubleshooting

No. Phenomena Reason Solutions
1 The value of the sensor is 0


Sensor connecting 4-20mA is loose/not connected Check sensor connection
2 The iConnector does not connected to the sever
  • No power supply
  • The network information of the SIM card data is incorrect
  • No SIM card inserted
  • Check the power supply
  • Check that the battery is empty or not installed correctly
  • Check the sim card configuration section
3 The battery drains quickly Turn On/Off tab configuration is incorrect Check the configuration of the Turn On/Off tab