InHand InDTU332 Manual de usuario

InDTU332 & 324

USER MANUAL

Version: V1.0–November,2019

Declaration

Thank you for choosing our product. Before using the product, read this manual carefully.

The contents of this manual cannot be copied or reproduced in any form without the written permission

of InHand.

Due to continuous updating, InHand cannot promise that the contents are consistent with the actual

product information, and does not assume any disputes caused by the inconsistency of technical

parameters. The information in this document is subject to change without notice. InHand reserves the

right of final change and interpretation.

Conventions

Symbol Indication

< > Content in angle brackets “<>” indicates a button name. For example, the <OK> button.

"" '''' indicates a window name or menu name. For example, the pop-up window "New

User."

>A multi-level menu is separated by the double brackets ">". For example, the multi-level

menu File > New > Folder indicates the menu item [Folder] under the sub-menu [New],

which is under the menu [File].

Cautions Means reader be careful. Improper action may result in loss of data or device damage.

Note Notes contain detailed descriptions and helpful suggestions.

Add: 3900 Jermantown Rd., Suite 150, Fairfax, VA 22030 USA

E-mail: support@inhandneworks.com

T: +1 (703) 348-2988

URL: www.inhandnetworks.com

Contents

1 Product Overview...............................................................................................................................1

1.1 System Application.....................................................................................................................1

1.2 Function Description ..................................................................................................................1

1.2.1 Hardware..........................................................................................................................1

1.2.2 Software Functions..........................................................................................................2

2 Quick Start ..........................................................................................................................................5

3 Hardware description.........................................................................................................................6

3.1 Installation..................................................................................................................................6

3.1.1 InDTU332.........................................................................................................................6

3.1.2 InDTU324.........................................................................................................................8

3.2 LED Indicator..............................................................................................................................9

3.2.1 InDTU332.........................................................................................................................9

3.2.2 InDTU324.......................................................................................................................10

4 Configurations..................................................................................................................................11

4.1 Wiring.......................................................................................................................................11

4.2 Connecting the DTU to the Master Station..............................................................................11

4.3 TCP Server...............................................................................................................................16

4.4 Modbus-Net-Bridge..................................................................................................................19

4.5 Multi-application Center ...........................................................................................................21

4.6 Connecting the DTU to the DM Cloud Platform.......................................................................22

4.7 Transmission Mode..................................................................................................................24

4.8 ICMP/Link Maintenance Function............................................................................................24

4.9 Dual-SIM Switching Function...................................................................................................26

4.10 Maintenance...........................................................................................................................30

4.10.1 View Real-Time/ History Logs......................................................................................30

4.10.2 101 Detection...............................................................................................................33

4.11 Other Functions......................................................................................................................35

4.11.1 Login Settings for the Administrator.............................................................................35

4.11.2 Import/Export Configuration.........................................................................................35

4.11.3 Upgrade Device...........................................................................................................36

4.11.4 Power Mode.................................................................................................................39

4.11.5 Restoring Factory Settings...........................................................................................39

4.11.6 SNTP Time Synchronization........................................................................................40

4.11.7 Short Message Sending/Receiving..............................................................................41

5 FAQ....................................................................................................................................................44

6 Parameter Settings...........................................................................................................................46

6.1 Local Serial Port/Serial Port 2..................................................................................................46

6.2 Work Mode...............................................................................................................................47

6.3 GPRS Dialing...........................................................................................................................48

6.4 Application Center....................................................................................................................48

6.5 Multi-application Center ...........................................................................................................49

6.6 Multi-center mechanism...........................................................................................................50

6.7 Other Settings ..........................................................................................................................50

6.8 InHand Device Manager (DM) platform ...................................................................................51

6.9 Administrator Account..............................................................................................................51

6.10 ICMP ......................................................................................................................................52

6.11 User-Defined Packets............................................................................................................53

1 Product Overview

1.1 System Application

InDTU332/324 uses the wireless cellular network to complete remote data collection and transmission,

thus enabling remote monitoring in the industrial field. The typical network topology is shown as below.

Figure 1-1-1 network topology

1.2 Function Description

1.2.1 Hardware

It has the following features:

It is based on a high-performance microprocessor that integrates a wireless module

for wireless communication.

It supports a variety of industrial bus protocols, with good scalability.

Compact and easy-to-install design

Moisture proof, anti-interference design

Voltage range +5 to 35 V DC, meeting industry requirements

Industry-level temperature range: -40℃to +70℃

Figure 1-2-1 hardware structure

1.2.2 Software Functions

DTU332/324 implements wireless data communication between the serial port device in the remote

station and the central control system. The main functions are as follows:

Table 1-2-1 Basic functions

Function Description

Network Wireless cellular network

Serial port Special configure tool is DTU Tool, can configure DTU by any of serial port

Status Displays running status using LED.

Mounting mode Desktop installation or wall-mounting

Wireless DDN Supports the wireless DDN service of China Mobile and the VPDN service

of China Telecom and China Unicom.

Data transparent

transmission Transmits application data transparently in two directions.

Protocol conversion Custom UDP for DC and Modbus bridge

Long connection DTU will actively dial up and establish a PPP link.

Short connection DTU does not actively dial up and establish a PPP link. According to

different configurations, there will be different activation policies, and dialing

and networking will start after activation.

Local data active In short connection mode, the network can be activated via local data

transmission when the device is in hibernation

Phone active In short connection mode, when the device is in hibernation, the network

can be activated by phone call.

Auto active Start timing when entering sleep mode, reach the scheduled time, then

re-dial up

Auto offline Start timing from the successful dialing, and when the scheduled time is

reached, restart the communication module and enter the sleep mode.

Log Enables the log function to output logs through the serial port, helping

engineering personnel observe the device running status.

Multi-serial port

communication speed Baud rate: 1200-115200 bps

RS 232/485 Supports RS 232/485 communication. Depends on the device model.

Software watchdog Prevents accidental crash.

Hierarchical user

authentication

Supports two user levels: administrator and common user.

Default administrator user name/password: adm/123456;

Common user name/password: guest/123456.

Real-time clock

Upon power-off, a built-in super capacitance powers the RTC to avoid the

loss of system time. The power must persist for more than two hours;

otherwise, the clock is restored to the system time. Only some models

support this function.

Factory settings

restoration Clears settings and writes default settings. This function is implemented by

configuration program.

Table 1-2-2 Network functions

Function Description

PPP Point-to-point dialing protocol.

CHAP Authentication mode.

PAP Authentication mode.

Automatic

authentication.

Uses PAP and CHAP in turn.

When a client requests to go online, DTU performs PAP authentication first. If

the authentication fails, DTU performs CHAP authentication. If the

authentication fails again, DTU performs PAP authentication. The preceding

procedures are repeated.

PPP echo Maintains the connection between DTU and carrier network, preventing

forcible dormancy and detecting the stability of dialing connection.

ICMP detection Maintains the connection between DTU and peer host.

Application layer echo Detects the connection with application server by monitoring the heartbeat at

application layer. Eg. TCP keep-alive or user-define packet.

Table 1-2-3 Advanced functions

Function Description

Upgrade Locally upgrade by serial port or remotely upgrade by IP network

Import/export Exports configuration to files or imports configure file to device.

Log storage Stores key logs to the Flash memory, which can be read by using

configuration tool or serial port.

DM remote network Once enables the DM function, Through the DM platform, you can read and

management

update its configurations, read device status, perform remote upgrade, and

locate the base station.

RTOOL Remotely update the DTU firmware or configuration by RTool. The network

should be accessed between RTool side and DTU when using this function.

55 AA command Please refer the IHDMP user manual

Short message

management Supports remote configuration, forcible login, status query, and reboot.

Multi-center Supports multiple IP centers in poll or parallel mode.

The application cernter IP center must be configured firstly, and then

configure the extended center in sequence.

Link maintenance

To avoid network congestion caused by the problem of the operator network

optimization parameters, a byte of IP packets is sent to the detection host

every network idle interval after this function is enabled. (This function is

applicable only to V1.4.3 and later versions.)

The DM platform, for the use scenarios of the mainland and overseas, the corresponding

domain names are http://c.inhand.com.cn and http://g.inhandnetworks.com; the platform

also supports setup or install on the client's private server.

2 Quick Start

The procedure for quickly starting the InDTU as a client is as follows:

1. Correctly insert the SIM card.

2. Correctly connect the power cable, RS232/485 serial cable, and antenna.

3. Correctly configure the DTU parameters, including the IP address, APN, and port number.

4. Enable the DTU to communicate with the master station and read data from the terminal. For

details, see section 4.2 "Connecting the DTU to the Master Station.

5. Restart the device for the configurations to take effect.

6. Browse, count, and analyze data by using user software of the master station, such as DM

cloud platform software.

3 Hardware description

3.1 Installation

3.1.1 InDTU332

DTU332 is housed in a snap-type plastic shell. Figure 3-1-1 shows:

Figure 3-1-1

Open the case, slide the top cover, insert the SIM card correctly, and then close the top cover, as

shown in Figure 3-1-2.

Figure 3-1-2 Installing SIM card into DTU332

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