Beijer Electronics Korenix JetWave 4110L Manuel utilisateur

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JetWave 4110L Quick Start Guide 2

Reading the built in Modbus Registers on JW 4110L Wirelessly

Introduction

The JetWave4110L is outdoor industrial grade LoRa Gateway for the Serial to LoRa environment

monitoring market. The Gateway series equips with one embedded LoRa module, one M12

connecter, 1 serial port and 1 AI/DI and 1DO.

In the Quickstart Guide 1, we have already manage to setup the communication between 2 JetWave

4110L, in this example we will explore more on the Modbus Slave function built into the JetWave

4110L and what you can do with them.

JetWave 4110L

Objectives of this quick start guide

1. Setting up the Modbus function on the JetWave 4110L

2. Reading the values from Modbus registers on the JetWave 4110L

3. Making sense of the values

4. Simple troubleshooting techniques

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Overview

In part 1 we have successfully created a working data stream between a pair for JetWave 4110L, now

we will explore the Modbus Slave and functionalities built into the JetWave 4110L.

The JetWave 4110L has the following interfaces built for you to use as with Modbus slave:

•Digital / Analogue input

oUsing the same input pin, you will have to select the mode using the JetControl SW

during setup.

oModes:

▪Normal ADC (mV)

▪Logic High/Low

▪4~20mA (%)

▪0~10V (%)

▪4~20mA (mA)

▪0~20mA (%)

▪0~20mA (mA)

•Digital Output

oLatch mode

▪Open Drain

▪JetWave 4110L has internal pull up resistors in this mode

oPWM mode

▪Allows you to control output voltage level using PWM

▪Max = Voltage input on the JetWave 4110L

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Setting up the JetWave 4110L for basic wireless communication

What you will need:

Part Number

Description

Qty

F00W4110000000

[JetWave4110L] Industrial LoRa

Gateway

2 or more

F00A4110000000

USB to RS-485 adapter

1 ( recommended 2)

Power supply

Configuring laptop

Terminal software,

recommended TeraTerm

JetControl Software

Network Diagram:

Network Diagram

With the same basic configuration as part one, we will just connect unit A to PC / or any kind of

Modbus master and then have it read the data from the Modbus Addresses of Unit B.

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Connecting to the device using JetControl Software and configuration

Wiring to your Computer / Controller

Wiring to your Controller / Sensor / Relay

Unit A Device Settings

•Sames settings from Part 1, do not need to

change.

Unit B Device Settings

•Sames settings from Part 1

•However you need to set the Digital Output

/ Input type

How to setup the Digital Output / Input type using

the JetControl S/W

•Keep the same settings on both Device and

RF settings as part 1

•Head to I/O Pin Tab

•Under Input Pin Select what you require

•Write to device

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Putting your solution together

Reading the digital input values

Information taken from the user manual

To read the values from the Digital Input, the registers to read is 0x3000 (Hexadecimal value) which

converts to 12288 in decimal. Depend on the Modbus master you are using it may start with 0 or 1,

so the address might be 0x3000 or 0x3001 depending on the settings of the Modbus Master.

The software that I am using requires to use 0x3001 / 0d12288 instead.

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Example 1: 0~10V / normal ADC (mV)

In this example the device has already been setup to to by DI Type 0: 0~10V / normal ADC (mV)

As showed in the register will return value from 0 - 5000 (0 - 10000mV) which means each step of the

registers = 2mV

CAS Modbus Scanner and with my voltage set to about 4V on my power supply:

We were able to read 2221 from the register, using the formulae of DI_Value*2:

2221 * 2 = 4442mV

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CAS Modbus Scanner and with my voltage set to about 8V on my power supply:

We were able to read 4229 from the register, using the formulae of DI_Value*2:

4229* 2 = 8458mV

Troubleshooting Tips

•Status light is constantly blinking red

•Check the RS-485 connecting to make sure it has a solid connection or swap the

Tx/Rx pair if have to

•Text transmitted over terminal is not readable gibberish

•Check the Com Port Settings both on the Device and the Terminal Software to make

sure they match, both devices should have matching settings as well.

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About Beijer Electronics

Beijer Electronics is a multinational, cross-industry innovator that connects

people and technologies to optimize processes for business-critical applications.

Our offer includes operator communication, automation solutions, digitalization,

display solutions and support. As experts in user-friendly software, hardware and

services for the Industrial Internet of Things, we empower you to meet your

challenges through leading-edge solutions. Beijer Electronics is a Beijer Group

company.

Since its start-up in 1981, BEIJER GROUP has evolved into a multinational group

with sales of 1.4 billion SEK 2020. BEIJER GROUP is listed on the NASDAQ

Stockholm Main Market under the ticker BELE. www.beijergroup.com

Global offices and distributors

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