MAXREFDES145#: 8-Channel IO-Link Master
MAXREFDES145#为全球首款完全兼容IO-Link®的8端口IO-Link主机参考设计。设计使用TEConcept的IO-Link主机栈，既是IO-Link主机参考设计，又是IO-Link传感器/执行器开发和测试系统。八个IO-Link端口支持同时测试多达八个不同的传感器(或执行器)。参考设计具有八个可靠的内螺纹M12连接器，是最常用于IO-Link的连接器，随主机提供两根IO-Link电缆，可快速连接至兼容IO-Link的传感器和执行器。直流至交流(24VDC/1A)电源适配器可同时为每个端口提供至少125mA电流；如果有不使用的端口，则可提供更高电流。USB 2.0 B型连接器允许快速连接到Windows® PC.
简单易用的TEConcept Control Tool (CT) GUI软件具有IODD文件导入功能，使MAXREFDES145#成为任何致力于开发IO-Link产品的公司或工程师的必备工具。
特性
- 完全兼容IO-Link 1.1版
- TEConcept IO-Link主机栈
- 简单易用的TEConcept TC工具
- 8个IO-Link主机端口
- 随附所有电缆
- 可现场更新编程
竞争优势
- 8端口同时操作
- 易于使用的GUI软件
- IODD导入
应用
- 控制和自动化
- IO-Link传感器
- IO-Link执行器
详情介绍
Introduction
IO-Link is the first open, field bus agnostic, low-cost, point-to-point serial communication protocol, used for communicating with sensors and actuators, that has been adopted as an international standard (IEC 61131-9). IO-Link standardizes interoperability of industrial equipment from all over the world. IO-Link can function directly from the PLC or can be converted from all standard field busses to IO-Link through a gateway, quickly making it the defacto standard for universally communicating with smart sensors and actuators.
IO-Link is a single-drop digital communication interface (SDCI), which means there can only be one sensor or actuator per port. The 3-wire protocol is also backwards compatible with binary sensors and actuators that use standard input output (SIO). IO-Link device descriptor (IODD) files completely define the device and eliminate manual parameterization.
The MAXREFDES145# design utilizes four MAX14819 dual-channel Maxim Integrated IO-Link master transceivers, two on-board digital isolators, the efficient industrial MAX15062B step-down converter, an FTDI USB-to-SPI interface and an STMicroelectronics 32-bit ARM Cortex® M4 microcontroller (STM32F4) utilizing TEConcept’s CT Tool software and IO-Link master stack. Figure 1 shows the system block diagram.
Figure 1. The MAXREFDES145# reference design block diagram.
Detailed Description of Hardware
The MAXREFDES145# IO-Link master consists of 4 main blocks: four dual-channel MAX14819 IO-Link master transceivers, two digital isolators for the SPI interface, a microcontroller, and a USB connection as shown in Figure 1.
The MAX14819 IO-Link master transceivers are IO-Link version 1.1.2 physical layer compliant. These transceivers feature integrated 5V linear regulators, configurable C/Q outputs (push-pull, high-side, or low-side) with configurable output drive capability, auxiliary digital inputs, and reverse-polarity/short-circuit protection.
An STM32F4 ARM Cortex M4 microcontroller in a 10mm × 10mm, 64-pin LQFP package provides system control. A universal serial bus (USB) port is implemented using the FTDI FT2232 USB-to-SPI transceiver and driver. An on-board MAX15062B high-voltage, synchronous step-down converter provides power to the STM32F4 microcontroller from the 24V supply.
Two digital isolators, the 4-channel MAX14931F and the 2-channel MAX12931B, protect the USB interface from high-voltage and large ground differentials that can occur when the MAX14819 master transceivers are connected to IO-Link peripherals. All communication between the USB port/PC and the SMT32F4 microcontroller passes through these isolators.
A stand-alone SPI header (J3) is available on the MAXREFDES145# to allow the user to bypass the USB interface and directly communicate with the STM32F4 using an external SPI master. J3 is connected to the isolated side of the board and all digital communication from the external master to the STM32F4 goes through the isolators. An external 3.3V logic supply to power the isolators is required when using J3.
High-level protection transient voltage suppressor (TVS) diodes at each of the eight IO-Link interface ports and at the power supply inputs provide surge and reverse-polarity protection for each master transceiver on the MAXREFDES145#.
Additionally, power and status LEDs (for each channel) provide quick visual confirmation that the board is working and communicating.
Figure 2 shows the box contents for the MAXREFDES145# reference design.
Figure 2. MAXREFDES145# box contents.
The MAXREFDES145# box contents are:
- MAXREFDES145# 8-Port IO-Link Master
- TEConcept IO-Link Control Tool (CT) Software (Note1)
- AC-to-DC 24V/3A (min) Output Power Converter
- Two IO-Link cables
- USB 2.0 Type B cable
Necessary downloadable software includes:
- TEConcept IO-Link Control Tool (CT) software (Note 1)
- FTDI Driver (Note 1)
Note 1: Download files from the Design Resources tab
Figure 3 shows the MAXREFDES145# system connected to a laptop running TEConcept's CT Tool. The MAXREFDES145# typically consumes 24mA from the 24V supply at 25°C with no sensors attached.
Figure 3. MAXREFDES145# system connected and running.
Detailed Description of Software
TEConcept CT Windows-compatible GUI software features IODD file import capability, connects to a PC through USB, and is available to download from the Design Resources tab. of the MAXREFDES145# webpage. The TEConcept CT software is shown in Figure 4 and a complete step-by-step Quick Start guide is also downloadable from the Design Resources tab.
Figure 4. MAXREFDES145# TEConcept CT tool.
The TEConcept IO-Link master stack ships preprogrammed inside the MAXREFDES145# hardware with an infinite time license displayed by the TEConcept CT software.
TEConcept GMbH Contact Information
BTEConcept GmbH
Wentzingerstr. 21
D-79106 Freiburg
Tel. +49 761 21443640
Fax +49 761 21443631
Email: info@teconcept.de
www.teconcept.de/Contact.php
Quick Start
Required equipment:
Supplied by Maxim:
- MAXREFDES145# (box contents)
- MAXREFDES145# 8-port IO-Link master
- TEConcept IO-Link Control Tool (CT) software (Note 1)
- AC-to-DC 24V/3A output power converter
- Two IO-Link cables
- USB 2.0 Type B cable
User-supplied:
- Windows 7, Windows 8, or Windows 10 PC with a USB port
- IO-Link sensor or IO-Link actuator (Note 2)
Note 1: Download files from the Design Resources tab.
Note 2: Maxim Integrated offers multiple IO-Link sensor reference designs for immediate operation with the IO-Link master. Refer to MAXREFDES23#, MAXREFDES27#, MAXREFDES36#, and MAXREFDES42#.
Download, read, and carefully follow each step in the MAXREFDES145# Quick Start Guide.
IO-Link Compliance Report
The MAXREFDES145# is a fully compliant IO-Link version 1.1 master according to the following test report. It was tested with golden device GD000010. See the test report for details: MAXREFDES145# 8-Port IO-Link Master Test Report
Reference
- IO-Link System Description 2013 by IO-Link Company Community. Page 3, Preface. http://www.io-link.com/share/Downloads/At-a-glance/IO-Link_System_Description_engl_2013.pdf
IO-Link is a registered trademark of Profibus User Organization (PNO).
ARM and Cortex are registered trademarks and ARM is a registered service mark of ARM Limited.
Windows is a registered trademark and registered service mark of Microsoft Corp.