回到顶部

MAXREFDES63#: 8-Channel Digital Output Micro PLC Card

MAXREFDES63

参考设计免责声明 参照  重要声明和免责声明  涵盖参考设计和其他Maxim资源

描述

Introduction

Industry 4.01 marks the fourth industrial revolution, characterized by distributed, intelligent control systems. Breaking from a past with large, centralized programmable-logic controllers, Industry 4.0 allows for highly configurable, highly modular factories, which accept an ever increasing number of sensor inputs, while operating at a higher output than ever before. The ultra-small PLC, or MicroPLC, lies at the heart of the Industry 4.0 factory, providing high performance with ultra-low power consumption, in an ultra-small package. MAXREFDES63# is Maxim Integrated’s Micro PLC octal-channel, digital output card.

The MAXREFDES63# reference design (Figure 1) features eight-channel digital outputs with isolated power and data. The design integrates a 600VRMS data isolation (MAX14850); a STM32F1 microcontroller; a FTDI USB-UART bridge; a high-efficiency DC-DC converter (MAX17515); and isolated/regulated +22V, and +5V power rails (MAX17498C). The entire system typically operates at less than 400mW and fits into a space roughly the size of a credit card.


Figure 1. The MAXREFDES63# reference design block diagram.

特征

  • Isolated power and data
  • Micro PLC form factor
  • Device drivers
  • Example C source code

  • maxrefdes63fig00

    maxrefdes63fig00

  • MAXREFDES63

    This eight channel digital output reference design is in the micro PLC form factor. The on-board microcontroller controls the digital outputs, which can be configured through a terminal program. The design features isolated power and data. MAXREFDES63

  • maxrefdes63fig04

    maxrefdes63fig04

  • maxrefdes63fig05

    maxrefdes63fig05

Icon

设计, 制作, 测试

图中的电路板已经完成封装和测试。

 

细节部分

细节部分


Introduction

Industry 4.01 marks the fourth industrial revolution, characterized by distributed, intelligent control systems. Breaking from a past with large, centralized programmable-logic controllers, Industry 4.0 allows for highly configurable, highly modular factories, which accept an ever increasing number of sensor inputs, while operating at a higher output than ever before. The ultra-small PLC, or MicroPLC, lies at the heart of the Industry 4.0 factory, providing high performance with ultra-low power consumption, in an ultra-small package. MAXREFDES63# is Maxim Integrated’s Micro PLC octal-channel, digital output card.

The MAXREFDES63# reference design (Figure 1) features eight-channel digital outputs with isolated power and data. The design integrates a 600VRMS data isolation (MAX14850); a STM32F1 microcontroller; a FTDI USB-UART bridge; a high-efficiency DC-DC converter (MAX17515); and isolated/regulated +22V, and +5V power rails (MAX17498C). The entire system typically operates at less than 400mW and fits into a space roughly the size of a credit card.


Figure 1. The MAXREFDES63# reference design block diagram.

Detailed Description of Hardware

The power requirement is shown in Table 1.

Table 1. Power Requirement for the MAXREFDES63# Reference Design

Power Type Input Voltage (V) Input Current (mA, typ)
On-board isolated power 24 15 (All LEDs on) + Load Current

Note: STM32 and FTDI are powered by USB separately.

The MAX14900 (U400) is an octal power switch with per-channel configuration feature.

The ultra-efficient MAX17498C (U102) generates the isolated +22V, and +5V rails from a 24V supply. The MAX14850 (U301) digital data isolators provide data isolation. The combined power and data isolation achieved is 600VRMS.

The MAX17515 (U101) step-down DC-DC converter converts the +5V supply from the USB to +3.3V and powers the STM32 (U1) microcontroller and FTDI (U201) USB-UART bridge.

Detailed Description of Firmware

The MAXREFDES63# uses the on-board STM32F1 microcontroller to communicate with the octal power switch. The user enters configuration data through a terminal program and the digital outputs will be updated. The simple process flow is shown in Figure 2. The firmware is written in C using the Keil µVision5 tool.


Figure 2. The MAXREFDES63# firmware flowchart.

The complete source code is provided to speed up customer development. Code documentation can be found in the corresponding firmware platform files.

Quick Start

Required equipment:

  • Windows® PC with a USB port
  • MAXREFDES63# board
  • 24V power supply

Procedure

The complete source code is provided to speed up customer development. Code documentation can be found in the corresponding firmware platform files.

  1. Turn off or keep off the 24V power supply.
  2. The MAXREFDES63# utilizes the FTDI USB-UART bridge IC. If Windows cannot automatically install the driver for the FTDI USB-UART bridge IC, the driver is available for download from www.ftdichip.com/Drivers/D2XX.htm.
  3. Connect the negative terminal of the 24V power supply to the PGND connector on the MAXREFDES63# board. Connect the positive terminal of the 24V power supply to the +24V connector on the MAXREFDES63# board.
  4. Turn on the 24V power supply.
  5. Connect the USB cable from the PC to the MAXREFDES63# board.
  6. Open Hyperterminal or similar Terminal program on the PC. Find the appropriate COM port, usually a higher number port, such as COM4, or COM6, and configure the connection for 921600, n, 8, 1, none (flow control).
  7. The MAXREFDES63# software will display a menu (Figure 3)
  8. Press any key in the terminal program to start the output configuration.
  9. Enter the Configuration Byte in hex format.
  10. Enter the desired output data in hex format.
  11. Verify the output status by observing the 8 green LEDs under connectors J400 and J401 on the board. These LEDs are connected to the digital outputs of the card.

Terminal program main menu.
Figure 3. Terminal program main menu.

Lab Measurements

Figure 4 and Figure 5 shows the status of the LEDs with the output configuration byte set to 0xFF and the output data byte set to 0xAA.

Test setup.
Figure 4. Test setup.

Test outputs.
Figure 5. Test outputs.

Reference

  1. The new generation of manufacturing production is called Industry 4.0 in Germany and Smart Manufacturing System elsewhere. See, Securing the future of German manufacturing industry, Recommendations for implementing the strategic initiative INDUSTRIE 4.0, Final report of the Industrie 4.0 Working Group, Industry 4.0 Working Group, Acatech National Academy of Science and Engineering, April 2013, https://www.acatech.de/wp-content/uploads/2018/03/Final_report__Industrie_4.0_accessible.pdf. Henceforth cited as Industrie 4.0. Although the Industrie 4.0 report is focused on Germany, the implications of the German research and findings are recognized for industry in other countries. See also Ferber, Stefan, “Industry 4.0 – Germany takes the first steps toward the next industrial revolution,” Bosch Software Group, Blogging the Internet of Things, October 16, 2013, http://blog.bosch-si.com/industry-4-0-germany-takes-first-steps-toward-the-next-industrial-revolution/.

    There are many sources for Smart Manufacturing Leadership. An interesting summary report of issues and topics can be found at the Smart Manufacturing Leadership Coalition Committee Working Meeting, Minneapolis, MN, U.S., Thursday, October 20, 2011, https://smart-process-manufacturing.ucla.edu/workshops/2011-workshop/presentations/SMLC%2010-20-11v3.pdf. Also see, Implementing 21st Century Smart Manufacturing, Workshop Summary Report, Smart Manufacturing Leadership Coalition, June 24, 2011, https://smart-process-manufacturing.ucla.edu/about/news/Smart%20Manufacturing%206_24_11.pdf. A simple web search on the topic will reveal considerably more references.

Windows is a registered trademark and registered service mark of Microsoft Corporation.

参数化

输入类型 Vin(Min) Vin(Max) Iout(Max) 单路/多路输出 Vout(V) Pout(W) 隔离/非隔离 拓扑
DC 24 - - - - - Isolated Flyback

参数化

输入类型 DC
Vin(Min) 24
Vin(Max) -
Iout(Max) -
单路/多路输出 -
Vout(V) -
Pout(W) -
隔离/非隔离 Isolated
拓扑 Flyback

Maxim设备 (4)

器件号 名称 产品线 购买 设计套件和评估模块
MAX17515 5A、2.4V至5.5V输入、高效电源模块 开关稳压器 立即购买 Design Kits
MAX17498C AC-DC和DC-DC峰值电流模式转换器,支持反激/Boost应用 隔离电源 立即购买 Design Kits
MAX14850 六通道数字隔离器 隔离IC 立即购买 Design Kits
MAX14900E 八通道、高速、工业高边开关 MOSFET驱动器和控制器 立即购买 Design Kits

Maxim设备 (4)

器件号 产品线
开关稳压器
5A、2.4V至5.5V输入、高效电源模块
隔离电源
AC-DC和DC-DC峰值电流模式转换器,支持反激/Boost应用
隔离IC
六通道数字隔离器
MOSFET驱动器和控制器
八通道、高速、工业高边开关

设计资料 (6)

标题 类型 尺寸 日期
maxrefdes63_cad_ra ZIP 349KB 2017-11-03
No Title PDF 330KB 2019-07-09
No Title PDF 1MB 2019-07-09
rd63_stm32f1_v01_00 ZIP 2MB 2019-07-09
rd63v01_00 ZIP 5MB 2019-07-09
maxrefdes63_bom_ra PDF 912KB 2019-07-09
日期 类型
2017-11-03

maxrefdes63_cad_ra

(ZIP, 349KB)

2019-07-09

No Title

(PDF, 330KB)

2019-07-09

No Title

(PDF, 1MB)

2019-07-09

rd63_stm32f1_v01_00

(ZIP, 2MB)

2019-07-09

rd63v01_00

(ZIP, 5MB)

2019-07-09

maxrefdes63_bom_ra

(PDF, 912KB)

MAXREFDES63 相关视频

查看所有视频