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Description: MODBUS 通信源代码 MODBUS通訊協定原本是MODICON公司為自己所生產的PLC(可程式邏輯控制器)所開發的通訊協定，後來廣泛為工業界所使用，它是一對多的方式來通訊，目前他是採開放的方式不需支付任何費用，任何人皆可開發，所以目前許多PLC、人機介面及圖控軟體都有支援。-MODBUS communication protocol MODBUS source code was originally MODICON for their production of PLC (programmable logic controller) protocol developed by, and later widely used for the industrial sector, which is one-to-many approach to communications, he way is open at no cost, anyone can develop, so many PLC, man-machine interface and control software have support plans.
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Size: 30720 |
Author: chen jin |
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Description: 本文详细地介绍了如何从RS-232信号线上高效率地产生电源如何实现RS-232
接口与RS-485/RS-422接口的智能转换同时也给出了具体的硬件设计及软件设计方法-This article describes in detail how the signal from the RS-232 line of high efficiency power generation how to achieve the RS-232 interface with RS-485/RS-422 Interface Converter also gives the specific hardware design and software design methodology
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Size: 159744 |
Author: liuhaifeng |
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Description: S7-300PLC与变频器通过485串口的通讯例子程序-S7-300PLC and converter serial communications through the 485 examples of the procedures
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Size: 299008 |
Author: 李元 |
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Description: 利用三菱MXComponent程序进行与fx2n,Q系列等PLC的通讯测试程序。有读取plc自带通讯口，或者232口，或者485通讯三种方式，方便工控人员学习用-Mitsubishi MXComponent use of procedures and fx2n, Q series PLC communications test procedure. Have read Communications plc own mouth, or 232, or 485 in three ways to facilitate learning by IPC
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Size: 231424 |
Author: mickey |
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Description: “任何设备皆可上以太网”，S-ET是最简单、智能的转换器，可轻松地将只有RS232/422/485的设备连到TCP/IP网络中。通过简单的增加一个S-ET转换器马上就可连接以太网，得以获取高集成都的设备服务。有了S-ET，CNCs、电表、冰水盘、火警盘、读卡器、PLC、传感器、UPS等设备将成为以太网上的强有力工具。-" Any equipment can be on Ethernet" , S-ET is the most simple, intelligent switches, can easily be only RS232/422/485 devices connected to TCP/IP network. Through simple addition of a S-ET converter can immediately connect Ethernet, to obtain both a high level of integration of equipment services. With the S-ET, CNCs, electricity meters, ice plates, fire plate, reader, PLC, sensors, UPS and other devices will become a powerful tool for Ethernet.
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Size: 583680 |
Author: sjm |
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Description: 本书详细介绍了利用Visual C++进行串口通信编程的各种方法和技巧，并通过生动的讲解和丰富的应用实例让读者进一步学习并掌握这一技术。本书共分9章，内容主要包括数据通信的基本概念、串口通信的RS- 232C/RS-485/RS-422标准、并口通信的IEEE 1284 1994标准、Modem的基础知识和AT命令集、传真机的传真协议、PLC(可编程逻辑控制器)和单片机等。-The book details the use of Visual C++ for serial communication of a variety of programming methods and techniques, and through vivid and rich on the application to allow readers to learn and master this technology. The book is divided into 9 chapters, mainly including the basic concepts of data communications, serial communications, RS-232C/RS-485/RS-422 standard parallel port communications IEEE 1284 1994 standard, Modem in basic knowledge and the AT command set , fax machines, fax agreement, PLC (programmable logic controller) and single-chip and so on.
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Size: 11023360 |
Author: 章红军 |
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Description: 工控源代码,plc编程好东西,内有说明,文字-Industrial Source
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Size: 10240 |
Author: 郝军 |
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Description: DUT系列数据采集模块将温度传感器（热电阻，热电偶等）的输出信号或电流、电压直接转换成数字量，通过RS-485总线及标准通信协议将数据传送给主机。在模块上由89C51单片机管理模块自动工作，通道转换、ADC启动、采集数据、参比端补偿（热电偶）、引线电阻补偿（热电阻）、数字校零、非线性校正和数据处理等，均由单片机完成，主机仅在需要数据时，发送读取数据命令，模块给出已经线性化了的温度的数字量。通讯协议兼容台湾研华ADAM4000系列和松下PLC的通讯协议，可以与大多数组态软件直接连接，不需要额外的驱动程序，技术人员不需要有温度检测专门知识和编程能力即可使用。本产品主要用于各种现场的数据采集和控制系统。-DUT Series data acquisition module temperature sensor (RTD, thermocouples) De Shuchuxinhao or the current, voltage directly into Shuzi amount, via RS-485 bus, and data transfer standard communication agreement Ji Zhu Ji. 89C51 microcontroller in the module by the management module automatically, channel conversion, ADC start, collecting data, reference junction compensation (TC), lead resistance compensation (thermal resistance), digital calibration, linear calibration and data processing by the MCU to complete, the host only needs the data to send read data command, the module has been given a linear temperature of the digital. Communication protocol compatible with Advantech ADAM4000 series and the Panasonic PLC s communication protocol, can be directly connected with most of the configuration software, no additional drivers, technicians do not have temperature sensing capabilities and programming expertise to use. This product is mainly used for a variety of field data acquisition a
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Size: 3546112 |
Author: 刘学伟 |
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Description: 三菱PLC的485从站通信程序 -Mitsubishi PLC Communication Program 485
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Size: 10240 |
Author: 小宇 |
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Description: Modbus协议最初由Modicon公司开发出来，在1979年末该公司成为施耐德自动化(Schneider Automation)部门的一部分，现在Modbus已经是工业领域全球最流行的协议。此协议支持传统的RS-232、RS-422、RS-485和以太网设备。许多工业设备，包括PLC，DCS，智能仪表等都在使用Modbus协议作为他们之间的通讯标准。有了它，不同厂商生产的控制设备可以连成工业网络，进行集中监控。-Modicon Modbus protocol originally developed by the out at the end of 1979 it became the Schneider Automation (Schneider Automation) department as part of Modbus is now the world' s most popular industrial protocol. The protocol supports a traditional RS-232, RS-422, RS-485 and Ethernet devices. Many industrial equipment, including PLC, DCS, intelligent instruments and so on using the Modbus protocol as standard for communication between them. With it, different manufacturers of industrial control equipment can be connected into the network, centralized control.
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Size: 43008 |
Author: changshun |
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Description: plc与labview通过485通讯读取AD-plc and labview read 485 AD
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Size: 33792 |
Author: 李婧瑶 |
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Description: 单片机（stc89c52）通过RS485与PLC通信，采用modbus协议，利用单片机闲置的一个管脚置高或低，来判断出现单片机程序执行的情况。硬件连接比较简单，单片机通过485的A/B端连接到RS485/RS422，RS422连接但PLC。这个就是.c程序不是工程文件，下载后自己建立个keilC工程就可以了。-SCM (stc89c52) via RS485 communication with the PLC, using modbus protocol, using SCM idle a pin high or low, to determine the circumstances microcontroller program execution occurs. Relatively simple hardware connection, the microcontroller 485 A/B terminal is connected to the RS485/RS422 through, RS422 connection but PLC. This is not a project file .c program he established a keilC project after downloading it.
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Size: 3072 |
Author: 蓝色风 |
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Description: 实现PLC和外设D,AX521通讯！应用PORT0口！485通讯！(Implement PLC and peripheral D, AX521 communication! Apply PORT0 port! 485 communications!)
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Size: 19456 |
Author: 坏丫丫
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Description: VB与三菱FX系列PLC通信程序.rar(vb plc connection via 485
this is very important)
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Size: 604160 |
Author: chnzbq
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Description: MODBUS RTU 485 单台仪表通信取数(The number of MODBUS RTU 485 single meter communication)
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Size: 24576 |
Author: wmy_lyzc
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Description: 信捷PLC与变频器进行485通讯，可以采用modbus协议通讯(Xinje PLC and frequency converter are 485 communications, can use Modbus protocol communication)
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Size: 4480000 |
Author: 洪铁锤丶
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Description: stm32与三菱PLC fx3u通过RS485进行无协议通信(STM32 and MITSUBISHI PLC FX3U have no protocol communication through RS485.)
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Size: 5241856 |
Author: zhao7327 |
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Description: modbus通讯库，MODBUS-RTU的485通讯程序,MODBUS协议详解(Modbus communications library,MODBUS-RTU 485 communication program, detailed solution of MODBUS protocol)
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Size: 1035264 |
Author: zx1314921 |
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Description: CPU STM32F103 程序资源配置： X输入：32路 Y输出：16路 AD模拟量输入：6路，支持0-10V/4-20ma DA输出：2路 232串口：1路 485通讯：2路 CAN总线：1路 支持时钟RTC产品资源描述： 1、2路脉冲输入（X0~X1）或2路AB编码器（AB0:X0、X1和AB1:X3、X4） 2、2路脉冲输出（Y0和Y1，涉及指令PWM、PLSY）? 3、1路232通信（支持编程口协议） 4、2路485通信（支持Modbus协议） 5、1路CAN通讯，通过共享寄存器方式扩展 6、6路ADC（2路0-20MA电流或者0-10V电压采集） 7、2路DAC输出（4-20MA电流或0-10V输出） 8、RTC日历时钟 9、支持各类触摸屏(cpu STM32F103V FX3U V8.0)
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Size: 14114816 |
Author: 开心石头 |
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Description: vb控制三菱PLC(485端口Ｍodbus通讯），测试ok(vb rs485 conmunication with MITSUBISHI plc by modbus protocol)
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Size: 7168 |
Author: hank.suz |
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