大约有 4,500 项符合查询结果(耗时:0.0130秒) [XML]
Modbus硬件控制02——modbus继电器 - 创客硬件开发 - 清泛IT社区,为创新赋能!
本帖最后由 mzb2012 于 2025-07-15 12:26 编辑
一、概述
该模块是一款以专用集成电路为核心的经济型MODBUS-485继电器模块,实现了标准MODBUS-485通信功能。它可以与9V,12V或24V电压配合使用。本模块支持所有常见波特率、停止位和校验...
Modbus硬件控制03——485串口助手控制继电器 - 创客硬件开发 - 清泛IT社区...
本帖最后由 mzb2012 于 2025-08-28 21:58 编辑
1.软件准备485串口调试助手,它集成485调试功能,自带CRC校验,非常易于使用。
2.硬件连接
通过USB转485接入PC
3.测试步骤
发送字符串,一共两条指令
第一条是闭合继电器
第二...
GIF Animated 扩展:可点击透明背景动画GIF播放器 · App Inventor 2 中文网
...建 Apps 首页 教育 中文教育版 各版本对比 App上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 ...
How to highlight text using javascript
...spans and one span is has data like Diploma MSBTE and second span has data 2012 . Now If string which I want to highlight is Diploma MSBTE 2012 , this whole string then I checked this does not work, If everything which is going to matched is present in one span then it works, but if the text conten...
What is a lambda expression in C++11?
...formation can be found in Working draft for Programming Language C++ #337, 2012-01-16, 5.1.2. Lambda Expressions, p.88
In C++14 the extra feature which has named as "init capture" have been added. It allow to perform arbitarily declaration of closure data members:
auto toFloat = [](int value) { ret...
Multiple INSERT statements vs. single INSERT with multiple VALUES
...
Addition: SQL Server 2012 shows some improved performance in this area but doesn't seem to tackle the specific issues noted below. This
should apparently be fixed in the next major version after
SQL Server 2012!
Your plan shows the single i...
Update multiple columns in SQL
...ning may be required. I am currently engaged in so doing and in SQL Server 2012 you can now update more than 1 column per @John Woo answer below.
– Hilary
Aug 24 '16 at 10:59
...
从异构软件开发者的角度看异构计算 - 操作系统(内核) - 清泛网 - 专注C/C++...
...但是CPU的线程不能和GPU的线程共享同一块数据,在HPCChina2012上,AMD表示不久的将来他们会完成CPU线程与GPU线程共享数据,作为开发者我们也期望那一天再点到来;另一种就是CPU和GPU完全保有独立的存储单元,他们之间使用PCIE通...
getMinutes() 0-9 - How to display two digit numbers?
...
var date = new Date("2012-01-18T16:03");
console.log( (date.getMinutes()<10?'0':'') + date.getMinutes() );
share
|
improve this answer
...
How do you convert a byte array to a hexadecimal string, and vice versa?
...ompleteness (requires .NET 4.0). On par with string.Join version.
Update (2012-02-05)
Test repo includes more variants such as StringBuilder.Append(b.ToString("X2")). None upset the results any. foreach is faster than {IEnumerable}.Aggregate, for instance, but BitConverter still wins.
Update (201...
