职位描述:
上海某知名500强电气集团中国研发中心招聘一名软件开发工程师,主要负责HMI产品与第三方产品,比如PLC连接时的通讯协议开发,具体要求如下:
REGULAR RESPONSIBILITIES
1.The third-part products(PLC/Controller/VSD etc) protocol development for HMI
(such as Modbus/Profibus/Ethernet etc.)
(1). Investigating and creating the design spec.
(2). Coding to implement the protocol.
(3). Debug.
(4). Creating the user manual.
2. The third-part products(PLC/Controller/VSD etc) protocol evaluation for HMI
(1). Creating the test plan.
(2). Write the test case.
(3). Do the White/Gray/Black Box testing
(4). Analyze the defects, and set the influence areas.
REQUIRED EDUCATIONAL BACKGROUND
1.Bachelor or master degree on Computer software / automation control related.
2.Be familiar with C++ programming, and basic experience in C#;
3.Having the experience in protocol development (or know the spec. of an arbitrary protocol)
4. Having the experience in using PLC / Controller / VSD of arbitrary makers
5.Good English communication skills both oral and written.
7.Good teamwork and interpersonal skills;
有意向请尽快与Teenie联系:
Phone: 86-21-53068625
Email: teenie.yao@seekerhr.com
MSN: teenieyao@hotmail.com
QQ:493313463
有朋自远方来,不亦乐乎~~~~
PLUS:
当HMI用于PLC控制系统时,HMI与PLC之间通过串口以Direct Link(直接连接)方式进行通讯。在该方式下,HMI根据要求直接读入PLC的数据或把数据写入PLC相应的地址中。由于内装通讯协议,因此无须编制通讯程序,只要指定所用PLC类型即通讯协议,运行时便可实现通讯。因此大大减少了PLC用户程序的负担。在系统设计时,直接指定控制部件与其对应PLC的输入输出(I/O)、寄存器(R)、中间寄存器(M)的地址,运行时HMI就能自动和PLC进行数据交换。直接读取或改写PLC相应地址的内容,并据此改变画面上显示内容。同时通过对HMI的触摸操作,可向PLC相应的地址输入数据。 |