1. FX series programmer
The programmer is an important peripheral device of the PLC, which is used to write the user program to the PLC user program memory. On the one hand, it can be programmed by the PLC, and on the other hand, it can monitor the working status of the PLC. With the development of PLC skills and the diversification of programming languages, the functions of programmers are constantly increasing.
(1) Simple programmer There are also many simple programmers for FX PLC, and the commonly used ones are FX-10P-E and FX-20P-E handheld simple programmers. They have the characteristics of small size, light weight, cheap price, and strong function. There are two methods: online programming and offline programming. The display adopts an LCD display screen, which displays 2 lines and 4 lines of characters respectively, and is equipped with a ROM writer interface and a memory card box interface. The programmer can read, write, pierce and delete instructions by means of the instruction list, and enter and modify the user program. It is possible to monitor the ON/OFF status of the bit programming element and the data in the word programming element. Such as the current and set values of counters and timers, the values of internal data registers, and other information inside the PLC. See Chapter 8 for details on how to use the programmer.
(2) PC + programming development software FX series also has some programming development software, such as GX developer. It can be used to generate software packages covering all Mitsubishi PLC equipment, and can be used to generate programs for the FX, A, and other series of PLCs. It runs on the Windows operating platform, which is easy to operate and maintain, and can be programmed with ladder diagrams, sentence lists, etc., and has strong program compatibility. The FX-PCS/WIN-E-C programming package is also a software package specifically designed for the development of FX series PLC programs. Ladder diagrams, instruction lists, and sequential utility diagrams can be used to write and modify programs, and various programming methods can be interchanged. It is applied to the Windows operating system, which can improve the efficiency of debugging and maintenance operations, and has strong compatibility.
2. Other external devices
In a PLC control system, the human-machine interface is also very important. There are also some auxiliary equipment, such as: printers, EPROM writers, external memory modules, etc.
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