VMIVME-7750-746000 GE

The VMIVME-7750 is a fully functional Pentium III compatible computer with a single slot, passive cooling, Eurocard form factor, advanced technology from the Intel 815E chipset, and a front-end bus speed of 133 MHz. The VMIVME-7750 conforms to the VME specification Rev. C.1 and has a transparent PCI-to-VME bridge, allowing the board to act as a system controller or peripheral CPU in a multi CPU system.

The programmer is an important peripheral device of PLC, which is used to write user programs into the PLC user program memory. On the one hand, it can program the PLC, and on the other hand, it can monitor the operation status of the PLC. With the development of PLC skills and the diversification of programming languages, the functions of programmers are also increasing.

Simple Programmer There are also many simple programmers for FX-type PLCs, the most commonly used being FX-10P-E and FX-20P-E handheld simple programmers. They have the characteristics of small size, light weight, cheap price, and strong functions. There are two methods of online programming and offline programming. The LCD display screen is selected for display, with 2 and 4 lines of characters displayed separately. It is equipped with a ROM writer interface and a memory card box interface. Programmers can read, write, insert, and delete instructions in the form of instruction lists for user program input and modification. Monitors the ON/OFF status of bit programming elements and data in word programming elements. Such as the current and set values of counters and timers, the values of internal data registers, and other information within the PLC.

In a PLC control system,the man-machine interface is also very important.There are also some auxiliary devices,such as printers,EPROM writer external memory modules,and so on.

The FX series PLC has 20 or 27 basic logic instructions,2 step instructions,and more than 100 functional instructions(different from different series).This section takes FX2N as an example to introduce its basic logic instructions,step instructions,and their use.

FX2N has a total of 27 basic logic instructions,including 20 basic logic instructions from some sub series of PLCs.

Fetch and output instructions(LD/LDI/LDP/LDF/OUT)