A, input relay xX, y, there are countless normally open and normally closed contacts for programming use.Y section only for driven load using a normally open contact.You can see that each group is 8Input/output points determined in accordance with practical needs.Host + extended mode can be used to use number followed by addendum to the … Continue reading Introduction of various components in the Mitsubishi FX PLC (take FX2-64MR as an example)

1. Enter image register (input relay) I(1) input image register worksInput relays the PLC interface to receive user input signal. PLC in the "relay" and the relay in the relay control system there are essential differences, "soft relay", which is essentially a storage unit. Each "input relay" coil is connected to the PLC inputs (such … Continue reading PLC components function and address assignment

1. direct addressingDirect addressing is used directly in the instruction memory or registers the component name (logo) and the address number, reads or writes data directly to the specified region. Bit, byte, Word, double word addressing, as shown in Figure 2-8.2. indirect addressingIndirection operand does not provide direct data, but through the address pointer is … Continue reading PLC addressing modes

Addressing modeProgrammable controller address is encoded inside the PLC elements, so that when the program execution can uniquely identify each component. PLC in a data store for each element is assigned a storage area and letters as a regional symbol and represents the type of component. Such as: digital input and write the input image … Continue reading PLC addressing mode

In our PLC in general design, we used to use outputs for relay outputs, so you can do enforcement agents contact signal needs, such as some required AC voltage 220V, some need DC voltage, is a passive touch point, etc. In the output of the PLC-contact protection, generally use the RC protection, some protection is … Continue reading An understanding of PLC output select

Programmable computer controller, referred to as PCC (programmable computer controller), as a new concept in the mid-90 in the industrial sectors, which is different from the programmable logic controller PLC (program logic controller) and IPC IPC (industry personal computer) of a new generation of programmable computer controller, Represent the development trend of industrial control technology.PCC … Continue reading Difference between PCC and PLC, and IPC