The number of input/output (I/O) points is the sum of the input signal and output signal that Mitsubishi plc can accept, and is an important indicator to measure the performance of Mitsubishi plc. The more I/O points, the more input devices and output devices that can be connected to the outside, and the larger the control scale. So it is listed as the number one factor in the six performance standards!

Criterion 1: Function and quantity of instructions

The strength and quantity of instruction functions are also important indicators to measure the performance of Mitsubishi PLC. The stronger the function and quantity of the programming instructions, the stronger the processing and control capabilities of the Mitsubishi PLC. The simpler and more convenient user programming is, and the easier it is to complete complex control tasks.

Criterion 2: Scalability

The expandable capabilities of Mitsubishi PLC include the expansion of I/O points, the expansion of storage capacity, the expansion of networking functions, and the expansion of various functional modules. When choosing Mitsubishi PLC, it is often necessary to consider the scalability of Mitsubishi PLC.

Standard 3: Special function unit

The number of types of special function units and the strength of their functions are an important indicator for measuring Mitsubishi PLC products. In recent years, various Mitsubishi PLC manufacturers attach great importance to the development of special function units. The types of special function units are increasing day by day, and the functions are getting stronger and stronger, which makes the control functions of Mitsubishi PLC increasingly expanded.

Standard 4: Storage capacity

Storage capacity refers to the capacity of user program memory. The user program memory has a large capacity and can compile complex programs. Generally speaking, the user memory capacity of a small Mitsubishi PLC is several thousand words, while the user memory capacity of a mainframe computer is tens of thousands of words.

Standard Five: Scanning Speed

Scanning speed refers to the speed at which Mitsubishi PLC executes user programs, and is an important index to measure the performance of Mitsubishi PLC. Generally, the scanning speed is measured by the time required to scan a 1K word user program, usually in ms/K words. Mitsubishi PLC user manual generally gives the time used to execute each instruction, and the scanning speed can be measured by comparing the time used by various Mitsubishi PLCs to perform the same operation.

Standard 6: Type and quantity of internal components

When compiling a Mitsubishi PLC program, a large number of internal components are needed to store information such as variables, intermediate results, holding data, timing counting, module settings, and various flags. The more types and quantities of these components, the stronger the ability of Mitsubishi PLC to store and process various information.