GE MMII-PD-1-2-120 is a product produced by General Electric (GE). The following is a detailed introduction to it:

1、 Basic Information

Brand: GE

Specifications: MMII-PD-1-2-120

Origin: United States

2、 Technical features

Input interface:

Receive and collect two types of input signals, one is the switch input signal provided by buttons, conversion switches, travel switches, relay contacts, etc; The other type is the continuously changing analog input signal provided by potentiometers, tachometers, and various converters.

Output interface:

The output interface circuit outputs control signals to various actuators of the controlled object, including contactors, solenoid valves, regulating valves (analog), speed control devices (analog), indicator lights, digital display devices, and alarm devices.

The output interface circuit is generally composed of a microcomputer output interface circuit and a power amplification circuit. Similar to the input interface circuit, the internal circuit and the output interface circuit are isolated by an anti-interference electrical coupler.

The microcomputer output interface circuit generally consists of output data registers, gating circuits, and interrupt request logic circuits integrated on the chip. The CPU sends the output signal to the output data register through the data bus.

The power amplification circuit is designed to adapt to industrial control requirements by amplifying the output signal of a microcomputer.

I/O expansion:

If the I/O quantity of the host unit is insufficient, it can be expanded by connecting the I/O expansion interface cable to the I/O expansion unit (without CPU).

Communication ability:

PLC (Programmable Logic Controller) is often configured with interfaces to connect various peripheral devices, and can achieve functions such as serial communication and EPROM writing through cables.

3、 Application and maintenance

Application:

PLC uses storage logic instead of wiring logic, greatly reducing the external wiring of control equipment, greatly shortening the design and construction cycle of control systems, and making daily maintenance easier.

PLC has complete data processing capabilities and can be used in various digital control fields, and has penetrated into various industrial controls such as position control, temperature control, CNC, etc.

maintain:

The power line and I/O line should be wired separately, and the isolation transformer should be connected to the PLC and I/O using twisted pair cables.

Separate the I/O lines and high-power lines of the PLC for routing. If they are in the same cable tray, separate and bundle the AC and DC lines. If conditions permit, it is best to route them separately to reduce interference.

4、 Other information

GE MMII-PD-1-2-120 may be used as part of a PLC system to achieve complex industrial automation control tasks. In addition, the product may also have advantages such as easy programming, flexible configuration, and reliable operation, which can meet the needs of various industrial automation applications.