Gemue controller, German Gemue model, Gemue price

The Gemue controller is the core of the access control system, the brain that manages entry and exit channels. It evolved from traditional door locks. The door controller is an access control product that integrates card reading and control, available in standalone and networked versions. Simply put, an access controller is a device that combines an access control board and a card reader; higher-end models also include a keyboard and display. It can be used as a complete access control system by simply connecting to power. If a door uses card entry and button exit, the controller can connect to only one card reader per door, called a unidirectional controller. If a door uses card entry and card exit (an exit button can also be connected), each controller can connect to two card readers per door: one for entry and one for exit, called a bidirectional controller.

Gemue controller classification

1) Non-networked door controller: One unit manages one door. It cannot be controlled via computer software, nor can records be viewed; control is performed directly through the controller. Features include low price and simple installation and maintenance. However, records cannot be viewed. It is unsuitable for locations with more than 50 people or high staff turnover (frequent hiring and resignations), and unsuitable for projects with more than 5 doors. 2) Networked door controller: An access control type that communicates with a computer, allowing direct management via software, including card and event control. Benefits include convenient management, centralized control, record viewing, and data analysis for other purposes. Features include higher price and increased installation and maintenance difficulty, but simple training and value-added services such as attendance tracking. Suitable for projects with many people, high mobility, and many doors. 3) TCP/IP network door controller: Also known as Ethernet networked access control, this is a networkable access control system that connects computers and controllers via network cables. In addition to all the advantages of networked access control, it offers faster speed, simpler installation, greater networking capacity, and cross-regional or cross-city networking. However, equipment costs are high, and computer networking knowledge is required. Suitable for large projects, high user counts, speed requirements, and cross-regional installations.

Gemue controller functions

1) Motion control: In the machining industry, programmable controllers are integrated with Computer Numerical Control (CNC) to perform motion control of machine tools. Many PLC manufacturers provide single-axis or multi-axis position control modules for driving stepper or servo motors. In most cases, the PLC sends target position data to the module, which moves one or several axes to the target position. As each axis moves, the position control module maintains appropriate speed and acceleration to ensure smooth motion. Applications include centerless grinding, stamping, segmented punching of complex parts, roll grinding, and grinding applications. 2) Timing control: PLC provides users with a certain number of timers and timer instructions. For example, OMRON's CPM1A allows each timer to achieve timing control of 0·1~999·9s or 0·01~99·9s. SIEMENS's S7—200 series provides timers with time bases of 0·1s/0`01s and 0·00s, achieving timing from 0·001s to 3276·7s. Timer duration can be extended in specific ways. High timing precision and convenient, flexible setting. PLC also provides high-precision clock pulses for accurate real-time control.

Gemue controller faults

The three conditions for microcontroller operation are power supply, clock crystal oscillator, and reset. When a microcontroller fails to operate normally, first check these three conditions. Use a voltmeter or multimeter to check the power and ground pins, verifying whether the voltage between the two pins is around 5V. To check if the clock crystal oscillator is working properly, use an oscilloscope to detect the corresponding frequency sine wave pulse. Reset detection is simpler: microcontrollers typically use high-level reset. Upon power-up, the reset pin usually shows a high level of around 5V. Pressing the reset button also produces a high level on the reset pin, which can be detected with a standard voltmeter or multimeter.

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