BUHNER&SCHAIBLE controller, German BUHNER&SCHAIBLE model, BUHNER&SCHAIBLE price

The BUHNER&SCHAIBLE controller is the core of the access control system, the system 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, the access controller is a machine that integrates the access control board and card reader; higher-end models also include a keyboard and display. It can be used as a complete access control system by simply connecting the power supply. For a single door with card entry and button exit, the controller can connect to only one card reader per door, known as a unidirectional controller. For a single door with card entry and card exit (an exit button can also be connected), each controller can connect to two card readers per door: one entry card reader and one exit card reader, known as a bidirectional controller.

BUHNER&SCHAIBLE Controller Introduction

The controller uses microelectronics technology to perform various control functions. Under the action of input signals at the site, it controls the execution mechanisms at the site to operate according to certain rules, following pre-input programs. Based on user usage methods and characteristics, programmable controllers can be divided into two completely different markets: project-based markets and OEM markets. In the main application projects for programmable controllers, they are mainly used in industries such as metallurgy, automotive, municipal, and electric power; in the OEM market, programmable controllers are mainly used in traditional industries such as textile machinery, packaging, and machine tools. The most basic and widespread application is sequential logic control, used to replace relay control systems to achieve logic control and sequential control. It can be used for single-machine control, multi-machine control, and automated production line control. The PLC controls mechanical moving parts to perform corresponding operations based on operation buttons, limit switches, and other command signals provided at the site.

BUHNER&SCHAIBLE Controller Functions

1) Motion Control: In the machining industry, programmable controllers are integrated with Computer Numerical Control (CNC) to complete motion control for machine tools. Many PLC manufacturers have provided single-axis or multi-axis position control modules for driving stepper motors or servo motors. In most cases, the PLC sends data describing the target position 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. It has been used in centerless grinding, stamping, complex part segmented punching, roll forming, and grinding applications. 2) Timing Control: The PLC provides users with a certain number of timers and sets timer instructions. For example, OMRON's CPM1A, each timer can achieve timing control of 0·1~999·9s or 0·01~99·9s. The SIEMENS S7—200 series provides timers with time base units of 0·1s/0`01s and 0·00s, achieving timing from 0·001s to 3276·7s. Timing duration can be extended in certain ways. High timing precision, convenient and flexible timing settings. The PLC also provides high-precision clock pulses for accurate real-time control.

BUHNER&SCHAIBLE Controller Faults

The three conditions for microcontroller operation are power supply, clock crystal oscillator, and reset. When the microcontroller does not work properly, we must first check these three conditions. Use a voltmeter or multimeter to detect its power and ground pins to check if the voltage between the two pins is around 5V; for the clock crystal oscillator, it is best to use an oscilloscope to check if it is working properly by seeing if a sine wave pulse of the corresponding frequency can be detected; reset detection is relatively simple. The microcontroller's reset level is generally a high-level reset. When the microcontroller is powered on, a high level of around 5V usually appears on the reset pin. Additionally, when the reset button is pressed, a high level also appears on the reset pin, which can be detected using a standard voltmeter or multimeter.

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