elevator main board OTIS DAA26800AY5 DAA26800AY2 elevator pcd parts

The Otis DAA26800AY5 board is the core component of the elevator control system. The following is a detailed description of its role:

1.‌Function‌:

Responsible for receiving and processing input signals from sensors, buttons, door switches, etc.Control the operation of the elevator according to the preset logic, including position, speed, load, etc.Monitor the elevator status and take protective measures when necessary.

2.‌Application‌:

This board may be suitable for various types of elevators, such as passenger elevators, etc., please refer to official information for details.

‌Otis DAA26800AY5 board communication interface includes RS485‌. :

1.‌Communication mode‌:

The Otis DAA26800AY5 board transmits elevator status information such as floor, direction and fault alarm through the RS485 half-duplex interface, but cannot receive control signals‌.

2.‌Function and role‌:

This board is used to sample the floor, direction and status signals of Otis elevators and transmit them in serial communication. It samples the input signal every 100mS, and saves it in a certain format, waiting for the host computer to query.

In summary, the communication interface of the Otis DAA26800AY5 board mainly includes RS485, which is used to realize the transmission and monitoring of elevator status information.