Конвертер передачи данных wiegand26/34 в RS485 с протоколом MODBUS для контроля доступа

Product Overview

Description

 

wiegand26/34 to RS485 MODBUS protocol communication data transmission converter for access control

 

Product Description

This converter Was developed to interface access control equipment. For example, to connect keyboards and card readers with Wiegand interfaces to access controller with a RS-485 serial port. The converter has a RS-485 serial interface, through this interface the converter is connected to an Wiegand access controller (door controller).

It is a single way transfer converter which can send Wiegand card number to controller via RS485 MODBUS, this is our default option. Furthermore, we can also customize the converter to be a good double way transmit (bi-direction) communication device for access control system. It can transfer Wiegand 26bit or Wiegand 34bit data to RS485 data, also can transfer RS485 data to Wiegand Wiegand 26bit or 34bit data.

 

External connections

 

Wiegand interface

+12V      Power+ (DC9V to 12V)

D0        Wiegand D0

D1        Wiegand D1

GND      Power- (GND)

Remark:   power range from DC 9V to 12V, it can get power from access controller direct, but must connect with its GND, else, the Wiegand data maybe missing signal or confuse.

 

RS485 Interface

A        RS485+ (A) non-inverting signal for standard RS485 port

B        RS485- (B) inverting signal for standard RS485 port

GND     GND.

 

Parameters

Size: 74mm x 41mm x 29mm

Net weight: about 30g (for reference only, depend on PCB design version).

Wiegand format: Wiegand26 and wiegand34bits

Operating voltage: DC 9V-12V (can get power from access controller direct, but must connect with its GND)

Consumption current, not more than 30mA

Converter support MODBUS RTR Master/Slave work mode as a slave.

Baud rate: 9600 (n, 8, 1). /default, can be change for customized order.

Operating temperature range: +5 - +40 °

Relative humidity at +15 °: 80%

Relative humidity at +25 °: 90%

 

Communication:

The converter follows the MODBUS Protocol, support MODBUS RTR Master/Slave work mode as a slave.

Relevant command instruction please refers to below:

(here below with yellow highlight for CRC16 verification, need dynamic computing.)

Converter default address is 01. Can change by address revise code;