Documentos de Protocolo de Lectores
Publicado 2026-09-08
中Documentos de protocolo para lectores y escáneres: protocolo de interfaz de red del MC51, protocolos de comunicación del escáner QR (v3.3 / v2.10 / v2.8), protocolo RS485 multidrop y especificación de interfaz de dispositivos de red: elija la versión que corresponda a su equipo e integración.
This page collects all communication protocol documents for Vguang reader / scanner products - download the version that fits your device model and integration approach.
MC51 Network Interface Protocol v1.5
For the MC51 scanner (WIFI / Ethernet / 4G): as a client it reports decode results (vgdecoderesult) to a server via HTTP/HTTPS POST or TCP/IP and receives the reply (code).
QR Scanner Communication Protocols (serial)
Cover control commands, result reporting, whitelist and NFC operations over Ethernet TCP / WIFI TCP / 485 / 232 / TTL. v3.3 is the latest (adds heartbeat, whitelist operations and source-distinguished reporting); v2.10 adds the scan on/off command on top of v2.8 - pick per legacy project needs.
Vguang RS485 Multi-Drop Protocol v0.6
Bus protocol for multiple readers (device address 1-255) on a single RS485 bus: SN / ID setup, data acquisition and control, system parameters (TLV), M1 card read/write, CPU card COS commands and Bluetooth pass-through.
Vguang Network Device Interface Specification v1.2
Base interface spec for a QR scanner (WIFI / Ethernet) acting as a client that reports data to a server and processes the reply (code), via HTTP POST or TCP/IP.
Selection notes
Use the latest version of each protocol for new projects; refer to the PDF for exact command formats and checksums.