Modbus TCP & RTU
Modbus TCP and Modbus RTU, native, no gateways
Modbus is the lingua franca of industrial communication. ScadaHud ships first-party drivers for Modbus TCP, Modbus RTU and Modbus ASCII so you can pull live values from PLCs, energy meters, VFDs, RTUs and gateways without a third-party OPC server in the middle.
¿Qué es Modbus?
Modbus is a serial and TCP/IP application protocol introduced by Modicon in 1979 and now the most widely deployed industrial protocol on the planet. The data model is simple: read or write coils, discrete inputs, input registers and holding registers, addressed by function code and slave ID. Modbus TCP carries the same PDU over a TCP socket on port 502; Modbus RTU runs over RS-485 / RS-232 with CRC-16. Most modern PLCs, energy meters, UPSes, and BMS controllers expose a Modbus interface either natively or via a gateway.
Lo que soporta el driver de ScadaHud
- Modbus TCP, Modbus RTU over TCP and Modbus Serial (RTU and ASCII over RS-232 / RS-485)
- Function codes 1, 2, 3, 4 (read coils, discrete inputs, input registers, holding registers) and 5, 6, 15, 16 (writes)
- Auto-block optimization: contiguous tags are read in a single request to minimize wire traffic
- Per-slave-ID isolation on shared TCP connections, no transaction-ID race conditions
- Forced block reads for devices that require fixed register ranges (Socomec UPS, some Schneider gear)
- Per-tag byte-swap and word-swap configuration (AB, BA, ABCD, CDAB, BADC, DCBA)
- Int16, UInt16, Int32, UInt32, Int64, UInt64, Float32, Float64, Boolean and bit-packed types
- Configurable polling, deadband, retry and reconnect
- Human-readable Modbus exception messages (Illegal Function, Illegal Data Address, Slave Device Failure, etc.)
Casos de uso comunes
- Energy and power monitoring with Schneider PowerLogic, ABB M4M, Carlo Gavazzi, Janitza, Siemens SENTRON
- PLC tag acquisition from Modicon, Allen-Bradley (via gateway), Wago, Beckhoff, Phoenix Contact
- VFD monitoring (ABB, Danfoss, Schneider Altivar)
- Substation RTU and IED data on Modbus over serial or TCP
- BMS subsystems exposed via Modbus gateway
Schneider, Siemens, ABB, Modicon, Wago, Beckhoff, Phoenix Contact, Carlo Gavazzi, Janitza, Socomec, Eaton, Delta, Mitsubishi, Allen-Bradley (via gateway), Acrel, AE Solar, SMA, Huawei FusionSolar.
Reserve una demo en vivo.
Reserve una demo en vivo de 30 minutos con uno de nuestros ingenieros de soluciones. Conectaremos un PLC de muestra y recorreremos juntos tags, alarmas, mímicos, el gemelo digital y consultas al historiador.