OPC UA I/O System BL211

BL211 · OPC UA Distributed I/O 📥 Acquire 🔄 Convert ☁️ Upload ⚡ OPC UA · IT/OT Integration 🛡️ ESD L3 / Surge L3 🔗 OPC UA Server 🔌 Modbus RTU/TCP Gateway 📦 Tool‑free wiring 🌐 Dual‑port cascade 🔐 Encrypted transmission 📥 Full‑scale acquisition Covers all industrial signals, flexible expansion DI / DO / AI / AO RTD / Thermocouple / NTC High‑speed pulse / PWM Up to 32 N‑series modules 🔄 Protocol conversion

Key specifications

Power / consumption	24V DC · 76mA
CPU / Memory	300MHz · 64MB RAM · 128MB Flash
Ethernet	2× RJ45 (switch cascade) · 10/100M · dual‑port
RS485	Isolated · Modbus RTU master/slave
Protocols	OPC UA Server · Modbus TCP · HTTP · DHCP · DNS
I/O expansion	Up to 32 N‑series modules (DI/DO/AI/AO/RTD/TC/PWM)
Immunity level	ESD L3 (±6kV/±8kV) · Surge L3 (2kV/4kV)
Operating temperature	-20 ~ 55 °C (cold start -40°C)
Dimensions (W×D×H)	26 × 74.9 × 104.5 mm · ultra‑slim
Mounting / protection	DIN‑rail 35mm · IP20
Terminal blocks	Detachable · tool‑free wiring · AWG 22–14

Supply information

Manufacturer	BLIIoT — Beilai Technology Co., Ltd.
Model code	BL211
Full name	OPC UA I/O System BL211
Category	Distributed I/O systems
Supplied in Korea by	ACUSYS Co., Ltd. · Official BLIIoT distributor in Korea