HW group IP Relay ER02b: Web relay + full serial ...

Ethernet relay, DIN rail, Web interface. Features 2x DI (dry contact input), full RS-232/485 serial port, and 2x DO (relay output, 230V/16A). Controlled over the web or Modbus/TCP. Two IP relays connected back-to-back can extend (“tunnel”) the serial port and I/O over a LAN.

Relay outputs can directly switch 230V/16A AC mains, dry contact inputs can be used e.g. for buttons. The device features a full RS-232/485 serial port for connecting e.g. a RFID or barcode reader. IP Relay is fully certified to control 110/230V and fits on a DIN rail.

Ethernet IO can be controlled over the Web, Modbus/TCP or Telnet NVT.

When the IP Relay is connected to a PC over the LAN, it can work as a serial converter that connects its RS-232 over Ethernet to a Virtual Serial Port (VSP). HW group offers HW VSP – a free virtual serial port application that supports up to 100 remote serial ports (support includes Windows 7 and x64 systems). Full RS-232 serial port controls all 9 signals.

Typical applications include remote power control, opening a remote gate over a LAN (relay output) and connecting a RFID card reader (RS-232).

• 1x full RS-232 or RS-485 serial port (terminal server, virtual port)
• 2x digital input (dry contacts)
• 2x digital output (230V/16A relay output)

Full RS-232 serial port

• IP Relay HWg-ER02b supports full RS-232 serial port in hardware
• The HW VSP application (Virtual Serial Port) supports full serial ports
• RFC2217 can be used for third-party SW implementations
• IP Relay HWg-ER02b also supports 9-bit data transfer over the serial port
• IP Relay HWg-ER02b can be used as an Ethernet com port (remote serial port)

Applications

• Link two buttons/switches to a SW application.
• Connect your RS-232 devices to your LAN – barcode / RFID scanners, serial printers, displays.
• The remote relay output can, for example, open a door, turn on a horn, or disconnect power. It can be used also as web relay.
• I/O can be controlled over Modbus/TCP from any SCADA system, independently of the serial line.
• Remote power switch (power control) can switch 230/110V AC directly.

Box-2-Box mode – 1:1 (two units connected back-to-back over a LAN)

• Extension of RS-232 or RS-485 over the network
• DI at one device controls DO at the other device, 1:1 (peer-to-peer)

Usage examples

• Connecting a RFID reader over a LAN + remote reset of associated equipment
• Connecting a barcode reader over the Ethernet + controlling DI and DO in an application
• Remote UPS or diesel generator monitoring with RS-232 monitoring + remote start / test over the I/O
• Vending machines
• Security alarms
• Access control systems
• Barcode scanners in combination with LAN relay (remote I/O)

Specifications

• Ethernet: 100 Mbit/s
• IP protocol: ARP, UDP/IP, TCP/IP (HTTP, Telnet + RFC2217, Modbus/TCP)
• Digital inputs: 2 digital inputs (dry contacts)
• Digital outputs: 2 NO/NC relay outputs (230V/16A)
• RS-232: Cannon DB9M (RxD, TxD, CTS, RTS, DSR, DTR, RI, CD, GND)
• RS-485: 2-pin terminal block
• Power: 12–30V/0.25 A
• Dimensions: 145 x 90 x 40 mm
• Operating conditions: -5 °C to +75 °C = +23 °F to +167 °F

Ordering Informaton and Accessoires

IP Relay HWg-ER02b SET	Quick start set for the IP Relay ER02b. Contains a DIN unit, a power adapter and a DVD with software.
IP Relay HWg-ER02b	DIN compatible IP Relay without the power adapter or other accessories. 2x digital input, 2x digital relay output (230V/16A AC) and a full serial port (RS-232/485) over the Ethernet.
PortBox 2 SET	Product quick start set RS-232/485 to the Ethernet. Contains a CD and a power adapte
IP WatchDog HWg-WR02a SE	Quick start set of an industrial watchdog (supports RS-232) Contains a power adapter and a C
I/O controller 2 SE	Product quick start set 8x DI, 8xDO + RS-232/485 to the Ethernet, CD, power adapter, test board