EKI-1221 1-port Modbus Gateway

The EKI-1200 series Modbus gateways are bi-directional gateways for integrating new and existing Modbus/RTU and Modbus/ASCII serial devices to newer TCP/IP networked-based devices. The EKI-1221/1222/1224 feature two independent Ethernet ports and MAC addresses to provide a redundant networking mechanism to guarantee Ethernet networking reliability. They provide a simple and cost-effective way to bring the advantage of remote management and data accessibility to thousand of devices that can not connect to a network. The EKI-1221/1222/1224 provide a feature that can allow users to select master or slave operation mode for each serial port. They not only allow an Ethernet master to control serial slaves, but also allow serial masters to control Ethernet slaves.

Features
Specs
Datasheet

Provides 2 x 10/100 Mbps Ethernet ports for LAN redundancy
Integration of Modbus TCP and Modbus RTU/ASCII networks
Supports up to 921.6 kbps, and any baud rate setting
Supports up to 16 connections and 32 requests simultaneously
Supports 31 slaves per serial port
Easy-managing Advantech Serial Device Server Configuration Utility for Windows 2000/XP/Vista/7
Auto searching slave ID over configuration utility
Software selectable RS-232/422/485 communication
Mounts on DIN-rail, wall or panel
Built-in 15 KV ESD protection for all serial signals
Automatic RS-485 data flow control

Ethernet Communications

Compatibility: IEEE 802.3, IEEE 802.3u
Speed 10/100 Mbps
Ports: 2
Port Connector: 8-pin RJ45
Protection: Built-in 1.5 KV magnetic isolation

Serial Communications

Port Type RS-232/422/485, software selectable
No. of Ports EKI-1221: 1
Port Connector: DB9 male
Data Bits: 7, 8
Stop Bits: 1, 2
Parity: None, Odd, Even, Space, Mark
Flow Control: XON/XOFF, RTS/CTS, DTR/DSR
Baud Rate: 50 bps ~ 921.6 kbps, any baud rate setting
Serial Signals: RS-232: TxD, RxD, CTS, RTS, DTR, DSR, DCD, RI, GND RS-422: TxD+, TxD-, RxD+, RxD-, GND RS-485: Data+, Data-, GND
Protection: 15 KV ESD for all signals