Advantech Unveils New Modbus Gateways
with Integrated Ethernet Cascading

Advantech, a leading industrial communication solutions provider, has announced two new Modbus Gateways with built-in Ethernet switches, the EKI-1221D and EKI-1222D. In addition to providing transparent connectivity between Modbus (ASCII, RTU) serial devices and Ethernet based Modbus/TCP equipment, built-in Ethernet switches allow these devices to be connected via cascading/daisy-chain and support auto-bypass functionality. These new Modbus Gateways are able to fulfill flexible installation and web browser configuration requirements for remote monitoring applications.

EKI-1221D and 1222D have built-in Ethernet switches for cascading/daisy-chain connectivity that offers flexible cabling. Cascading connections support Ethernet auto-bypass to prevent accidental power failure in the event one of the Modbus Gateway’s unexpectedly shuts down. These devices also come with Windows utilities and web-based configuration, providing easier ways to set up. One port can be used to connect to the network, while the other can be used to connect to an Ethernet device or another EKI-1221D/1222D. For instance, one Ethernet port connects to an HMI, while another Ethernet port can connect to a PAC, allowing these devices to easily communicate. This provides a simple and cost-effective way to add remote management and data accessibility to thousand of devices that can’t connect to a network.

Advantech's EKI-1221D/1222D Modbus Data Gateways provide 921k baud speeds and are designed to fulfill any master/slave relationship. Moreover, they support 16 TCP masters, 16 TCP slaves, and each serial port supports up to 31 RTU/ASCII slave devices.

EKI-1221D/1222D also have built-in dual power inputs (12~48 VDC) with 1 power fail relay output to detect power operation status and ensure reliable operation. Like other members of the EKI Industrial Ethernet family, they are built with thin DIN-rail mount form factors, IP30 metal housings, and Class I Division 2 certification for hazardous environment requirement.

These Modbus Gateways are now available to the market. Contact Advantech for more information.