Available from RF Modules Australia is the IALink100-Modbus which is a Modbus/TCP protocol gateway for industrial devices such as PLCs, motion controllers, DDCs and robots. The IALink100-Modbus supports RS232/422/485 based serial devices via a screw terminal block and can transfer serial data at up to 115Kbit/s. The unit supports 10Base-T Ethernet via an RJ45 Ethernet connector.
The IALink100-Modbus supports Modbus master/slave mode for both Modbus ASCII and RTU devices, and can connect multiple Modbus devices to Ethernet using a RS422/485 multidrop connection.
The IALink100-Modbus is designed to accommodate the unique requirements of industrial automation applications. The IALink100-Modbus runs from +7.5-30V DC supplies - which includes the commonplace +24V DC for industrial automation applications. Also, the IALink100-Modbus has a DIN-rail mounting adapter on the back of the case, which is a most common installation method for industrial automation applications.
Using Ethernet as a primary communications interface, automation industry and industrial communications are becoming more and more mature. The IALink100-Modbus has an IP-address-based filtering method to control the access to the telnet from the remote hosts to prevent unauthorised access.
The IALink100-Modbus has six LED indicator lamps for status display. Configuration is via telnet or serial console port, with windows-based management software for configuration and administration.