Engineers, OEMs and integrators have struggled for years to balance the cost of PLCs with their I/O needs, but Turck reports its new Argee technology solves this challenge, and empowers manufacturers to add logic to compatible I/O devices without a PLC, driving down the cost per I/O point and increasing control flexibility.
The Argee environment is accessible via an HTML5-compatible web browser, which eliminates the need for complex third-party software or licensing common with PLCs. Inside Argee, users can set condition and action statements to be carried out by the I/O device. Its intuitive design includes a flowchart similar to ladder logic, which enables easy programming by users at all levels.
In short, using Argee on Turck’s multiprotocol Ethernet I/O devices allows users to develop and use an alternative control solution—field logic controllers (FLCs)—which can allow small to mid-size OEMs and manufacturers to add logic without investing in a PLC.
FLCs can be used in three ways:
• FLC stands alone and performs all logic as a standalone application without a PLC.
• FLC backs up the PLC, so if the FLC loses communication with the PLC, the FLC can take over and either shut down or maintain the process.
• FLC and PLC work together. The FLC can monitor an application and send defined variables and updates back to the PLC.
“With FLCs powered by Argee, engineers can add control capabilities and I/O points to applications without having to invest in or upgrade a PLC,” explains Randy Durick, vice president of fieldbus technology at Turck. “Because the I/O devices carry advanced ingress ratings, logic can move outside the panel and onto machines for local control and real-time performance monitoring.”