Systems integrator Automated Interface Solutions (AIS) used the SNAP PAC System to solve a problem for one of its large customers, a manufacturer of polypropylene film.
Part of the company’s manufacturing process used older Measurex and Foxboro systems, tied by custom software to an Allen-Bradley® ControlLogix® PLC. Parts were becoming difficult to get and the custom software was expensive to change.
AIS installed the SNAP PAC System to replace the older hardware. Opto 22 PACs communicate natively with Allen-Bradley PLCs using the EtherNet/IP protocol. AIS worked with its customer to define all of the process control data it wanted the A-B system to have access to, and then made that data available within the shared memory of the Opto 22 PACs.
In addition, the SNAP PAC System sends data via OPC to the company’s Wonderware® Intouch® HMI, which displays real-time information on scanners, indicates die bolt positions (on or off), roll lengths and averages, and other statistics. Data transfer is accomplished via OPC, and more than 6,400 I/O tags are passed through to the HMI without issue.