When Opto 22 took its Snap PAC programmable automation controller and I/O products family to Asia in recent years, it ran into an unanticipated requirement: the need for redundancy in control systems.

SoftPAC can run on PCs or SNAP PAC controllers because it uses Opto 22’s PAC Project software. With Ethernet fast becoming the de facto network on the plant floor and wireless no longer viewed as an ...