Industrial automation manufacturer Opto 22 has released the SNAP-AIMA-iH and SNAP-AOA-23-iH two-channel analog input and output modules, each with HART communications. Both SNAP I/O modules use the HART communications protocol to extract status, diagnostics, and other information from smart devices such as field-mounted process transmitters and analyzers. This information can be used by the automation system and/or the asset management system to increase uptime, improve productivity and enhance safety.