Acromag has extended its BusWorks® line of high-density Ethernet I/O modules for distributed I/O with a new Model 989EN isolated discrete I/O that also performs counter/timer functions. These space-saving inch-wide modules provide an isolated Ethernet Modbus TCI/IP interface for any input/output mix of up to 16 discrete signals. Inputs sense the status of dry contacts, switches, power supplies, or DC logic. Industrial-grade units have eight 32-bit pulse counters with timers, alarms, and non-volatile memory for metering, totalizing, and low-frequency periodic measurement functions. Outputs control solid-state switching of lamps, horns, and other devices.