Functionality

Digital inputs	8 (24 V DC), can be used as source inputs or as sink inputs
Interrupt inputs	4 (DI0 … DI3), configurable
Fast Counter	2 (DI0 and DI1), configurable
Digital outputs	6 transistor outputs (24 V DC, 0.5 A max) or relay outputs (2 A max), (depending on processor module)
PWM outputs	2 (DO2 and DO3), configurable
LED displays	For signal statuses
Internal power supply	Via processor module
External power supply	Via UP and ZP terminal