P-HB-DOT-12010000 DOT120 | ABB Digital Output Module

Bailey Digital Output ModuleThe Harmony Input/Output (I/O) System utilizes a variety of input and output blocks to interface process signals to the Symphony ™ Enterprise Management and Control System. Digital input/output (DIO) blocks have input channels to read the states of switches, relay contacts, solenoids, etc. and output channels used in AC/DC switching applications. Digital output (DOT)blocks provide output channels for AC/DC switching applications. The digital outputs can be used to drive annunciators such as buzzers and lamps and to drive two-state final control elements such as actuators, relays, and solenoids. Digital switching of current loads up to ten amperes can be achieved by using auxiliary relay assemblies (RLY) with DIO blocks. These digital blocks along with other types of blocks for analog and control I/O interface and remote I/O communication combine to create a complete I/O system (Fig. 1). Refer to the Harmony Input/Output System overview for a complete system description.