BACnet is a communication protocol for building automation and control networks. BACnet is designed to allow communication for applications such as heating, ventilating, and air-conditioning control, lighting control, access control, and fire detection systems and their associated equipment. The BACnet protocol defines a number of services that are used to communicate between building devices. Itl also defines a number of objects that are acted upon by the services. The objects include Analog Input, Analog Output, Analog Value, Binary Input, Binary Output, Binary Value, Multi-State Input, Multi-State Output, and Device, etc.
BACnet/IP Data Acquisition I/O Module with 4 Voltage Analog Inputs, 2 Voltage Analog Outputs, 4 BI and 4 BO. DIN-Rail mountable, configurable over a web page. Powered by 10 to 30VDC and supports operating temperature -25 to 75C (-13F to 167F).
±1 V , ±2.5 V, ±5 V, ±10 V Dry (Source
0 V ~ +5 V, ±5 V, 0 V ~ +10 V, ±10 V, Open Collector Source(PMP)