Spectrum Controls 2080sc-BAC - Manual (Page 9)

User’s Manual Pub. 0300274-01 Rev. A.0
Chapter 1
Module Overview
Section 1.1 General Description
The 2080sc-BAC Communication Module is a two-channel communication,
plug-in module for use with Rockwell Automation Micro800™ systems.
The plug-in module supports two channels of data communications: one channel
is configured for RS-485, half duplex serial communications, and the other
channel is configured for 10/100M Ethernet full duplex serial communications.
After installation, the module is configured via the Ethernet port. By default, this
is the port that the module uses to communicate with external devices such as
other BACnet modules or personal computers.
The module plugs into an extension slot on the PLC. The module interfaces with
the controller via Asynchronous Parallel Interface (API), and communicates with
other BACnet modules using the BACnet protocol. The module stores the data
internally. During module setup, you map Micro800 PLC tags to BACnet tags so
that the Micro800 system is able to receive, and respond to, BACnet messages.
The BACnet protocol is configured to run on the Ethernet port by default.
The data exchanged between a module and controller, or other BACnet modules,
includes module configuration, configuration changes, interrupts from the
module to the controller, module status queries from the controller, controller
reset commands to the module, and other associated communications.
The BACNet configuration software resides on the BACNet module. You use a