Contemporary Control Systems BAScontrol20 User Manual - Manual (Page 5)

TD100700-0MB
5
1 Introduction
The BAScontrol20 (BASC20) is a 20-
point Powered by Sedona Framework™ field
controller with a direct connection to an Ethernet network. Ideally suited for
structured wiring systems, the BASC20 is BACnet/IP compliant with a B-ASC device
profile. Having a resident Sedona Virtual Machine (SVM), the unit is freely
programmable using tools such as Niagara Workbench or a similar tool. For remote
Ethernet I/O applications, the unit can be configured via web pages.
The BASC20 provides a convenient mix of universal inputs, binary inputs and
outputs as well as analog outputs. Models exist for both triac and relay binary
outputs. The unit is ideal for unitary control or for expanding I/O points in the field via
an Ethernet connection.
The BASC20 utilizes a powerful 32-bit ARM7 processor with 512 kB of flash memory
plus a 16 Mbit serial flash file system for storing configuration data and an
application program. By operating at the BACnet/IP level, the BASC20 can share
the same Ethernet network with supervisory controllers and operator workstations.
The unit can be configured for a fixed IP address or can operate as a DHCP client
receiving its IP address from a DHCP server. A real-time clock with a super-cap
backup allows for creating local schedules.
A 10/100 Mbps Ethernet port supports protocols such as BACnet/IP, Sedona Sox,
HTTP and FTP. Configuration of universal inputs and virtual points can be
accomplished using web pages. Type II and type III thermistors curves are resident in
the unit. Current inputs can be measured using external resistors. Contact closures
require a voltage-free source. Binary inputs and outputs as well as analog outputs
require no configuration. The unit is powered from either a 24VAC/VDC source.
1.1 Features and Benefits
Versatile Control Device — field controller or remote Ethernet I/O

BACnet/IP compliant

B-ASC device profile

Configurable by Workbench or provided program

Direct connection to an Ethernet network

Powered by Sedona Framework™
Flexible Input/Output — 20-points of I/O

Eight configurable universal inputs:
Thermistor, analog voltage, contact closure, pulse inputs (4 max)

Four contact closure inputs

Four analog voltage outputs

Four relay or triac output (model specific)