User Manual

Introduction
1-
2 ADAM 4000 Series User’s Manual
1.1 Overview
The ADAM Series is a set o f in telligent sen sor-to-computer
interface m odules containi ng built-in microprocessor. They are
remotely controlled through a simple set of commands issued in ASCII
format and t ransmitted i n RS-485 protocol. T hey provide si gnal
conditioning, isolation, r anging, A/ D a nd D/A co nversion, data
comparison, a nd digital c ommunication functions. S ome m odules
provide digital I/O lines for controlling relays and TTL devices.
Software Configuration and Calibration
By merely issu ing a co mmand fro m th e ho st co mputer, you can
change an analog input module to accept several ranges of voltage input,
thermocouple in put o r RTD in put. All of th e m odule’s co nfiguration
parameters i ncluding I/ O ad dress, com munication s peed, HI a nd LO
alarm, calib ration p arameters settin gs m ay b e set remotely. Re mote
configuration can be do ne by usi ng either the p rovided menu-based
software or the command set’s configuration and calibration commands.
By sto ring con figuration and calibratio n parameters in a no nvolatile
EEPROM, modules are able to retain these parameters in case of power
failure.
Watchdog Timer
A watchdog timer sup ervisory function will au tomatically reset the
ADAM m odules in th e ev ent of system failu re. Main tenance is thu s
simplified.
Power Requirements
Although t he m odules ar e de signed for st andard industrial
unregulated 2 4 V
DC
power supply, they a ccept any power unit that
supplies power within the range of +10 to +3 0 V
DC
. The power supply
ripple m ust be l imited t o 5 V peak-to-peak, a nd t he i mmediate ri pple
voltage should be maintained between +10 and +30 V
DC
.
Connectivity and Programming
ADAM m odules can c onnect to and communicate with al l com puters
and term inals. They use RS-485 tra nsmission standa rds, a nd
communicate with ASCII format co mmands. T he com mand set for
every module type consists of approximately ten different commands.