11 -23 features www.advantech.com/products online download all product specifications are subject to change without notice last updated : 9-mar-2005 ADAM-4500 pc-based com mu ni ca tion controller speci? cations board ? cpu 80188-40 ? flash rom 256 kb (170 kb free memory for users) ? operating system boot rom dos ? timer bios yes ? sram 256 kb (234 kb free memory for users) ? real-time clock yes ? watchdog timer yes ? com1 rs-232/485 ? com2 rs-485 ? program download tx, rx, gnd port(rs-232) ? power requirement unregulated +10 to +30 v dc ? power consumption 2.0 w ? operating temperature -10 ~ 70 c (14 ~ 158 f) ? case abs with captive mounting hardware ? plug-in screw accepts 0.5 mm to 2.5 mm terminal block 1-#12 or 2-#14 ~ #22 awg ? dimensions 60 x 120 mm (2.36" x 4.72") rs-232 interface ? signals txd, rxd, rts, cts, dtr, dsr, dcd, ri, gnd ? mode asynchronous full duplex, point to point ? transmission speed up to 115.2 kbps ? max transmission 15.2 meters (50 feet) distance rs-485 interface ? signals data+, data-, gnd ? mode half duplex, multi-drop ? transmission speed up to 115.2 kbps ? max transmission 1200 meters ( 4000 feet) distance software the ADAM-4500 module provides 170 kb rom for your downloaded application s and 234 kb ram for application operation. its built-in rom-dos is an ms-dos equivalent operating system, which provides all of the basic functions of ms-dos except bios. application programs written in high level languages such as c or c++ can run under rom-dos. application programs should be converted into 80188 compatible code before being downloaded into the ADAM-4500. the download utility is included with the ADAM-4500. ordering information ? ADAM-4500 pc-based communication controller ? powerful communication controller in a small package ? built-in boot rom dos to run pc programs ? free rom/ram memory for user's applications ? 2-wire, multi-drop rs-485 networking ? communication speed up to 115.2 k bps ? rs-232/rs-485 modes (jumper selectable) ? automatic data ? ow control in rs-485 mode ? built-in real-time clock and watchdog timer ? easy mounting on a din-rail or panel ? accepts unregulated power sources between 10 to 30 v dc ? program download cable and utility included introduction the ADAM-4500 is a fully functional stand-alone controller for industrial automation and control. it provides an ideal environment for controlling pc hardware with a minimal amount of development effort. its built-in rom-dos lets users run standard pc programs or new programs produced by pc language development tools. rom-dos is an ms-dos equivalent operating system allowing you to run all standard pc software. built-in rs-232/485 com ports the ADAM-4500 has two communication ports (com1 and com2). these provide easy communication between the controller and other devices in your applications. com1 can be con? gured for rs-232 or rs-485 communication via a jumper setting, while com 2 is dedicated as an rs-485 port. this design allows the controller to be used in a variety of applications. for example, a user can download an application into the ADAM-4500's on-board flash memory while the ADAM-4500 is connected to an rs-485 network, then let it control all the modules in the network. built-in real-time clock and watchdog timer the real-time clock in the controller ensures accurate time recording while the system operates. the watchdog timer is designed to automatically reset the cpu if the system fails.
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