Further information for Advantech ADAM-5510M-A2E -
4-Slot PC-based controller with RS-485
Supports Modbus/RTU master and slave function libraries
Windows-based utility
Control flexibility with C programming
Complete I/O module
set Built-in 1.5MB flash and 640KB -SRAM memory
Built-in real-time clock and watchdog timer
ROM-DOS operating system
4 serial communication ports
4 or 8 I/O slot expansions