Description
D20 Substation Controllers: The Ultimate in Field-Proven Reliability The D20 main chassis comes in three distinct types tailored to meet the varying size and communication requirements of different automation projects from a few hundred points to over 75,000 SCADA points. The D20 or D200 main chassis houses the central CPU(s) and communication ports which provide the data concentration,protocol conversion, and customizable local automation functionality. The D20ME II is the sixth generation main processor for the D20 platform. This 32-bit main processor module handles data collection and delivery to host computers, runs local automation algorithms and maintains I/O and device data in the system database CPU and Memory • 32-bit microprocessor architecture • 2 MB flash application memory • 1.5 MB SRAM • 512 KB NVRAM • 1 MB BootROM • TCXO clock, 1.0 ms resolution, accurate to ±2 ppm
Communications
• 7 RS-232/485 serial ports
• RS-232 maintenance port
• 2 D.20 Link HDLC ports for communication to D20 I/O modules
• Wireless Ethernet Ready with PPP/TCP/IP
Self-diagnostics
• Program memory check sums
• RAM test
• Configuration verification
• Interrupt controller verification
• Serial port test
• Watchdog and power monitor
• I/O Module health checks
• Error logger
D20 Modems
The D20 main chassis has three modem slots with modems specifically designed to fit them.
WESDAC D20 Modem:
• 1200 Baud, 202 modem
Telenetics Modems:
• 2400 baud, 2-wire, dial-up modem
• Telenetics 14400 baud, 2-wire, dial-up modem
• Telenetics 14400 baud, 4-wire, leased line modem
Main brands include: ABB, Bailey, GE, FOXBORO, Invensys TRICONEX, Bentley BENTLY, A-B Rockwell, EMERSON EMERSON, B&R, MOTOROLA, FUANC, REXROTH, KUKA, HONEYWELL, NI, DEIF, Yokogawa, WOODWARD, Ryan, SCHNEIDER SCHNEIDER, Yaskawa, MOOG, EPRO, PROSOFT and other major brands
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