Current Simulator PLC, Festo FPC404 Module, 24Vdc
Analog Signals 8 inputs 2 outputs
Digital Signals 24 inputs 56 outputs
Can store 16 programs and 16 sub-programs.
Can run 4 programs simultaneously
256 Flags, 8 timers, 16 Counters
Timer Clock Rates:
HSC Hundredths Of Seconds (10 milliseconds)
TSC Tenths of Seconds (100 milliseconds)
SEC Seconds
MIN Minutes\
#Timers can run from 10 Milliseconds up To 10 Minutes
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CPU Module (61kb)
Memory Card + AD/DA Converter (49kb)
IO Module 8 Inputs / 8 Outputs (64kb)
Output Module Only 16 Outputs (55kb)
Festo Statement List Sample Code (35kb)
Original Festo Programming Requirements For Earthquake Simulator
Omron 24vdc Relay Switches (82kb)
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PLC Control [69kb]
PLC Control And Relay Driver Board [56kb]
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The Festo FPC404 series PLC is was the original control system for the earthquake simulator when installed at the former Earth Exchange Museum. This series PLC ceased production and limited support from FESTO during the early 1990s. From the outset the intention with the simulator was to replace this control with a near real-time system enabling for control of the simulator by means of globally monitored seismic data. During late 2001 the Festo FPC404 series PLC was replaced by a standard PC installed with a ComputerBoards CIO-DIO48H digital I/O card and a 48-channel solid state relay rack. Developed in C and Perl, Seismonitor v0.9 has been written to both move the system into an open (Linux) operating environment and introduce a near-real-time, IP-based interactivity to the system.
Current Seismonitor Control Specifications
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