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  1. typhonic

    Yokogawa Processor Loading

    Does anyone know how to estimate processor loading in a Yokogawa CS3000 DCS? For example: if I configure 50 PID blocks, what percent of the processor's time does this consume. I know it depends on the particular processor model, but any you have knowledge of would be helpful.
  2. typhonic

    FlexEX I/O Fault Monitoring and Reset

    We are using Allen-Bradley FlexEX Remote I/O over ControlNet. The Discrete Output Modules are model 1797-OB4D/A. The CPU is a 1756-L55 Rev 13.25 and the programming software is RSLogix V13.03.00. The trouble we are having is that when we enable I/O Fault Monitoring on the module, the output...
  3. typhonic

    Differential Pressure Calibration Problem

    We use an orifice plate for natural gas flow measurement. We calibrate the Differential Pressure Transmitter (DPT) by placing a reference pressure on the high side and venting the low side. So for example, we may have 100 inches of water column gauge pressure on the high side and atmospheric...
  4. typhonic

    Remote Procedure Call

    Is it possible to make a remote procedure call from VB inside MS Excel to another computer on the same network. I want the remote computer to make a copy of a file on its own hard drive and I want to initiate the action from a VBA macro on my computer. I can make copies with a local copy...
  5. typhonic

    Parallel Deaerator Control

    We plan to install two Deaerators in a steam plant each sized for 60% of full load. Plant normal load is 25 - 50% of full load. What is the best way to control steam and water into the Deaerators? Currently, we plan to 1) pump water from condensate return through one valve controlled by...

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