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  1. M

    Security Survey for Automation/Control Engineers

    Anthony, Yep, just went live. Mike
  2. M

    Security Survey for Automation/Control Engineers

    Anthony, I'd like permission to share outside of control.com. My twitter followers would likely be interested in filling it out. Also, it appears you're looking mainly for owners of infrastructure, and not contractors/consultants/service providers. Is this accurate? Mike
  3. M

    Patches & Updates

    Usually I bypass the whole painful website, and contact the distributor at Invensys directly. I just tried navigating to the patches, and may have gotten lucky... 1. Go to http://global.wonderware.com/EN/Pages/WonderwareTechnicalSupport.aspx and register 2. Login on...
  4. M

    Random Serial link Fault in Preferred Rack of LM-Honeywell PLC

    Random Serial Link Failures are often caused by: 1. Grounding issues 2. Floating logic issues in the serial port (basically, not all the pins are connected, and the system interprets it as undetermined) 3. Misconfigured baud rate, parity, etc. Is this a problem with new equipment, or...
  5. M

    Siemens and the Cisco 2960

    Things to try: 1. Are there lights on both the switch and the device? Do they stay persistent? 2. Is there a mismatch regarding speeds, i.e. Is the switch set to 1000 MB, while the system can only do 100 MB? Or vice versa. 3. Is the port disabled administratively, or is there a VLAN...
  6. M

    Heads Up - PCAnywhere

    Everyone, Not every engineer watches the advisories I do, so I thought a small PSA might be appropriate. Symantec, the vendor of PCAnywhere, is recommending that customers disable use of PCAnywhere until they have time to produce patches for currently known vulnerabilities. On of the...
  7. M

    Erasing MARK VIe/Ve Controller Media

    Thanks CSA! I've confirmed with another contact of mine that wiping the flash will fully remove all the application information, logic, IP Addresses, etc. He recommended your approach CSA, completely destroy the card just to be safe. I'll try the GEConnect website as well, but so far I'm...
  8. M

    Erasing MARK VIe/Ve Controller Media

    We're performing an upgrade of our Mark VIe controllers, and as part of our NERC CIP requirements we have to clear out the controller media before the controllers can leave the site. The requirement states that I need to "destroy or erase the data storage media to prevent unauthorized...
  9. M

    Transformer

    steveiee is saying if that actually happened to your transformer, buy a new one. Adding an air gap to a transformer core will generally limit the maximum current, based on the difference in flux. The larger the gap, the greater the leakage, the smaller the maximum current. The ratio of...
  10. M

    Backing up and recovering Mark V

    Forgive me if this isn't correct, most of my administration experience is on the MarkVe and MarkVIe. From what I remember, if you clone a drive from one system and put it into a busted system, make sure you are off the ARCNET. You may end up with a conflict on the bus, which can cause...
  11. M

    Demanded PLC or HMI certificates for naval application

    How do you mean? Security certificates like the ones used to verify trusted communications, or are you looking for device certifications (like IEEE, UL, IEC, etc)? Mike
  12. M

    Survey: A Question for Controls ENgineers

    A colleague of mine called me out for not being straightforward in this post, and for that I'm sorry. It's not my intention to deceive, but to inform by example, an example based on the Stuxnet infection in Iran. So, fellow hard-hats, I'm sorry for not just coming out and saying "Stuxnet"...
  13. M

    Survey: A Question for Controls ENgineers

    I'd like the control system experts on the board to consider a hypothetical situation, and describe their next few steps in analyzing and fixing the problem. <b>The Situation:</b> You've been experiencing periodic failures of equipment that is important in the reliable and successful...
  14. M

    Latest trends in Industrial Automation

    Security is a major trend in industrial automation. It's everywhere.... Mike
  15. M

    Data Security

    > For data security point of view, what is the best way to transmit mission critical signals, if you have the option between analog/dry contact and RS-485. < How many signals? How far is the run? Is it staying as a single piece of copper? Are you using any other technology in the...
  16. M

    Media Converter Madness

    Problems communicating with an INFI-90 system over fiber media converters using serial SemAPI interface. Communications drop constantly, points take forever to load. Basically: INFI-90<->MediaCon<->~500M MMF<->MediaCon<->SemAPI We're reasonably sure the problem is not at the system...
  17. M

    Rebooting of Mark V control processors during Lightening

    This could also be related to the communications related issues that show up in the logs. A ground potential rise could certainly disrupt your ARCNet communications as well, ground loops are a common problem on RG-62/U based ARCNet. No communications means no voting, which means <P> takes...
  18. M

    Rebooting of Mark V control processors during Lightening

    Has anyone thought about ground potential rise? When a lightening strike happens, it is dispersed throughout the grounding grid in the substation, raising the electric potential of the Ground in the immediate area. This rise in potential is distributed to any electrically connected component...
  19. M

    GE MARK IV/V/VI Interface Options

    Hello Owners of the GE MARK IV/V/VI D-EHC system! I'm doing a little bit of research regarding the ways these systems can interface directly to the DCS, and I'm trying to come up with some of the technical benefits/deficiencies associated with each of the methods. The methods I'm looking at...
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