Opto 22

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KB80442
FactoryFloor and Cyrano controller time incorrect if powered up between 8 p.m. and 11:59 p.m.
Revision:  1.0
Published:  12/5/2008
Applies To
Firmware for:
SNAP-LCM4
SNAP-LCSX-PLUS
SNAP-LCSX
M4RTU - Rev. 2
Versions
Problem was discovered in firmware version:  
R4.1e, OptoControl
R3.2k, Cyrano
Problem was discovered in firmware version:  
With loader version R4.0a or R4.0b

Problem is fixed in version:  
R4.1f, OptoControl
R3.2l, Cyrano
Problem is fixed in version:  
With loader version R4.0c

SYMPTOMS

The controller time on FactoryFloor and Cyrano controllers is incorrect if power is turned on between 8:00:00 p.m. (20:00:00) and 11:59:59 p.m. (22:59:59). The time is 20 hours less than the actual time. For example, if the controller is powered down at 3:00 a.m. and is powered up at 9:00 p.m. (21:00), the controller time will be 1:00 a.m.

A controller also exhibits the problem if it goes into loader mode (like when downloading a kernel) during the affected timeframe.

How to tell if your controller has the problem:

  1. Set the PC time to any time between 20:00:00 and 23:59:00 (so that you have enough time to run the experiment before the clock rolls over to 00:00:00).
  2. Start OptoTerm.
  3. Synchronize the PC time to the controller by inspecting the controller and clicking Sync to PC.
  4. Verify the controller time is correct.
  5. Turn off power to the controller and then turn it back on.
  6. Inspect the controller with OptoTerm. Your controller has the problem if the time is 20 hours less than expected.

WORKAROUND

If the problem occurs as a result of the controller being in loader mode, put the controller in kernel mode, then set the correct time by inspecting it with OptoTerminal (View→Status), and clicking the Sync time to PC option.

RESOLUTION

Opto 22 has resolved this issue. If you would like to have the loader updated on your controller, contact Opto 22 to set up an RMA to send in your controller. The workaround mentioned above is the recommended procedure should the problem occur as a result of going into loader mode.

Relevant Downloads
No relevant downloads have been specified.
Questions? Contact Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com

DISCLAIMER

This Opto 22 Knowledge Base ('OptoKB') article is intended to provide general technical information on a particular subject or subjects and is not an exhaustive treatment of such subjects. Accordingly, the information in this OptoKB article is not intended to constitute application, design, software, or other professional engineering advice or services. Opto 22 may modify the OptoKB articles at any time. Before making any decision or taking any action which might affect your equipment, you should consult a qualified professional.

OPTO 22 DOES NOT WARRANT THE COMPLETENESS, TIMELINESS, OR ACCURACY OF THE DATA CONTAINED IN THIS OPTOKB ARTICLE AND MAY MAKE CHANGES THERETO AT ANY TIME AT ITS SOLE DISCRETION WITHOUT NOTICE. FURTHER, ALL INFORMATION CONVEYED HEREBY IS PROVIDED TO USERS 'AS IS.' IN NO EVENT SHALL OPTO 22 BE LIABLE FOR ANY DAMAGES OF ANY KIND INCLUDING DIRECT, INDIRECT INCIDENTAL, CONSEQUENTIAL, LOSS PROFIT, OR DAMAGE, EVEN IF OPTO 22 HAS BEEN ADVISED ON THE POSSIBILITY OF SUCH DAMAGES.

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