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KB48510
SNAP-B3000-ENET may reset under particular high speed I/O conditions and high speed SNAP-IDC5Q counting
Revision:  4.0
Published:  4/24/2006
Applies To
Firmware for:
SNAP-B3000-ENET
Versions
Problem was discovered in version:  
R6.1a firmware
Problem is corrected in version:  
R7.0a firmware

SYMPTOMS

Rapid I/O activity on a rack with a SNAP-B3000-ENET and a SNAP-IDC5Q, may cause the SNAP-B3000-ENET to reset. The symptoms are more likely to occur if the SNAP-IDC5Q is installed in a module position that is further away from the brain board.

RESOLUTION

Opto 22 has corrected this issue.

MORE INFORMATION

Here is an example of how this problem is seen:

An Ultimate I/O unit (SNAP-UP1-ADS) is rapidly turning on and off digital output points that are on a separate mounting rack with a SNAP-B3000-ENET. On the same SNAP-B3000-ENET rack, a SNAP-IDC5Q quadrature module is read in a tight programming loop by the Ultimate I/O unit. If the quadrature module is in a position further away from the brain, position 8 for example, the SNAP-B3000-ENET may reset.

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

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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.

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