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KB47868
SNAP-AIVRMS and SNAP-AIARMS may have periodic inconsistent readings by serial B3000
Revision:  3.0
Published:  4/24/2006
Applies To
Firmware for:
B3000
Versions
Problem was discovered in version:  
81.22
Released version problem is resolved in  
81.32

SYMPTOMS

The serial B3000 typically reads the SNAP-AIVRMS and SNAP-AIARMS normally, but over time, some readings go to zero, or are twice the actual value.

RESOLUTION

Brain firmware version 81.32 corrects this issue. Determine the firmware version in your serial B3000 using the suggested methods:

If you are using OptoControl:

1. A serial B3000 unit may represent up to two digital I/O units, and two analog I/O units. Select one of the configured I/O units to inspect in Debug mode.

2. In Debug mode, double-click the I/O unit in the strategy tree. The View I/O Unit window appears.

3. The version is listed under Firmware Version.

4. If the version is within the affected version range, contact Opto 22 Product Support.

When using OptoControl, but OptoControl strategy source code won’t be available:

1. Sample OptoControl source code to retrieve the B3000 firmware version is available.

2. The version may be viewed in OptoDisplay Runtime by using OptoDisplay Configurator to add a text object with a dynamic attribute to read “Text In (from controller).” Associate the text object with the OptoControl tag that receives the version information from the B3000 brain.

3. Contact Opto 22 Product Support to request the example.

If you are using a custom application in a Windows environment:

If you are experiencing the above symptoms and are using a custom application in a Windows environment, contact Opto 22 Product Support to determine the firmware revision.

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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