KB83135
Published: July 30, 2013
Revision: 1.0
OptoOPCServer crashes when using OPC 1.0 interface
Applies To:
OptoOPCServer
Versions Affected:
Applies to all versions up to & including: R9.3a
Symptoms:
OptoOPCServer crashes when you are using the OPC 1.0 interface. Most customers use the OPC 2.0 interface, which is the default.
The crash error message may look similar to this:
OptoOPC.exe - Application Error
X The instruction at "0x7c9108d3" referenced memory at "0xfffffff8". The memory could not be "read".
Click OK to terminate the program.
Workaround:
Use the OPC 2.0 interface if possible.
Or
contact Product Support for beta version B9.3b (9.3.1.1) dated 7/8/2013 (or newer). Use the beta version following these instructions:
- Close PAC Display and all OPC clients.
- Close OptoOPCServer.
- Browse to the OptoCOM folder.
- On Windows XP, it will be at:
C:\Windows\System32\OptoCOM\
- On 64-bit versions of Windows, it will be at: C:\Windows\SysWOW64\OptoCom\
4. Replace the existing version of OptoOPC.exe with the beta version.
Resolution:
Opto 22 has resolved this issue and will include the fix in an upcoming release.
Questions?
Contact: Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com
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