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FI5 Tech Notes

GetStatus returns zero or zBus error 'Failed locking device.'

TN0193

Product: FI5, ActiveX
Version: All
Date Added: 2005-08-19

Issue

Attempting to connect to a TDT device more than once using the ActiveX methods ConnectRxx (e.g. ConnectRX6, ConnectRP2 etc.) can cause a communication failure when using the gigabit interface.

Workaround

Connect to a device only once and then use ClearCOF and LoadCOF to ensure that a new .rco file is loaded.

PA5 in the right slot randomly resets to 0

TN0164

Product: PI5, FI5
Version: 6 (red dot)
Date Added: 2005-01-13

Issue

When a PA5 is mounted in the right, front slot of the zBus caddie, a set attenuation command will fail to attenuate the signal and the PA5 will reset to 0. This is the result of a communication failure associated with the Red Dot PI5/FI5 Gigabit Interface.

Workaround

This issue is resolved with v60 of the TDT Drivers. Upgrade to v60 to eliminate this issue.

PA5 Attenuation cannot be reset

TN0138

Product: FI5, PI5
Version: 6 (red dot)
Date Added: 2004-09-01

Issue

Setting the attenuation of a PA5 mounted in the left side of a device caddie, fails after a few updates. SetAtten returns 0 and GetAtten returns the previous value.

Workaround

Put PA5s in the right side of the device caddie.

'Access to path and application was denied' error message

TN0124

Product: PI5, FI5
Version: PI5 with serial numbers < 2000 and FI5s with serial numbers < 5000 (and marked with an Orange Dot on the Face Plate)
Date Added: 2004-04-13

Issue

On some systems using the Gigabit interface, problems with synchronizing device caddies and timing of data transfers cause large data transfers or repeated short data transfers to fail. When the failure occurs OpenEx users might see any of several error messages. The most common is:

... Trouble saving data to tank. ...TTank Server Error ... Server Call: TankError Error: Tank unable to cache events ...

Users might also see errors such as:

  • Trouble saving data to tank....

  • Trouble accessing target ...

  • Trouble reading data from device ...

However, these errors might be also be symptoms of other less serious problems, such as incorrectly defined targets.

Solution

This issue has been resolved with design improvements to the Gigabit high-speed interface. These modifications improve Gigabit stability, error checking, and overall performance and include modifications to the TDT Drivers software, the firmware on the PI5 card, and the FI5 Gigabit modules that reside in the zBus device caddies. An upgrade package including: a PI5 upgrade chip, a TDT Drivers v56 (or later) CD, and replacement FI5(s) (marked with a red dot on face plate) will be sent to customers who purchased the affected interfaces. If you are experiencing problems, contact technical support for assistance.

Communication to RP2 is in the left-hand slot is lost

TN0117

Product: FI5, PA5
Version: Serial numbers in the 2000s range
Date Added: 2003-01-06

Issue

Communication problems sometimes occur when setting the attenuation of a PA5 in the right-hand slot of the zBUS device caddie. This problem only occurs when using the Gigabit interface with FI5s that have serial numbers in the 2000s range. The problem may manifest in two ways. If there is another PA5 in the left-hand slot, then the attenuation value of the left PA5 sometimes gets set along with the right PA5. If an RP2 is in the left-hand slot, communication to the device is sometimes lost.

Workaround

When mounting an RP2 and PA5 in a single device caddie, use a configuration where the PA5 is on the left and the RP2 is on the right. If two PA5s are used, mount them in separate device caddies.

Solution

All new FI5s have been modified to resolve this issue.

CPU usage goes to 100% when transferring data from TDT hardware to the computer

TN0046

Product: PI5, FI5
Version: All
Date Added: 2002-08-30

Issue

When data is being transferred from the TDT hardware to the computer, CPU usage on the computer goes up to 100%. This is typically seen when doing a ReadTag from a large buffer. The computer is still usable (can ran other programs, etc.) despite the high CPU usage, however, other programs that are running on the computer may slow down.