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KB54562
Unexpected ‘Ramp Analog Output’ PAC Control/ioControl command response if ramp endpoints are out of range
Revision:  3.0
Published:  7/5/2007
Applies To
SNAP-PAC-R1 Controller Firmware
SNAP-PAC-EB1 Brain Firmware
SNAP-UP1-ADS Controller/Brain Firmware
SNAP-UP1-M64
Versions
Problem was discovered in version:  
R8.0b SNAP PAC firmware
Problem was discovered in version:  
R7.1h Ultimate I/O firmware
Problem is fixed in version:  
R8.0c SNAP PAC firmware
Problem is fixed in version:  
R7.2d Ultimate I/O firmware

SYMPTOMS

For the PAC Control Ramp Analog Output command, if the ramp’s endpoints are set outside the range of the analog output module, then the analog output does not function correctly. The next Move command to the output causes the output to ramp to the position of the prior Ramp Analog Output command.

As an example, the problem may occur if the ramp endpoint for a 4 – 20 mA output point is set to 0 mA, or if the ramp endpoint for a 0 – 10 VDC output point is set to 12 VDC.

RESOLUTION

Opto 22 has resolved this issue.

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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