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NOTES
Register Based Programming
8 HP E1509 Fixed Filter+Amplifier SCP
1) When OTD is enabled, the inputs have up to 0.2µA injected into them. If
this current will adversely affect your measurement, but you still want to
check for open transducers, you can enable OTD, make a single scan, check
the CVT for bad measurements, then disable OTD and make your regular
measurement scans. The specifications apply only when OTD is off.
2) Allow 5 minutes before checking for open transducers to allow filter
capacitors to charge.
To enable or disable Open Transducer Detection, use the
DIAGnostic:OTDetect <enable>, (@<ch_list>) command.
•
The enable parameter can specify ON or OFF
•
An SCP is addressed when the ch_list parameter specifies a channel
number contained on the SCP. The first channel on each SCP is:
0, 8, 16, 24, 32, 40, 48, and 56
To enable Open Transducer Detection on all channels on SCPs 1 and 3:
DIAG:OTD ON, (@100,116)
To disable Open Transducer Detection on all channels on SCPs 1 and 3:
DIAG:OTD OFF, (@100,116)
The register-based commands shown here are covered in Appendix D of the
HP E1413/E1313 manual. You should read that section first to become
familiar with accessing registers and executing Register-Based Commands.
This section will relate those commands to the parameter values which are
specific to this Plug-on.
When Register Programming an SCP most communication is through the
Signal Conditioning Bus. For that you will use the Register Commands:
SCBWRITE <regaddr> <regvalue>
and
SCBREAD? <regaddr>
0 is on SCP 1 and 16 is on SCP3
Register Based Programming
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