Configure Vr Channels; High-Level Api For Vr Channel Configuration - Ametek DN VR-608 Series User Manual

4.5 Configure VR
Channels
//Configure session to access VR channel 0.
//Configure channel 0 for a Timed measurement.
CUeiVRChannel* vr0 = vrSession.CreateVRChannel(
Table 4-1 High-level API for VR Channel Configuration
Method
SetMode
SetZCMode
SetZCLevel
SetAPTMode
SetAPTThresholdDivider
SetADCMovingAverage
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United Electronic Industries, Inc.
The CreateVRChannel() method adds a VR channel to the session, sets the
channel mode, and returns a pointer to the channel.
The input parameters are:
• resource – specifies the device and subsystem (see Section 4.4).
• mode – Counter/timer mode (see descriptions in Section 2.2.4.1). One
of the following tUeiVRMode values.
•
UeiVRModeDecoder
•
UeiVRModeCounterTimed
•
UeiVRModeCounterNPulses
•
UeiVRModeCounterZPulse
•
UeiVRModeCounterTorque
•
UeiVRModeCounterTimedPulsePeriodMeasurement
You can configure additional channel settings by calling the CUeiVRChannel
methods summarized in Table 4-1. Settings apply to either an individual channel
(C), a pair of channels (P), or the entire board/layer (L). For example, setting the
ZC mode on Channel 0 automatically sets the same mode for Channel 1.
Configuration status can be obtained by calling the corresponding "get" or "is"
method.
C/P/L Rev.1
C/P

P

C

P

C
P
February 2024
DNx-VR-608 Variable Reluctance Interface
Programming with the High-level API
"pdna://192.168.100.2/Dev1/vr0",
UeiVRModeCounterTimed);
Rev.2 Description
Select counter/timer mode.

Select zero crossing detection mode.

Set zero crossing level for UeiZCModeFixed
(-5 V to +5 V). If the desired zero crossing level is
0 V, UEI recommends setting the desired zero

crossing level to a value slightly above 0 to avoid
false positives, e.g., 0.1 V.
Select peak threshold detection mode.

Set peak threshold divider for
UeiAPTModeLogic (1...4). Threshold will be a

fraction of moving average peak value, where 1 =
½, 2 = ¼, 3 = 1/8th, and 4 = 1/16th.
Moving average for UeiZCModeLogic and
UeiAPTModeLogic (0...3, where 0 = off, 1 = 3

samples, 2 = 4 samples, 3 = 8 samples).
Chapter 4 29
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