Difference between revisions of "VCP1000 User Guide"
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<metadesc>Measure up to ±40V with the 20-bit Voltage Input Phidget. Connects to a port on your VINT Hub.</metadesc> | <metadesc>Measure up to ±40V with the 20-bit Voltage Input Phidget. Connects to a port on your VINT Hub.</metadesc> | ||
[[Category:UserGuide]] | [[Category:UserGuide]] | ||
| − | == | + | ==Part 1: Setup== |
| − | {{ | + | {{PT1 Deck Sequence}} |
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| − | + | ||
| + | == Part 2: Using Your Phidget == | ||
| − | + | ===About=== | |
| − | + | The VCP1000 allows you to measure voltages up to ±40V. This Phidget is ideal for monitoring power supplies, adapting devices to be used with Phidgets, or other voltage monitoring applications. You can manually select the voltage range (±312mV, or ±40V) in your program to maximize the resolution of your measurements. | |
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| − | + | ===Explore Your Phidget Channels Using The Control Panel=== | |
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| − | + | You can use your Control Panel to explore your Phidget's channels. | |
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| − | + | '''1.''' Open your Control Panel, and you will find the '''20-bit (+-40V) Voltage Input Phidget''' channel: | |
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| − | + | [[Image:VCP1000_Panel.jpg|link=|center]] | |
| − | + | '''2.''' Double click on the channel to open an example program. This channel belongs to the '''Voltage Input''' channel class: | |
| − | + | {{UGC-Start}} | |
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| − | + | ||
| − | + | {{UGC-Entry|Voltage Input:| Measures the voltage across the VCP1000’s terminals| | |
| + | In your Control Panel, double click on "20-bit (+-40V) Voltage Input Phidget": | ||
| − | For example, | + | [[Image:VCP1000-VoltageInput.jpg|center|link=]]}} |
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| + | {{UGC-End}} | ||
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| + | {{UG-Part3}} | ||
| + | |||
| + | == Part 4: Advanced Topics and Troubleshooting == | ||
| + | {{UGC-Start}} | ||
| + | {{UGC-Addressing}} | ||
| + | {{UGC-Graphing}} | ||
| + | {{UGC-DataInterval}} | ||
| + | {{UGC-Entry|Isolation| | ||
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| + | The VCP1000 is electrically isolated. A power surge in the circuit being measured would only affect the VCP1000, so your VINT Hub or computer will remain unharmed. Having isolation also helps prevent the formation of [[Improving_Phidgets_Hardware_Reliability|ground loops]] in your system. | ||
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| + | With isolation on the VCP1000, you can measure the voltage differential between two points of a circuit regardless of their relation to ground. The voltage differential between those points must be within the specification of the sensor. | ||
| + | |||
| + | For example, in the pictured battery charging circuit, there is sufficient complexity between the battery and VINT Hub that directly measuring the voltage with a non-isolated sensor could be a risky proposition. However, with VCP1000, the battery voltage may be measured directly, ignoring the circuits in between. | ||
[[Image:VCP1000_Isolation_Battery_Diagram.jpg|link=|center|frame|Measuring the battery voltage in this circuit is made easy through isolation!]] | [[Image:VCP1000_Isolation_Battery_Diagram.jpg|link=|center|frame|Measuring the battery voltage in this circuit is made easy through isolation!]] | ||
| + | }} | ||
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| − | {{ | + | {{UGC-End}} |
Latest revision as of 20:47, 28 January 2021
Part 1: Setup
Part 2: Using Your Phidget
About
The VCP1000 allows you to measure voltages up to ±40V. This Phidget is ideal for monitoring power supplies, adapting devices to be used with Phidgets, or other voltage monitoring applications. You can manually select the voltage range (±312mV, or ±40V) in your program to maximize the resolution of your measurements.
Explore Your Phidget Channels Using The Control Panel
You can use your Control Panel to explore your Phidget's channels.
1. Open your Control Panel, and you will find the 20-bit (+-40V) Voltage Input Phidget channel:
2. Double click on the channel to open an example program. This channel belongs to the Voltage Input channel class:
In your Control Panel, double click on "20-bit (+-40V) Voltage Input Phidget":
Part 3: Create your Program
1. Setting up your Programming Environment
Part 4: Advanced Topics and Troubleshooting
Before you open a Phidget channel in your program, you can set these properties to specify which channel to open. You can find this information through the Control Panel.
1. Open the Control Panel and double-click on the red map pin icon:
2. The Addressing Information window will open. Here you will find all the information you need to address your Phidget in your program.
See the Phidget22 API for your language to determine exact syntax for each property.
In the Phidget Control Panel, open the channel for your device and click on the 
icon next to the data type that you want to plot. This will open up a new window:
If you need more complex functionality such as logging multiple sensors to the same sheet or performing calculations on the data, you'll need to write your own program. Generally this will involve addressing the correct channel, opening it, and then creating an Event Handler and adding graphing/logging code to it.
The quickest way to get started is to download some sample code for your desired programming language and then search google for logging or plotting in that language (e.g. "how to log to csv in python") and add the code to the existing change handler.
The Change Trigger is the minimum change in the sensor data needed to trigger a new data event. The Data Interval is the time (in ms) between data events sent out from your Phidget. You can modify one or both of these values to achieve different data outputs. You can learn more about these two properties here.
The VCP1000 is electrically isolated. A power surge in the circuit being measured would only affect the VCP1000, so your VINT Hub or computer will remain unharmed. Having isolation also helps prevent the formation of ground loops in your system.
With isolation on the VCP1000, you can measure the voltage differential between two points of a circuit regardless of their relation to ground. The voltage differential between those points must be within the specification of the sensor.
For example, in the pictured battery charging circuit, there is sufficient complexity between the battery and VINT Hub that directly measuring the voltage with a non-isolated sensor could be a risky proposition. However, with VCP1000, the battery voltage may be measured directly, ignoring the circuits in between.
