VXI VT1536A user manual Programming With Scpi Commands, Checking the ID of the SCP

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Programming With SCPI Commands

*RST & Power-up Conditions

Checking the ID of the SCP

The SCPI commands shown here query the SCP's identification string, and perform VT1536A channel configuration. The VT1415A/19A doesn't provide SCPI commands to read an input channel or control an output channel. Read and write operations are performed by the VT1415A/19A's Algorithm language. See the following section for a digital input/output example.

The default configuration of the VT1536A at power-up or after a *RST command is:

•Channel I/O direction is as set by the threshold/direction switches (See “Setting Configuration Switches” on page 4.).

•Input and output channel polarity will be NORMal. This means:

--For inputs; when the input opto isolator is being driven (is "on"), an algorithm will read a logic 1. When the opto is off, the algorithm reads a zero.

--For outputs; when an algorithm writes a 1, the output relay will turn on ("close"). Writing a zero will turn the relay off.

Remember, polarity NORMal means "1 = ON".

•Output configured channels will have their relays turned off ("open").

To verify the SCP type(s) installed on your VXI module, use the SYSTem:CTYPE? (@<channel>) command.

•The channel parameter specifies a single channel in the channel range covered by the SCP of interest. The first channel number for each of the eight SCP positions are; 0,8,16,24,32,40,48, and 56.

The value returned for the VT1536A SCP is:

HEWLETT-PACKARD,E1536A Isolated Digital I/O SCP,0,0

To determine the type of SCP installed on channels 0 through 7 send

SYST:CTYPE? (@100)

query SCP type @ ch 0

enter statement here

enter response string

Determining Input

Threshold Level and

I/O Direction

The input threshold level and I/O direction is set (for each individual channel) by hardware switches (See “Setting Configuration Switches” on page 4.). To determine how a channel is currently configured, use the command:

INPut:THReshold:LEVel? (@<channel>)

•Channel must specify a single channel

10 VT1536A Isolated Digital Input/Output SCP

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Contents User’s and Scpi Programming Manual Page Introduction About this ManualSetting Configuration Switches Identifying the Plug-onInstallation Connecting To The Terminal Module Recommended Signal Connections VT1415A/19A/22A Terminal Module ConnectionsInput and Output Characteristics Recommended Connections and Voltage LimitsVT1536A Input and Output Sections Example Using Debounce Feature Programming With Scpi Commands Checking the ID of the SCPConfiguring Input Channel Polarity 12 VT1536A Isolated Digital Input/Output SCP Configuring Output Channel Polarity Programming with the VT1415A/19A Algorithm Language RST and *TST? ImportantSpecifications Output Characteristics16 VT1536A Isolated Digital Input/Output SCP

VT1536A specifications

The VXI VT1536A is a versatile and sophisticated test solution designed to enhance the efficiency and accuracy of electronic testing applications. This instrument is particularly favored in environments where precision and reliability are paramount, such as telecommunications, aerospace, and automotive industries.

One of the standout features of the VT1536A is its modular design. This allows users to customize the instrument according to specific testing requirements by adding or removing different modules. Each module is built to deliver high performance, ensuring that the VT1536A remains adaptable in a rapidly evolving technological landscape.

The VT1536A is equipped with advanced signal conditioning capabilities. It can measure a wide range of parameters, including voltage, current, and resistance, with exceptional accuracy. This makes it ideal for both laboratory and field testing scenarios where varied signal types are encountered. The instrument also supports multiple measurement modes, allowing engineers to switch seamlessly between different analysis techniques as needed.

Another significant characteristic of the VT1536A is its integration with modern communication technologies. The device is compatible with various protocols, including GPIB, USB, and Ethernet, offering flexibility in remote operation and easy integration into existing test setups. This connectivity simplifies the process of data acquisition and enables more efficient testing workflows, benefiting teams that rely on collecting vast amounts of data.

In terms of display and user interface, the VT1536A features a high-resolution screen that provides clear visibility of measurement results and settings. The intuitive layout ensures that users can quickly navigate through the instrument’s functions, minimizing the learning curve associated with new equipment.

The durability of the VXI VT1536A is another advantage, as it is constructed to withstand the rigors of industrial environments. This reliability, paired with its robust software support, including firmware updates and diagnostic tools, ensures that the instrument remains a valuable asset throughout its lifecycle.

In conclusion, the VXI VT1536A is a powerful, robust, and flexible testing instrument. Its advanced features, technologies, and modular characteristics make it a top choice for engineers looking to enhance their testing capabilities while ensuring high levels of precision and reliability in their measurements.
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