SCPI with OXYGEN

The OXYGEN SCPI remote control (RC_SCPI) interface is available via TCP networking using the TCP endpoint port number 10001. You can easily use HyperTerminal or PuTTY in raw TCP configuration and ASCII encoding to test the connection and issue SCPI commands and queries.

Note: The RC_SCPI interface permits only one active client connection to transmit TCP data. Multiple connections are not possible.

The OXYGEN software executes the received SCPI messages in sequential order. Each SCPI command and query is blocking and does not allow any further commands or queries executed until it is finished.

The internal application model of the OXYGEN software consists of major functions, potentially mapped to SCPI systems. The following table gives an overview to those mappings:

Part of OXYGEN

Description

SCPI Headers and Systems

Application Control

Control the application state and configuration via setups

 
:SETup:*
:SYSTEM:*
:COMMUNICATE:*

Acquisition Control

Control the acquisition state of the application.

 
:ACQUISITION:*

Recording Control

Control the recording state of the application

 
:STORE:*

Measurement Values

Read out actual measurement values.

 
:RATE:*
:NUMERIC:*

Channel Access

Get channel information and get/set properties.

 
:CHANNELlist:*

Setup OXYGEN Measurement Software for SCPI use

  1. Navigate to System Settings on the Dewetron Measurement device with Oxygen Software

  2. Go to “Remote Control” Tab on the left

  3. Enable the Remote Control feature and select the protocol type SCPI

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Oxygen SCPI Module Configuration

The Oxygen SCPI module features three primary configuration parameters to manage remote communication and data visibility.

  • TCP/IP Port number:

    Defines the specific network port on which the Oxygen SCPI service listens for incoming connection requests.

    Note: Ensure the selected port is not blocked by a firewall or utilized by another service.

  • Connection mode:

    Determines how the module handles concurrent access from external controllers:

    • Single Client: The module accepts only one active SCPI session. Any further connection attempts will be rejected until the current client disconnects.

    • Multiple Clients: The module allows multiple clients to connect and send commands

  • Show ELOG channels:

    Controls the visibility of Event Logging (ELOG) channels within the software interface.

    • Disabled (Default): ELOG channels are hidden to reduce clutter, as they are typically only required for internal SCPI communication.

    • Enabled: Makes these channels visible for debugging or advanced tracking purposes.