BC Biomedical ESU-2400, User Manual

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The communication protocol provides a means to completely configure and use the
ESU-2400 from a PC. All of the functions available through the front panel can be
performed through the communication ports. All of the measurements made by the
ESU-2400 are accessible as well. This provides for hands free or automated operation
of the ESU-2400.
Communication Ports
The ESU-2400 has three USB ports that can be used to connect to a PC. The connection
must be made using an FTDI USB null modem cable (BC Part number BC20-41360).
This cable allows the PC to see the connection to the ESU-2400 as a serial port. To
determine the serial port number, refer to the Ports section of the Device Manager on the
PC. The Serial port is configured as 115,200 Baud Rate, 8 Data Bits, 1 Stop Bit, and No
Parity.
Command Syntax
The command description is broken into 3 columns; the KEYWORD, the PARAMETER
FORM, and COMMENTS.
Keyword
The KEYWORD column provides the name of the command. The actual name of the
command consists of one or more keywords since SCPI commands are based on a
hierarchical structure, also known as a
tree system .
In such a system, associated commands are grouped together under a common node in
the hierarchy, analogous to the way leaves at a same level are connected at a common
branch. This and similar branches are connected to fewer and thicker branches, until they
meet at the root of the tree. The closer to the root, the higher a node is considered in the
hierarchy. To activate a particular command, the full path to it must be specified.
This path is represented in the following tables by placing the highest node in the left-
most position. Further nodes are indented one position to the right, below the parent node.
The highest level node of a command is called the Keyword, followed by the Node,
Subnode, and then the value.
COMMUNICATION PROTOCOL