3: Functions and features Model 2450 Interactive SourceMeter® Instrument
3-120 2450-901-01 Rev. B/September 2013
TSP-Link nodes
Each instrument or enclosure attached to the TSP-Link expansion interface must be identified. This
identification is called a TSP-Link node number, and the instruments or enclosures are called nodes.
Each node must be assigned a unique node number.
An individual node is accessed as node[N], where N is the node number assigned to the node. You
can access all TSP-accessible remote commands as elements of the specific node. The following
attributes are examples of items you can access:
• node[N].model: The product model number of the node.
• node[N].version: The product version of the node.
• node[N].serialno: The product serial number of the node.
Assigning node numbers
Each Model 2450 instrument is initially assigned as node 2. You can assign node numbers from 1 to
64. However, the system can only include 32 physical nodes.
The node number for each instrument is stored in its nonvolatile memory and remains in storage
when the instrument is turned off.
You can assign a node number to an instrument using the front panel or by using a remote command.
To assign a node number using the front panel:
1. Press the MENU key.
2. Under System, select Communication. The SYSTEM COMMUNICATION window opens.
3. Select the TSP-Link tab.
4. Next to Node, set the TSP-Link address for this instrument.
To assign a node number using a remote command:
Set the tsplink.node attribute of the instrument:
tsplink.node = N
Where: N = 1 to 64
To determine the node number of an instrument, you can read the tsplink.node attribute by
sending the following command:
print(tsplink.node)
The above print command outputs the node number. For example, if the node number is 1, a 1 is
displayed.
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