Instructions

Table Of Contents

Model DMM6500

6½ Digit Multimeter User's Manual Section 9: Measuring power using digitizing and TSP-

Link

DMM6500-900-01 Rev. B / August 2019 9-5

The communication from the computer is made directly to the first DMM6500 (node 1) in the

following TSP code. This code makes the first DMM6500 the master in this TSP-Link network, with

the second DMM6500 as the subordinate. You can change the master to be the second DMM6500,

but you must modify the code and modify how the TSP-Link network is initialized. The master node

does not require the node[x]. prefix.

If you need to improve program execution speed, remove the node[1] prefixes in the following TSP

code.

Using TSP commands

The following TSP code is designed to be run from Keithley Instruments Test Script Builder (TSB).

TSB is a software tool that is available from tek.com/keithley

. You can install and use TSB to write

code and develop scripts for TSP-enabled instruments. Information about how to use TSB is in the

online help for TSB and in the “Introduction to TSP operation” section of the Model DMM6500

Reference Manual.

To use other programming environments, you may need to make changes to the example TSP code.

By default, the DMM6500 uses the SCPI command set. You must select the TSP command set

before sending TSP commands to the instrument.

To enable TSP commands:

1. Press the MENU key.

2. Under System, select Settings.

3. Set the Command Set to TSP.

4. At the prompt to reboot, select Yes.

This sequence of TSP commands measures power using the digitize function and TSP-Link. After the

code executes, the data is displayed in the Instrument Console of Test Script Builder.

Send the following commands for this example application:

-- Initiate the tsp-link network.

tsplink.initialize()

-- Set a delay of 0.5 seconds.

delay(0.5)

-- Reset master instrument at node 1.

node[1].reset()

-- Set up TSP-link trigger line 1 to trigger the subordinate node digitize function.

node[1].tsplink.line[1].mode = tsplink.MODE_TRIGGER_OPEN_DRAIN

node[1].trigger.tsplinkout[1].stimulus = trigger.EVENT_NOTIFY1

-- Set up digitize voltage function settings.

node[1].dmm.digitize.func = dmm.FUNC_DIGITIZE_VOLTAGE

node[1].dmm.digitize.samplerate = 5000