Section 6: Instrument programming
Models 707B and 708B Switching Matrix Reference Manual
6-50
707B-901-01 Rev. A / August 2010
TSP-Link network group functions
Group number
Group members
Current function
0 Master
node
•
Initiates and runs a test script on
Node 2
•
Initiates and runs a test script on
Node 5
•
Initiates and runs a test script on
Node 6
Group leader
Node 2
•
Runs the test script initiated by the
master node
•
Initiates remote operations on Node
3
1
Node 3
•
Performs remote operations initiated
by Node 2
Group leader
Node 5
•
Runs the test script initiated by the
master node
•
Initiates remote operations on Node
4
2
Node 4
•
Performs remote operations initiated
by Node 5
3
Group leader
Node 6
•
Runs the test script initiated by the
master node
TSP-Link has three synchronization lines that function similarly to the digital I/O synchronization lines.
See
digio functions and attributes
(on page 3-12) for more
detailed information.
Using groups to manage nodes on TSP-Link network
The primary purpose of a group is to assign each node to run different test scripts at the same time
(in parallel). Each node must belong to a group; a group can consist of one or more members. Group
numbers are not assigned automatically; you must use the Instrument Control Library (ICL)
commands to assign each node to a group.
Master node overview
The master node is always the node that coordinates activity on the TSP-Link network. All nodes
assigned to group 0 belong to the same group as the master node.
The following list describes the functionality of the master node:
•
The only node that can send the
execute
command on a remote node
•
Cannot initiate remote operations on any node in a remote group if any node in that remote group
is performing an overlapped operation
•
Sends the
waitcomplete
command to wait for the local group that the master node belongs to,
to wait for a remote group, or to wait for all nodes on the TSP-Link network to complete
overlapped operations
