Document number: S46-901-01 Rev. F / March 2011
3-5
S46/S46T/S46L Microwave Switch System Instruction Manual
Section 3: Operation
Figure 3-9
Controlling relay connections
Command execution rules
•
Commands execute in the order presented in the program message.
•
An invalid command generates an error and is not executed.
•
Valid commands preceding an invalid command in a multiple command program message
are executed.
•
Valid commands following an invalid command in a multiple command program message
are ignored.
Response messages
A response message is the message sent by the instrument to the computer in response to a
query command program message.
Sending a response message
After sending a query command, the response message is placed in the output queue. When the
relay unit is then addressed to talk, the response message is sent from the output queue to the
computer.
Channel 2
2
3
4
5
6
1
RELAY A
Channel 8
2
3
4
5
6
1
RELAY B
