R&S RTO6, User Manual

Page: 697 / 2677

Protocol analysis
R&S
®
RTO6
697 User Manual 1801.6687.02 ─ 05
Check min gap ← Error Condition
Checks and sets a value for the intermessage gap between the last bit of a message
and the following command word sync. The time is measured between the mid bit zero
crossings. According to the standard, the minimum idle time is 4
μ
s.
The minimum gap time is relevant for protocol configuration and error trigger.
If "Check min gap" is enabled, the instrument detects the specified gap during decod-
ing. If the trigger type "Error condition" is selected in addition, the instrument triggers
when the gap is shorter then specified.
Remote command:
BUS<m>:MILStd:MINGap:BITS
on page 1958
BUS<m>:MILStd:MINGap:SELect
on page 1958
TRIGger<m>:MILStd:MINGap:BITS
on page 1968
TRIGger<m>:MILStd:MINGap:SELect
on page 1968
Check max response ← Error Condition
Checks and sets a value for the maximum response time between the last bit of a word
and the following status word sync. The time is measured between the mid bit zero
crossings. According to the standard, the RT shall respond to a valid command word
within the time period of 4 to 12
μ
s.
The max response time is relevant for protocol configuration and error trigger.
If "Check max response" is enabled, the instrument detects the specified gap during
decoding. If the trigger type "Error condition" is selected in addition, the instrument trig-
gers when the response time is longer than specified.
Remote command:
BUS<m>:MILStd:MAXResponse:BITS
on page 1957
BUS<m>:MILStd:MAXResponse:SELect
on page 1958
TRIGger<m>:MILStd:MAXResponse:BITS
on page 1967
TRIGger<m>:MILStd:MAXResponse:SELect
on page 1967
13.12.3.2 Triggering on MIL-STD-1553
Prerequisites: A bus is configured for the MIL-STD-1553 signal to be analyzed.
1. Press the [Bus] key and selet the "Shortcuts" tab.
2. Press "Setup trigger".
3. Tap the "Source" button and select the "Serial bus" trigger source.
4. Select the serial bus that is set to MIL-STD-1553.
5. Select the "Trigger type".
6. For more complex trigger types, enter the data pattern conditions.
For details, see Chapter 13.12.3.1, "Trigger settings MIL-STD-1553" , on page 691.
MIL-1553 (option R&S RTO6-K530)