Protocol Analysis
R&S
®
RTM20xx
186User Manual 1317.4726.02 ─ 01
Sample point
Sets the position of the sample point within the bit in percent of the nominal bit time. The
sample point divides the nominal bit period into two distinct time segments, which are
used for resynchronization of the clock.
The CAN bus interface uses an asynchronous transmission scheme. The standard
specifies a set of rules to resynchronize the local clock of a CAN node to the message.
Remote command:
BUS<b>:CAN:SAMPlepoint on page 406
Bit rate
Sets the number of transmitted bits per second. The maximum bit rate for High Speed
CAN is 1 Mbit/s. The bit rate is uniform and fixed for a given CAN bus.
To select a bit rate from the list of predefined values, set "Bit rate" to "Defined Bit Rate",
and then select the value with "Predefined".
To set another value, set "Bit rate" to "User Bit Rate", and then enter the value with
"User".
Remote command:
BUS<b>:CAN:BITRate on page 407
Find Level
The instrument analyzes all lines that are configured for the selected bus and sets the
threshold for digitization of analog signals for each channel. If no level can be found, the
existing value remains unchanged, and you can set the thresholds manually in the chan-
nel menu: CH N > "More" (page 2) > "Threshold".
See: "Threshold" on page 31
"Find Level" is not relevant for digital channels (MSO option R&S RTM-B1). Thresholds
for digital channels are set in the "Logic > Threshold" menu.
Remote command:
CHANnel<m>:THReshold:FINDlevel on page 379
11.5.2 CAN Trigger Settings
Access: SETUP (Trigger) > "Trigger type" = "Protocol (CAN)" > "Setup"
CAN (Option R&S RTM-K3)
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