Description
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Delay of the Ethernet signals by the TAP
The delay of the Ethernet signals through the Test Access Point (TAP) in
an Ethernet path is:
Ports
TAP Delay [ns]
0 → 1
< 1
1 → 0
< 1
3 → 4
< 1
4 → 3
< 1
Table 8: TAP Delay
Data recording
In the "Interactive operating mode", the NANL-B500G-RE analyzer device
stores the data on the hard disk of the PC. Using the PC software and its
export function, the data can be transferred to the open
format
(
*.pcap
), which can be analyzed with
a live recording directly from Wireshark is also possible via the WinPcap
driver on the product DVD.
Figure 3: Typical analyzer application with the capturing of the Ethernet data transfer and IO
events
Digital inputs
In addition, events from up to four digital inputs can be recorded. At the four
digital inputs, the input signals generate a special pseudo Ethernet frame in
the NANL-B500G-RE analyzer device. This frame is generated by the
analyzer device and evaluated accordingly by the analysis software.
Note:
events a pseudo Ethernet frame is generated (MAC
Address 00:02: A2: FF: FF: FF, Ether Type = 0x88ff). This is not a
true Ethernet frame, but is inserted as wildcard in the firmware. This
frame is then decoded by Wireshark or netANALYZER Scope as a
GPIO event.
netANALYZER device NANL-B500G-RE | Installation, operation and hardware description
DOC091110UM26EN | Revision 26 | English | 2019-07 | Released | Public
© Hilscher 2007-2019
