LE-3500XR(V2)

It can be used as a high-performance communication protocol analyzer that can be expanded for RS-232C, RS-422/485, and TTL communication analysis and for testing in-vehicle communication standards such as CAN FD and CXPI, and as an analog logger that is frequently used in development.
You can use it as an analog logger by turning on the power while holding down the [SHIFT] key and the [1] key, and to return to the communication protocol analyzer function, simply turn on the power while holding down the [SHIFT] key and the [0] key.

The capacitive touch panel offers intuitive touch selection and swipe operations like a smartphone. it supports key switch operation for when wearing gloves. The key operation similar to the conventional model is inherited as the shortcut key operation

Swipe to scroll monitored communciation data up/down/left/right

Efficient text input by using the full keyboard displayed on the screen

Shortcut keys example

[MENU] and [0] Configuration display
[MENU] and [2] Trigger display
[MENU] and [4] Waveform monitor setting
[MENU] and [9] Data table selection display
[MENU] and [F] Program edit display of the PROGRAM mode

Key operation is useful for some functions

In the MANUAL simulation mode, in which communication test data is assigned to the keys and the communication response of the device under test is checked on the screen while the test data is sent by key operation, the key operations is useful as the monitor display screen can be widely used.

This external trigger input/output terminal can be used for 1.8V/2.5V/3.3V/5V signal level UART communication, I2C, SPI measurement and measurement linked with an external measuring instrument.

*1: 2.54mm pitch, HIF3FC-10PA-2.54DS(71) Hirose Electric equivalent
*2: Output during simulation, but SS and SCK are input during SPI slave
*3: Output the specified voltage of TTL port during simulation (maximum 30mA)

<A 5-wire TTL prove is attached>

It can be used for connection of TTL communication signals and external trigger signals.
If you use both at the same time, please purchase extra.

The RS-232C measurement port adopts the DSUB25 pin where the transmission/reception synchronization clock signal is arranged. As the produt includes a DSUB 25-pin monitor cable, DSUB 25-pin to 9-pin conversion adapter, and DSUB 9-pin monitor cable, it can be connected to both DSUB 25-pin and DSUB 9-pin of a RS-232C device.

<Line monitor image>

It can monitor asynchronous communciation in which one data consists of a start bit, data bits (5 to 8 bits), parity bit (none, odd number, even, mark, space, or multiprocessor bit definition MP), and stop bit (1, 2 bits).
The MSB first transfer of the legacy protocol can be selected, and the suppress (removal) of the flag character is supported by the ASYNC-PPP protocol.

BSC communication synchronized with the SYNC character and HDLC/SDLC synchronized with the flag bit can be measured. It supports BCC/FCS (block check code/frame check sequence) judgment and HDLC address filters. NRZ, NRZI, FM0, FM1 data modulation formats can be selected.

You can easily monitor I²C and SPI communication used in sensor modules, AD conversion ICs, memory ICs, etc. Also, transmission/reception tests can be performed on the master side or slave side.

Statistics of the number of transmitted/received data, the number of frames, and the number of times the trigger condition is satisfied are displayed in a graph in units of 1 to 240 minutes. You can see the communication traffic (line usage rate) and error occurrence tendency for each time zone.

By using the auto save function, you can save communication data to SDHC card or USB memory continuously for a long time. As the data is saved in multiple log files of the specified size (#nnnnnnn.DT: n is a sequential number in the order of saving), you can narrow down the communication logs of before and after the failure from the time stamp of the file in the time zone when the communication failure occurred.

In the conventional model, if the power is turned off while recording the communication log file, the file may be damaged and communication data cannot be analyzed. With this model, even if the internal battery is exhausted after a bus power failure, the communication status up to that point can be safely saved in a file.

Besides the Restart mode - the communication log files are recorded up to the specified number of files, the communication log file with the smallest file number is deleted and the communication data is endlessly recorded in a new communication log file - and the Append mode - measurement starts from the continuation of the existing communication log file -, the MAX stop mode - automatically stops the measurement after recording the specified number of communication log files - has been added.

<Auto Save setting screen>

The analyzer has 6-mode simulation function in which it performs transmission and reception tests as a communication partner of the device under test.

■ MANUAL mode

You can send the test data registered in the transmission data table of [0] to [F] of 10 groups by pressing the [0] to [F] keys. In this mode, you can easily test the communication procedure by key operation while on the monitor screen checking the response from the target device in development.

■FLOW mode

In this mode, flow control procedures such as X-on/off or RTS-CTS of asynchronous communication are simulated on the transmitting side or the receiving side. You can check whether the device under test is operating correctly in response to the transmission interruption request.

■ECHO mode

In this mode, the received data is returned inside the unit and returned. It can be used for a communication test with a terminal in echo back mode and as a BERT loopback point.

■POLLING mode

In this mode, the analyzer operates for simulation as a slave side or a master side in the multi-drop (1:N connection) polling communication procedure. You can test the procedure including error checking process without writing a program.

■BUFFER mode

In this mode, you can select the send side or receive side from the send/receive data captured in the capture memory using the line monitor function and send the data as is. It can be used for a reproduction test of communication data captured on site.

■PROGRAM mode

In this mode, you can flexibly simulate a communication protocol with condition judgment by creating a program of dedicated commands.

[ PROGRAM mode commands ]

By using the included PC link software LE-PC300R (light), you can utilize the measurement data on your PC.
>> PC link software "LE-PC300R"

■ Offline data display/text conversion

By connecting an SDHC card or USB memory (in which measurement data files are saved) to a PC, you can open and display multiple data files on the PC at the same time or convert the file to .text / .CSV file. Of course, you can also analyze the data file sent by email from another department.

>> Text conversion example
>> CSV conversion example

■ Records measurement data on PC via remote connection

By connect the analyzer to a PC with USB or Wi-Fi, you can remotely control the communication analyzer from the PC or remotely monitor the measured data of the communication analyzer. When connecting via Wi-Fi, you can select the station mode (when connecting via an external Wi-Fi access point) or the access point mode (when connecting directly to tthe analyzer which acts as a W-Fi access point).

The latest firmware with new features and improvements will be posted on our website. If you download it to your computer, you can easily update it to the latest version via a USB cable.

Trigger function that can specify up to 4 sets of conditions such as transmission and reception of specific data and measurement action after the condition is satisfied. It is very useful for investigating an intermittent failures often found in communication systems. As you can spcify the meet of a trigger condition as the other trigger condition, you can analyze the complex event involving sequence-like condition determination. Using the external trigger input/output, you can use the analyzer in combination with external device contacts and external measuring instruments such as oscilloscopes for various situations.

When the switch is turned on (external trigger input is L), the character string ABC is sent, and when the character string 123 is received as a response, the trigger signal (external trigger output 2) is supplied to the oscilloscope.
Trigger 0 and 1 are enabled, external trigger input 0 of line state is set for both factors, trigger 2 is enabled by trigger 0 action, and data transmission is set for trigger 1 action. Set the detection of the character string 123 to the trigger 2 factor and the OT2 pulse output to the trigger 2 action.
Set it to the simulation MANUAL mode and register the character string ABC in the send data table.

In addition to 100 MB of capture memory, it has a built-in battery-backed SRAM area. At the end of measurement, the latest measurement data of approximately 512 Kbytes is automatically backed up in this SRAM area and automatically loaded to the capture memory when the power is turned on. This allows you to use it as if you were using an old model in which the measured data did not disappear when the power was turned off.