Universal data recorder
RSD is a simple and modern electronic device used for recording any data coming from the RS 232 serial port. A correct recording of the frame in the device memory will be signalled by a flashing diode or setting the digital output for the time stipulated during configuration. Recorded data can be downloaded on the USB key, while the results may be displayed by means of a software, included into the recorder package.
The software allows to retrieve data from transmission frames saved in the memory (e.g. one frame of saved transmission contains 32 bytes. Equally essential data consumes only a few bytes of memory).
Features of the RSD recorder
- Recording of all data incoming to the RS232 port
- Recording of data frames upon activation of the digital input in RSD
- Recording of data frames within defined time intervals
- Possibility to send frames (requests) to the RS232 port within defined time intervals or upon activation of the digital input
- A special mode to monitor a number of vehicles passing through the weighbridge
- Possibility to control external diode or a digital output
Working mode characteristics
1. RECORDING OF ANY AND ALL DATA INCOMING TO THE RS232 PORT
Possible applications
- recording of data from a scale meter upon pressing a PRINT key on the meter
- recording of cyclic data sent by the scale meter (e.g. once a minute) – the mode can be used for recording overtime changes in the mass.
2. DIGITAL INPUT ACTIVATION FOLLOWED BY RECORDING OF ONE FRAME
In the following mode, although the data flows regularly into the RS232 port, it will not be saved until the digital input activation takes place in the RSD. After setting the digital input in the high state, the RSD recorder will record the first received frame which shall meet the requirements set during configuration (e.g. requirements related to the length of the frame, to points marking the frame endings, etc.). It will then enter the standby mode to wait for another digital input activation.
Possible applications:
- a scale meter, connected to an external LED display, the RSD device connected to the RS232 transmission line (GND and Tx only). Recording of one frame takes place after pressing of an external button.
3. SENDING ENQUIRIES VIA THE RSD DEVICE
In this mode, the RSD is able to send a frame, defined during settings, within a determined time interval.
4. MONITORING VEHICLES PASSING OVER THE WEIGHBRIDGE
In this mode, the RSD records a fact of some mass appearing on the weighbridge, if the mass value is higher than the threshold value defined during the configuration (e.g. 400 kg). The recorder records the maximum stable value of the mass, or the maximum unstable value of the mass, should there appear no stable value between entering and leaving the weighbridge. The recorder can also adjust a relay to a determined time period, should there appear any mass being greater than the threshold mass.
Software
The computer software is delivered along with the recorder. The software allows to configure the recorder, read, export and display recorded data. It includes a graphics editor, by means of which the user can define the location of data in question on the incoming transmission frame. Owing to that, retrieving information, being a smaller part of a whole recorded transmission, can be easy.
By means of the RSD software, the user can:
- Analyse data gathered in the memory of the RSD device
- Read recorded data (upon their prior saving on the USB key)
- Retrieve data from transmission frames recorded in the RSD memory
- Configure the device effectively
- Export data to the csv, txt formats
To ensure proper operation of the software, it is required to have a PC computer with the Microsoft Windows 2000 operating system or its upgraded equivalent and one free USB port.
Technical specification
| CATEGORY | PARAMETER |
|---|---|
| USB | |
| Accordance | USB 1.0/1.1 |
| Compatibility | USB 2.0, 3.0 |
| Connector | USB, type A – port |
| File format | FAT 32 |
| Digital inputs / outputs | |
| Number of digital inputs | 1 |
| Type of digital input | Voltage free |
| Number of digital outputs | 2 |
| COMMUNICATION INTERFACE TO THE DEVICE | |
| Interface type | RS-232 (only line RX, TX, GND )Possibility of RX line operation in TTL mode |
| Connection type | Screw terminal connector |
| Transmission rate | 1200 bps to 115200 bps |
| Stop bit | 1,2 |
| COMMUNICATION INTERFACE TO PC (download of saved data) | |
| Interface type | RS-232 (only line RX, TX, GND) |
| Interface type (*option) | Ethernet |
| CHARACTERISTICS | |
| Power supply | 12~24 VDC (max 300mA) |
| Memory capacity | 16 GB |
| The minimum time between recorded frames | 50 ms |
| Weight | 40 g |
| Dimension (in housing) | 86x57x26 mm |
| Housing material | Anodized aluminum |
| IP rate | IP 40 |
| Working temperature | From - 20 to 50 C |
RSD dimensions
ORDERING INFORMATION
The set contains the RSD device with utility software
| TYPE OF DEVICE | ORDER CODE |
|---|---|
| RSD (RS-232) | HDW-RSD |
| RSD (RS-232 + Ethernet) | HDW-RSD-ETH |
| Housing | HDW-RSD-BOX |