Chapter 1. General description.
L-Card data acquisition system
L-502
based on the
PCI Express
interface of modern
computer motherboards.
L-502 –
this system of the proprietary development of the "L-Card" LLC,
it is made on the basis of high-tech production of the company, it provides its own technical support
and maintenance.
The most important characteristics of L-502:
•
ADC: 16 bits, conversion frequency up to 2 MHz, with switching to 16 differential channels or 32
channels with common ground. Subranges: ±10 V”, “±5 V”, “±2 V”, “±1 V”, ±0.5 V, ±0.2 V.
•
DAC (optional): 16 bits, 2 channels, output ± 5 V, asynchronous or synchronous mode with a
conversion frequency of up to 1 MHz for each channel.
•
Digital input: up to 18 digital inputs of general purpose, asynchronous or synchronous data
collection mode with a frequency of up to 2 million words per second.
•
Digital output: up to 16 digital outputs of general purpose, with separate control of the output
resolution of the high and low byte, asynchronous or synchronous data output mode with a
frequency of up to 1 million words per second.
•
Processor Blackfin 530 MHz, 32 MB RAM, JTAG input (optional) allows you to use the ready
"advanced" signal processing and control functions inside the
L-502
or independently engage in
low-level programming of these functions.
•
Galvanic isolation (optional) provides isolation of digital and analog signal inputs/ outputs to all
circuits of the computer.
The above "optional" is reflected in the
L-502
The system can consist of one or more modules (boards)
L-502
, synchronized from each
other, from an internal or external synchronization source.
L - 5 0 2 - - - -
Модификация
преобразователя
P
Процессор Blackfin 500 МГц, ОЗУ
32 МБ и разъём JTAG присутствуют
X
Отсутствуют процессор Blackfin,
ОЗУ и разъём JTAG
G
X
Гальваноразвязка
присутствует
D
ЦАП (2 канала)
присутствует
ЦАП
отсутствует
Гальваноразвязка
отсутствует
Преобразователи напряж ения
измерительны е
I
+5…+55
°
С
-40…+60
°
С
С лакировкой
Нет
индекса
Нет
индекса D
Fig. 1-1. Symbol system for L-502 module
Measuring voltage converters
Converter
modification
No index
No D index
With polish
There is a DAC
(2 channels)
No DAC
There is a galvanic
isolation
No galvanic isolation
There are Blackfin processor 500 MHz, 32
MB RAM and JTAG connector
There is no Blackfin RAM processor and
JTAG connector
