Каталог Weidmuller: Electronics - Analogue Signal Conditioning

Interface converter, AD/DA converter – Overview
Interface converter,
AD/DA converter
Isolating converter for serial interfaces and
AD-/DA converter
H
Isolating converter for serial interfaces RS232/RS485/422
or TTY
Serial interface are used for exchanging data between data
processing systems, controllers and peripherals. The WDS2
interface isolating converter is particularly well suited for harsh
surrounding located near the process. Versions are available
for a variety of industrial applications:
• RS-232/RS-422 or RS-485
• RS-232/TTY.
The thin (22.5 mm wide) rail-mounted modules come with a
9-pole SUB-D connector for the RS232 connection and a shield
connection for the RS485/422 or TTY signal line. In order to
ensure high transmission security, the serial interface isolating
converters are equipped with high-quality 4-kV 3-way electrical
isolation.
• Easy to service: the electronic components can be removed
from the housing/base without using any tools. Terminating
resistor can be selected with DIP switch.
• High data transmission speeds up to 115 kBit/s and freely
adjustable
• Secure connection: 9-pole Sub-D connector for the RS232
interface.
For the serial RS485/422 and TTY connection, you can
contact the shield using the LLBU or the EMC Set
(1067470000).
AD/DA converter
It may be necessary to convert analogue signals into digital
signals when you need the analogue signal from the
surroundings to work with the typical digital processing
requirements of process monitoring. A/D and D/A converters
can be used generally for converting standardised analogue
current/voltage signals into digital signals, or for converting
bit structures into their corresponding analogue signals.
RS U/I-D8 A/D converters digitise standardised analogue
current signals and have 8-bit accuracy. The RS D8-I /U D/A
converter converts digital data with 8-bit parallel structure into
analogue standard signals. All modules are equipped with a
hold-and-enable function, so that the momentary output value is
maintained even during a change to the input value.
You can find additional information describing the input/output
characteristics of the D/A and A/D converters on our web site at
www.weidmueller.de => downloads.
• All-purpose: 8-bit A/D and D/A converters for all typical
analogue standard signals.
• Persistent memory: integrated hold-and-enable function
• A secure connection: the proven screw connection method
H.2