6. VERSIONS
ADA-4020 -
-
-
-
-
Electronic versions:
Basic,
1
Special,
2
Current Loop Voltage:
24VDC
1
12VDC
2
Current Loop Type:
± 20mA (active transmitter, passive receiver)
1
0 – 20mA (active/passive transmitter, passive
receiver)
2
0 – 20mA Network/Slave (not produced anymore)
11
± 20mA Network/Master (not produced anymore)
12
Galvanic isolation:
1kV=, 3-way
2
3kV=, 3-way
3
Terminal & Terminal Cover:
Cover without inlets, screw terminal block
1
Cover with inlets, screw terminal block
2
Cover without inlets, plug-in screw terminal block
3
Order example:
Product Symbol:
ADA-4020-1-1-1-2-3
1
– basic version of electronic,
1
– Current Loop Voltage 24VDC,
1
– Current Loop Type ± 20mA,
2
– 1kV= galvanic isolation,
3
– cover without inlets, plug-in screw terminal block .
7. SPECIFICATION
TECHNICAL DATA
Transmission Parameters
Interface
RS-485/RS-422
Current Loop
Connector
Screw terminal, wire max. Ø 2,5mm
2
.
Screw terminal, wire max. Ø 2,5mm
2
.
Line length
up to 1200 m
Depend on baud rate, several kilometres
Maximum number of connected device
up to 32
1 / up to 15 (connection in Current Loop
network)
Transmission line
1-pair, 2-pair twisted cable eg UTP
4x2x0,5(24AWG), shield inside large
interferences eg STP 4x2x0,5(24AWG)
2-pair twisted cable eg UTP 4x2x0,5
(24AWG), shield inside large interferences
eg STP 4x2x0,5 (24AWG)
Standards
EIA-485, CCITT V.11
Current Loop 0-20mA +/-20mA
Maximum baud rate
38,4 kbps (depend on line length Current Loop) /19,2kbps (for Current Loop network)
Transmission type
Asynchronic half duplex or full duplex
Optical signalisation
•
PWR – green LED power supply,
•
RX - red LED data receiving from Current Loop side,
•
TX - yellow LED data transmission through Current Loop interface
11
ADA-4020
