4.1. SETTING OF OPERATING MODE
All available operating modes are shows in table below.
If there are any additional questions, please contact with technical support: suppor@cel-mar.pl or on the phone: +48 41 362-12-46.
Table 1. RS422 or RS485 operating mode.
SW1-1 SW1-2 SW1-3 SW1-4 SW1-5 SW1-6
Description
Operating mode
OFF
OFF
OFF
OFF
OFF
OFF
RS-422 bus
4-wire RS422 network.
Full duplex or half duplex
transmission.
ON
ON
ON
ON
ON
ON
RS-485 bus,
automatic data flow control
2-wire and 4-wire RS485 network.
Full duplex or half duplex
transmission.
4.2. DEFAULT SETTING
The ADA-4021 converter is being set in RS485 mode during production as in the table below.
Table 2.
SW1-1 SW1-2 SW1-3 SW1-4 SW1-5
SW1-6
ON
ON
ON
ON
ON
ON
5. ACTIVATION
Converter can be powered after proper connection according to steps above.
If connection was made properly green LED PWR on front panel of converter should light, if not check polarization of power
connection. If the red LED RX is light check correctness of connection transmitting line of Current Loop Device. The lighting of RX
LED indicates no current flow through the optocoupler in the receiver's circuit.
During proper data transmission through converter the LEDs Tx and Rx should blink.
5.1. LEDS DESCRIPTION
LED
Description
PWR
Signalization of Power Supply
RX
Signalization of data receiving by ADA-4021 from Current Loop.
TX
Signalization of data transmission from ADA-4021 converter through Current Loop
6. VERSIONS
ADA-4021 -
-
-
-
Order example:
Product symbol:
ADA-4021-1-2-1-2
1 –
standard electronics version,
2 –
current loop voltage12VDC,
1 –
current loop current 0-20mA,
2 –
galvanic isolation1kV=,
Electronics version:
Standard
1
Current Loop Voltage:
24VDC
1
12VDC (standard)
2
Current Loop Current:
0 – 20 mA (standard)
1
0 – 30 mA
2
0 – 45 mA
3
Galvanic isolation:
1kV= 3-way
2
3kV= 3-way
3
9
ADA-4021
Summary of Contents for ADA-4021
Page 11: ...11 ADA 4021...
