CEL-MAR ADA-4028LA User Manual Download

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Fig. 4. The 2-wire connection of ADA-4028L to PC by the use of USB to RS485/RS422 converter ADA-I9140/ADA-I9141

3.3. CONNECTION TO RS485/422 BUS

The RS485/RS422 interface at ADA-4028LA converter is available on terminal block described as: Tx+/A, Tx-/B, Rx+, Rx-.

Below are shown connection of ADA-4028LA converter to RS485(4W) bus and RS485(2W) bus.

3.3.1. CONNECTION TO RS485 (4-WIRE) BUS

Fig. 5. Example connection of ADA-4028LA to RS485(4W) 4-wire bus and galvanic separation of SLAVE device

ADA-4028LA

CLO+

CLO-

GND

USB

USB

connector

RS485 / RS422

connector

RS485(2W)

USB

connector

ADA-I9140

USB

Rx+

Rx-

Tx+/ A

Tx-/ B

Tx+ / A

Tx- / B

Rx+

Rx-

GND

RS485 / RS422

connector

ADA-4028LA

Current Loop

connector

(5) GND

GND

(2) Rx

(3) Tx

RS232

connector DB-

9F/DCE

Screw

connector

RS485 / RS422

RS485(4W) bus

9600Bd/8/O/1

RS232

connector

DB-9M/DTE

PC or

MASTER device

ADA-I1040

GND (5)

Tx (2)

Rx (3)

Rx+

Rx-

Tx+/ A

Tx-/ B

CLO

SLAVE
2400Bd/8/N/2

SLAVE
19200/Bd/7/N/2

SLAVE
9600Bd/8/E/1

CLO

Summary of Contents for ADA-4028LA

Page 2: ... 1 CONNECTION OF DEVICE WITH PASSIVE INTERFACE CLO 8 3 3 5 2 CONNECTION OF DEVICE WITH ACTIVE INTERFACE CLO 8 3 3 5 3 CONNECTION OF 4 DEVICES WITH THE PASSIVE CLO INTERFACE 9 3 4 POWER SUPPLY 9 4 ACTIVATION 9 4 1 SIGNALING LEDS 9 4 2 SENSITIVITY SETTING OF CURRENT LOOP CLO RECEIVER 9 5 CONFIGURATION 10 5 1 OPERATION MODE 10 5 2 CONFIGURATION BY THE USE OF ADACONFIG 10 5 2 1 CONFIGURATION OF ADDRES...

Page 3: ...he device if it is enabled This may result to short circuit and damage the device The device can not be used for applications that determine human life and health eg Medical 1 3 CE LABEL The CE symbol on the device CEL MAR means compatibility with electromagnetic compatibility Electromagnetic Compatibility Directive EMC 2014 30 WE Declaration of Conformity is available by contact with Technical Se...

Page 4: ...nergy meters like POZYTON LZQM ELSTER A1500 PAFAL and others with possibility of conversion the format and baud rate between connected devices to Current Loop CLO interface and RS485 422 bus The ADA 4028LA is equipped with screw terminal block for connection of RS485 422 Current Loop CLO and power supply Over voltage protection on each RS485 422 lines and Current Loop was made on the base over vol...

Page 5: ...ount of voltage drop use the powering cable with a suitable section because of the voltage drops use the interference eliminators for powering the converter lay signal cables at a distance of not less than 25 cm away from power cables not powering the converters form the power circuit of devices generate large impulse disturbance like contactors relays inverters 3 1 ASSEMBLING ADA 4028LA converter...

Page 6: ...US Fig 5 Example connection of ADA 4028LA to RS485 4W 4 wire bus and galvanic separation of SLAVE device 6 ADA 4028LA Rd CLO NC CLO GND USB USB connector RS485 RS422 connector RS485 2W USB connector PC ADA I9140 USB Rx Rx Tx A Tx B Tx A Tx B Rx Rx GND RS485 RS422 connector ADA 4028LA Current Loop connector 5 GND GND 2 Rx 3 Tx RS232 connector DB 9F DCE Screw connector RS485 RS422 RS485 4W bus 9600B...

Page 7: ...should be used if the distance is over 1000m 9600Bd or 700m 19200Bd transmission the resistor can be necessary if there are problems with the transmission correctness Example connection of Rt are shown on Fig 5 6 Resistor Rt 120 W 5 0 25W of a 2 pc is complete with the device ADA 4028LA 3 3 5 CONNECTION OF CURRENT LOOP DEVICES The connections of SLAVE devices with current loop CLO interface to ADA...

Page 8: ...ig 8 Example connection of device with active CLO interface to ADA 4028LA 8 ADA 4028LA CLO CLO Current Loop connector V V Power adapter Vss Vss CLO NC CLO GND Tx A Tx B Rx Rx RS485 connector ADA 4028LA ACTIVE Rd Device with passive CLO interface CLO CLO Device with active CLO interface Vss Vss CLO CLO R CLO GND Tx A Tx B Rx Rx Rd Power adapter ADA 4028LA PASSIVE Current Loop connector RS485 connec...

Page 9: ... Signalling of Power Supply Standard mode RX Signalling of data receiving through the ADA 4028LA converter from Current Loop CLO port TX Signalling of data transmitting from the ADA 4028LA converter through Current Loop CLO port Configuration mode LED by SW1 Blink with frequency 1 Hz signalling of configuration mode see micro switch SW1 setting Firmware update mode LED by SW1 Blinking signalling t...

Page 10: ...ad converter configuration and make the proper changes of interfaces setting 5 2 1 CONFIGURATION OF ADDRESSING MODE If the option Converter Address will be enabled on configuration window should be set a proper converter address from range 1 255 If this option is disabled the converter will operate as baud rate converter 5 2 2 CONFIGURATION OF BAUD RATE AND DATA FORMAT In both operating modes addr...

Page 11: ...Load New Firmware to change the software delivered by manufacturer The Select File window will open Fig 11 and select the bin file then click Open software will be load to ADAConfig buffer storage and will be checked If the ADAConfig not detect errors in loaded file change converter software Process of updating is visualized by ADAConfig in use Progress Window and after proper changing confirmed b...

Page 12: ...g should be restarted the ADA 4028LA by turning OFF and then ON the power supply The yellow LED will light continuously and the converter will be in Emergency Firmware Update mode Now follow the description in point FIRMWARE UPDATE After successful updating set SW1 micro switch as in table below Yellow LED will be OFF SW1 1 SW1 2 OFF OFF 5 5 FACTORY DEFAULT In case of faulty functioning of ADA 402...

Page 13: ...erter and data format converter and lets to connect no addressable devices with Current Loop CLO interface transmitting data at different rates and formats of data frame to the RS485 bus in the process of enabling the cooperation with addressable devices Example connection of ADA 4028LA is shown on fig 12 On RS485 bus the frame of protocol for no addressable devices connected to Current Loop CLO p...

Page 14: ...l ADA 4028LA 1 2 1 24VDC 0 20mA current loop active transmitter 2 1kV 3 way galvanic isolation Current Loop voltage 24VDC 0 20mA active transmitter of Current Loop 1 12VDC 0 20mA active transmitter of Current Loop 2 24VDC 0 30mA active transmitter of Current Loop 3 12VDC 0 30mA active transmitter of Current Loop 4 24VDC 0 20mA passive transmitter of Current Loop 1P 12VDC 0 20mA passive transmitter...

Page 15: ...op CLO Electrical Parameters Power requirements 10 24 30 V DC Power Cable Recommended length of power cable up to 3m Power 2W Protection from reverse power polarization YES Galvanic Isolation 1kV or 3kV DC between power circuit and RS485 422 signal line Optoisolation 3kV between signal line RS 485 422 and Current Loop Electromagnetic compatibility Resistance to disruptions according to the standar...

Page 16: ...ata transmission converters with interface RS232 RS485 RS422 USB Current Loop Fibre Optic Converters and Ethernet or Wi Fi Please contact us to tell how you like our products and how we can satisfy you present and future expectation CEL MAR sp j Zakład Informatyki i Elektroniki str Ściegiennego 219C 25 116 Kielce POLAND Tel 48 41 362 12 46 Tel fax 48 41 361 07 70 Web http www cel mar pl en Office ...

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