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User manual 

ADA-401WA 

Addressable RS-485/RS-422 to 1-WIRE Converter

1

ADA-401WA

Copyright © 2001-2018 CEL-MAR sp.j.

io_ada-401wa_v3.20_en

Summary of Contents for ADA-401WA

Page 1: ...User manual ADA 401WA Addressable RS 485 RS 422 to 1 WIRE Converter 1 ADA 401WA Copyright 2001 2018 CEL MAR sp j io_ada 401wa_v3 20_en ...

Page 2: ... ISOLATION 5 3 INSTALLATION 5 3 1 ASSEMBLING 5 3 2 CONNECTION TO PC 5 3 3 CONNECTION TO RS485 422 BUS 6 3 3 1 LINE TERMINATION 7 3 4 CONNECTION TO 1 WIRE NETWORK 7 3 4 1 CONNECTION 1 WIRE SENSORS 7 3 4 2 LIMITATIONS OF 1 WIRE BUS 7 3 5 POWER SUPPLY 8 3 6 ACTIVATION 8 4 CONFIGURATION 8 4 1 OPERATION MODE 8 4 2 CONFIGURATION 8 4 3 DATA TRANSMISSION DIAGNOSTICS 9 4 4 FIRMWARE UPDATE 9 4 5 EMERGENCY F...

Page 3: ...ly after disconnecting the power supply circuit voltage Do not carry out the assembly or disassembly of the 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 C...

Page 4: ...tions through the RS 232 interface or USB in the computer of the class equipped with the PC into the appropriate software CEL MAR Company gives the materials to creating software on the basis of ADA 401WA converters ADA 401WA is equipped with screw terminal for twisted connection of 1 WIRE and RS 485 bus as well as for connecting the power supply Over voltage protection on each RS 485 line was mad...

Page 5: ...icroprocessor which make easy access to 1 WIRE from a serial RS 485 bus Communication with device connected to 1 WIRE is sending receiving the appropriate command via RS485 interface Additional description all commands and communication are described in technical documentation DS2480B driver available on manufacturer web page http www maxim ic com quick_view2 cfm qv_pk 2923 or CEL MAR Additional c...

Page 6: ...A 401WA VDD 1 W GND GND USB USB connector Screw connector RS485 RS422 RS485 4W 9600Bd 8 N 1 USB connector ADA I9140 USB Rx Rx Tx A Tx B Tx A Tx B Rx Rx Screw connector 1 WIRE Screw connector RS485 RS422 ADA 401WA PC VDD 1 W GND GND USB USB connector RS485 RS422 connector RS485 4W 9600Bd 8 N 1 USB connector ADA I9140 USB Rx Rx Tx A Tx B Tx A Tx B Rx Rx 1 WIRE connector RS485 RS422 connector ADA 401...

Page 7: ...r when building the bus remember that each sensor is a shortening of 0 5 meters and 100 meters of cable causes additional capacity load data line 5nF increasing signal distortion 1 WIRE bus length and number of sensors will be less and will depend on used cables topology connection quality implementation of connections interference from external electromagnetic fields RECOMMENDS application of twi...

Page 8: ...witch to configuration mode as in table below SW1 1 SW1 2 ON OFF In the configuration mode the yellow LED located by SW1 micro switch will blink with frequency 1 Hz Start the ADAConfig Software fig Below and make the configuration of transmission parameters for RS485 422 interfaces and set his visible address from RS485 bus Can be set also some of parameters the internal interface of converter for...

Page 9: ...o delete zeroing of counters in the memory of the converter press Delete transmission errors In case of parity errors or frame errors should be checked the ADA 401WA converter s configuration and correctness connection of RS485 and 1 WIRE bus to the converter ports After finishing the diagnostics the SW1 micro switch should be set to run modeby using SW1 switch yellow LED blink OFF as below SW1 1 ...

Page 10: ...to the converter If the software was loaded correctly yellow LED will be blink again with frequency 1 Hz After that set micro switch SW1 to run mode as shown in the table below SW1 1 SW1 2 OFF OFF The yellow LED will be OFF 4 5 EMERGENCY FIRMWARE UPDATE In case of the unsuccessful update of the converter software try again according to description in point FIRMWARE UPDATE If the update is still in...

Page 11: ... ADDRESS OF ADA 401WA CONVERTER address byte from the scope 1 255 FRAME OF DS2480B DRIVER 1 WIRE BUS bytes sequence contains DS2480B driver frame of 1 WIRE bus or additional orders for ADA 401WA This sequence can not be longer than 950 bytes ADA 401WA converter with fixed addressing constantly listens for frames on RS485 bus If received frame contains byte of address equal to converter address the...

Page 12: ...for ds18b20 sensors Maximum number of connected device 32 up to 100 ds18b20 sensors Maximum baud rate up to 230 4 kbit sek standard 0 do 16 3 kbps overdrive 0 do 142 kbps Transmission line Twisted cable 2 pair UTP Nx2x0 5 24AWG shield inside large interferences STP Nx2x0 5 24AWG Twisted cable 1 pair or 2 pair UTP Nx2x0 5 24AWG shield inside large interferences STP Nx2x0 5 24AWG Transmission type E...

Page 13: ...e 40 70 C Casing Dimensions 53mm x 90mm x 62 mm Material Noryl UL 94 V O Degree of casing protection IP40 Degree of terminal protection IP20 Weight 0 10 kg According to standard DIN EN50022 DIN EN43880 Location during work Free Mounting method On the rail compliant with DIN35 TS35 standard 13 ADA 401WA ...

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Page 16: ...ta 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 o...

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