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Van Essen Diver-MOD-AS339 Product Manual Download Page 20

© July 2017 Van Essen Instruments. All rights reserved

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5

 

Appendix A – Specifications 

5.1

 

Casing 

Dimensions (L × W × H) 

65 mm × 50 mm × 35 mm  

Weight  

~82 g 

Material 

ABS 

Protection classification 

IP65 

5.2

 

Connections 

Diver Cable 

M12 connector (connect to AS2xxx cable) 
Length: 0.5 to 500 meter 

Modbus 

Cable Gland PG-7 

Compatible Diver models 

Mini-Diver (DI5xx), Micro-Diver (DI6xx), Cera-Diver 

(DI7xx), CTD-Diver (DI27x), TD-Diver (DI8xx) 

5.3

 

Power Consumption 

External supply voltage 

5 to 12 V 

Standby current 

2 mA 

Maximum current 

10 mA 

5.4

 

Modbus 

Communication 

RS485 half-duplex, single pair, 300 bps to 115,200 bps 

Multi-drop 

yes, max 8 devices per communication link 

Address 

user programmable: 1 to 247 

Modbus features: 

Real-time Diver conductivity (CTD-Diver only) pressure 
and temperature reading.  
Read Diver memory 
Read/write Diver sample interval 
Read/write monitoring point name of Diver  
Start/stop Diver (no future start) 
Read memory status: total memory and memory used 

Summary of Contents for Diver-MOD-AS339

Page 1: ...PRODUCT MANUAL Diver MOD AS339 M 11118002E Nijverheidsstraat 30 6987 EM Giesbeek The Netherlands T 31 313 880 200 E info eijkelkamp com I www eijkelkamp com...

Page 2: ...nts B V be liable for any claim for direct incidental or consequential damages arising out of or in connection with the sale manufacture delivery or use of any product Van Essen Instruments and the Va...

Page 3: ...by EN61326 1 2013 The product s to which this declaration relates is in conformity with the essential protection requirements of 2004 108 EC Electromagnetic Compatibility directive The products are in...

Page 4: ...2 Get Diver Data 8 3 8 Reg 00003 Update General Diver Information 8 3 9 Reg 00004 Force to accept new connected Diver 8 3 10 Reg 00011 Start Stop Logging of Diver 9 3 11 Reg 30241 Number of Records Re...

Page 5: ...July 2017 Van Essen Instruments All rights reserved 8 3 Baro Diver 24 8 4 Cera Diver 24 8 5 Micro Diver 25 8 6 CTD Diver 25 8 7 Mini Diver 26 8 8 Baro Diver 26...

Page 6: ...Modbus interface through a 4 conductor cable This cable is used for power supply and data transfer The air vent ensures that the pressure inside the casing is equal to the outside air pressure The bui...

Page 7: ...e address 0 to 247 Messages sent to the address 0 will be accepted by all Diver MODs The Diver MOD acts as a slave for the PLC PC that requests the data from each Diver MOD Up to 8 Diver MODs can be u...

Page 8: ...0 mA and the effective current is 20 mA The stand by current of the Diver MOD is 2 mA If the Diver MOD is the last device in the RS485 network the A and B line should be terminated with a 120 terminat...

Page 9: ...nication PDU A master addresses a slave by placing the slave address in the address field of the message When the slave returns its response it places its own address in the response address field to...

Page 10: ...mands to Diver commands and vice versa There is no direct communication between the Modbus supervisory computer and the Diver The Diver MOD acts as a buffer between the supervisory computer and the Di...

Page 11: ...for long 2 Read real time values barometric sensor float 0x04 30231 2 Register 30231 convert to single float two registers for single float 3 3 Reg 40001 Change Slave Address of Diver MOD Register 40...

Page 12: ...iver MOD to get real time values i e pressure temperature and conductivity if applicable from the connected Diver The updated real time values must be read from registers 30201 30216 The type of condu...

Page 13: ...up the Diver MOD Example Description Function code Register Size registers Data field Remark 1 Instruct Diver MOD to update general information from connected Diver 0x05 00002 1 0xFF00 Register 00003...

Page 14: ...recorded by the Diver First set register 00001 to update this register in the Diver MOD with the most recent value Example Description Function code Register Size registers Data field Remark 1 Update...

Page 15: ...ch parameter channel measured by the Diver the Diver serial number the monitoring point name location etc The following data is required to obtain the time series data in engineering units Start Date...

Page 16: ...the Diver can measure temperature For all the supported Divers this is 100 C The temperature range can be read from register 30105 The returned value is a signed 16 bit integer for example 100 Conduct...

Page 17: ...ation to convert these values to engineering units PENG PENG PDEC 30000 range reference If the pressure must be converted to a different unit then refer to Appendix C for conversion factors Temperatur...

Page 18: ...t the general header information 2 Read channel 1 header information 0x04 30329 24 Read 24 registers starting at register 30329 to get the channel 1 header information 3 Read channel 2 header informat...

Page 19: ...e Register Size registers Data field Remark 7 Read 2 000 Diver data records 0x04 32001 8 000 Read from register 32001 in increments of 100 registers Stop reading if one or more registers contain 0xFFF...

Page 20: ...DI7xx CTD Diver DI27x TD Diver DI8xx 5 3 Power Consumption External supply voltage 5 to 12 V Standby current 2 mA Maximum current 10 mA 5 4 Modbus Communication RS485 half duplex single pair 300 bps...

Page 21: ...5 Pressure Range 400 to 1100 cmH2O Accuracy 2 0 cmH2O Resolution 0 06 cmH2O 5 6 Temperature Range 20 to 80 C Calibrated 0 to 50 C Accuracy 1 C Resolution 0 2 C maximum 5 7 Environmental Storage Transp...

Page 22: ...o accept new connected Diver UINT16 Write 00011 1 Start stop Diver immediate starting and stopping UINT16 Write 6 2 Read Only Registers For the Read input registers 16 bit registers Modbus Register Nu...

Page 23: ...real time pressure 10 SINT32 Read 30223 30224 2 Baro real time temperature 100 SINT32 Read 30231 30232 2 Baro real time pressure FLOAT Read 30233 30234 2 Baro real time temperature FLOAT Read 30241 3...

Page 24: ...nel 1 16 bytes STRING Read 30371 30380 10 Diver header Identification channel 2 20 bytes STRING Read 30381 30388 8 Diver header Reference channel 2 16 bytes STRING Read 30389 30396 8 Diver header Rang...

Page 25: ...as integer valid values 1 247 UINT16 Read write 40002 1 Modbus baudrate settings as integer valid values 0 300 1 1200 2 2400 3 4800 4 9600 5 19200 6 38400 7 57600 8 115200 bps UINT16 Read write 40003...

Page 26: ...hts reserved 21 Registers Number of Modbus Registers Description Format Properties 40109 40118 10 Set Location Code Diver 20 ASCII characters STRING Read write 40119 40128 10 Set Instrument number Div...

Page 27: ...s reserved 22 7 Appendix C Pressure Conversion Table To convert from cmH2O to Multiply by hecto Pascal hPa 0 980665 kilo Pascal kPa 0 0980665 millibar mbar 0 980665 inch of mercury inHg 0 028959020848...

Page 28: ...gths from 1 meter to 500 meter Part no AS2xxx xxx length in meter e g 10 meter cable is AS2010 8 2 TD Diver This Diver is manufactured using a stainless steel 316 L casing with a 22 mm diameter The TD...

Page 29: ...shallow water levels up to 1 meter The Baro Diver samples pressure and temperature at fixed length intervals and stores these values in fixed length or continuous memory Part no DI800 8 4 Cera Diver...

Page 30: ...and 100 m Part no DI6xx 8 6 CTD Diver Where there is a need to monitor groundwater levels and salt water intrusion injected wastewater or contamination from chemical discharges and landfill sites the...

Page 31: ...available in the following pressure ranges 10 m 20 m 50 m and 100 m Part no DI5xx 8 8 Baro Diver This Diver measures atmospheric pressure and is used to compensate for the variations in atmospheric pr...

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