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14 

SMC-520 User Guide revision 1.3        SMC Ship Motion Control                www.shipmotion.eu           

 

 

3

 

CONFIGURATION COMMANDS 

If the SMC configuration software is preferred not to be used the following commands can be used to 
setup the instrument instead using the serial command prompt over both RS232 and RS485 

All commands lines should be followed by a [CR] [LF] 

Commands format

 

Description 

$upiset,1 

Sensor output rate in seconds 

where “1” is

 0.25s to 600s 

$btrset,9600 

The bitrate of the output. Accepted output rates are 
4800, 9600, 19200, 38400, 57600 bps 

$parset,n 

Sets the parity of the serial output where  
n = none   
o = odd  
e = even 

$avgset,0 

Sets the average time of the temperature and humidity 
output. Can be set to 0 to 600s as integer values 

$prtset,2 

Output string format where  
2 = WIXDR string format 
3 = Vaisala HMP155 format 

$un1set,1 

Sets the unit for the temperature output  
1 = Celsius 
2 = Kelvin 
3 = Fahrenheit 

$cldget 

To receive the sensor factory calibration date 

$op1set,1.00 

Sets the offset for the temperature sensor  

$op2set,1.00 

Sets the offset for the humidity sensor 

$xdrset,SMC 

Sets the name of the transducer in the WIXDR string 

 

 

 

3.1

 

REPLIES FROM THE SMC-520 

The sensor will reply with a confirmation when the command is accepted in the format as 

$upians,1

 

where the three first letters are identical to the command and the three last letters in the identifier 

are replaced with “ans”.

 

In case the command is not accepted the sensor will reply with 

$ans cmd error

. In case of a problem 

to store the information to the built-in flash memory of the sensor the device will reply with 

$ans 

mem err

. If a parameter is set outside the available range the sensor will return the message 

$ans 

range err

 

 

Summary of Contents for SMC-520

Page 1: ...1 SMC 520 User Guide revision 1 3 SMC Ship Motion Control www shipmotion eu SMC 520 TEMPERATURE HUMIDITY SENSOR USER GUIDE...

Page 2: ...re versions Please check with SMC for details of model specific features such as measurement parameters and Protocol support This document is property of SMC and shall not be reproduced in any form wi...

Page 3: ...TION SHIELD 7 1 5 ELECTRICAL COMMUNICATION 9 1 6 SMC INSTRUMENTS CONFIGURATION SOFTWARE 10 1 6 1 DEFAULT SETTINGS AT THE FACTORY 10 1 6 2 GENERAL INFORMATION CONFIGURATION SOFTWARE 11 2 SERIAL OUTPUT...

Page 4: ...readings also in sunny environments The SMC 520 uses a PT1000 element for the temperature measurements 1 1 RECEIVING THE TEMPERATURE AND HUMIDITY SENSOR Unpack the equipment and remove all the packagi...

Page 5: ...5 SMC 520 User Guide revision 1 3 SMC Ship Motion Control www shipmotion eu 1 2 SMC 520 DIMENSIONS All dimensions are in mm...

Page 6: ...Stevenson screen It is not recommended to mount the sensor outside unshielded SMC 560 Solar Radiation Shield 1 3 1 INSTALLATION LOCATION RECOMMENDATIONS Install the SMC 520 Temperature and Humidity se...

Page 7: ...ed on a pole of 30 to 60mm diameter After the shield has been attached to the pole the Temperature and Humidity sensor is to be fitted into the shield until the wider part of the sensor reach the comp...

Page 8: ...8 SMC 520 User Guide revision 1 3 SMC Ship Motion Control www shipmotion eu...

Page 9: ...round 5 Gray VDC 6 Pink RS485 Data default 38400 8N1 7 Blue RS485 Data 8 Red VDC Power input 12 30 VDC Note Please pay special attention to the SMC 520 wire colours as applying voltage to the data wir...

Page 10: ...nication parameters according to requirements The settings entered in the SMC Configuration software are written to the sensor The settings are stored in flash memory inside the sensor and are not dep...

Page 11: ...or The software will search all the COM ports of the PC to find output data from a sensor useful for a PC with multiple COM ports from multiport serial cards COM Port settings The COM port to which th...

Page 12: ...ing on both serial outputs to Odd Even or None Output Interval The automatic string output rate can be set between 0 25 and 600 seconds Average calculation time Sets the temperature and humidity calcu...

Page 13: ...0 0 Humidity in percent resolution 0 1 Unit P Unit for humidity P Percent Name of transducer SMC Default SMC user configurable Checksum 7B XOR checksum Termination Characters CR LF 2 1 2 VAISALA HMP15...

Page 14: ...tring format where 2 WIXDR string format 3 Vaisala HMP155 format un1set 1 Sets the unit for the temperature output 1 Celsius 2 Kelvin 3 Fahrenheit cldget To receive the sensor factory calibration date...

Page 15: ...n a regular interval 5 SERVICE AND WARRANTY All products are inspected prior to shipment and SMC manufactured products are guaranteed against defective material or workmanship for a period of two 2 ca...

Page 16: ...be liable for any indirect or consequential or punitive damages or cost of any kind from any cause arising out of the sale use or inability to use any product including without limitation loss of pro...

Page 17: ...ence any problem or you have a question regarding your sensor please contact your local agents or SMC directly Refer to the SMC website at https www shipmotion eu Please have the following information...

Page 18: ...0 25 per year typical Communication Com1 RS232 Com2 RS485 SMC Configuration software included User selectable Output Protocols Physical Housing Material UV resistant ABS plastic Dimensions H x W 245 x...

Page 19: ...n the sensor are not changing check if the sensor Serial number Hardware number Firmware version and Calibration date are displayed in the configuration software If not press the Read Settings button...

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