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MI003790 

 
 

MI002636 

SENECA s.r.l. 

Via Austria, 26 

– 35127 –PADOVA – ITALY 

Tel. +39.049.8705355 

– 8705359 Fax. +39.049.8706287 

Web site: 

www.seneca.it   

Technical assistance: 

[email protected]

 (IT)

[email protected]

 

(Other)

 

Commercial reference: 

[email protected]

 (IT)

[email protected]

 

(Other)

 

 

This document is property of SENECA srl. Duplication and reproduction are forbidden, if not authorized. Contents of the present 
documentation refers to products and technologies described in it. All technical data contained in the document may be modified 
without prior notice Content of this documentation is subject to periodical revision. 

To use the product safely and effectively, read carefully the following instructions before use. The product must be used only for the 
use for which it was designed and built. Any other use must be considered with full responsibility of the user. The installation, 
implementation and set-up is allowed only for authorized operators; these ones must be people physically and intellectually suitable. 
Set up must be performed only after a correct installation and the user must perform every operation described in the installation 
manual carefully. Seneca is not considered liable of failure, breakdown, accident caused for ignorance or failure to apply the indicated 
requirements. Seneca is not considered liable of any unauthorized changes. Seneca reserves the right to modify the device, for any 
commercial or construction requirements, without the obligation to promptly update the reference manuals. 

No liability for the contents of this documents can be accepted. Use the concepts, examples and other content at your own risk. There 
may be errors and inaccuracies in this document, that may of course be damaging to your system. Proceed with caution, and although 
this is highly unlikely, the author(s) do not take any responsibility for that. Technical features subject to change without notice. 

 

USER MANUAL 

Z-SG / Z-SG-L 

Advanced Digital 

Strain gauge converter  

 

Summary of Contents for Z-SG

Page 1: ...ementation and set up is allowed only for authorized operators these ones must be people physically and intellectually suitable Set up must be performed only after a correct installation and the user...

Page 2: ...USER MANUAL Z SG 2 Date Revision Notes 15 04 2016 4 New revision 28 09 2016 5 Correct example at chapter 11 2 21 10 2019 6 Edited chapter Calibration with a standard weight Fix Analog Input Features...

Page 3: ...URE CALIBRATION WITH MODBUS REGISTERS 12 10 1 CALIBRATION WITH EASY SETUP 12 10 2 CALIBRATION WITH A STANDARD WEIGHT 13 10 3 CALIBRATION WITHOUT A STANDARD WEIGHT 13 11 MEASURE CALIBRATION WITHOUT MOD...

Page 4: ...NTAL DAMAGE DUE TO NEGLECT OR RECKLESS MISHANDLING OF Z SG Z SG L EVEN THOUGH SENECA IS WELL AWARE OF THESE POSSIBLE DAMAGES SENECA ITS SUBSIDIARIES AFFILIATES COMPANIES OF THE GROUP ITS SUPPLIERS AND...

Page 5: ...1mV V to 64mV V or virtually every sensitivity Measure resolution configurable RS232 and RS485 port with Modbus RTU protocol Configurable Moving average filtering Digital input for Tare acquisition on...

Page 6: ...if each cell has input impedance 350 up to 8 load cells if each cell has input impedance 1000 Cell sensitivity Configurable between 1mV V 2mV V 4mV V 8mV V 16mV V 32mV V 64mV V by Dip Switches From 1...

Page 7: ...power supply is recommended to install a fuse 4 LEDs for signalling In the front side panel there are 4 LEDs and their state refers to important operating conditions of the module LED LED status Mean...

Page 8: ...or 4 wires Input Screw terminal Meaning Excitation 7 Load cell power Sense 8 Reading of load cell power Signal 9 Load cell output signal Signal 12 Load cell output signal Sense 11 Reading of load cel...

Page 9: ...measure The Analog Output 0 and 100 can be fully configurable 7 STABLE WEIGHT CONDITION Z SG Z SG L module allows to detect when a weight measure is stable weight stability information is available t...

Page 10: ...for acquire a general purpose input Digital output allows to open close a opto isolated contact In Z SG Z SG L model the digital output can be controlled by the firmware with this configurations gross...

Page 11: ...uired from memory EEPROM Address 1 Address 2 Address 3 Address 4 X X X X X X Address 63 DIGITAL INPUT OUTPUT Dip Switches SW2 1 Meaning Digital input Calibration button used during calibration procedu...

Page 12: ...G model Calibration with known weight using calibration button or digital input in Z SG model LOAD CELL SENSITIVITY Dip Switches SW2 6 7 8 Meaning 1 mV V 2 mV V 4 mV V 8mV V 16 mV V 32 mV V 64 mV V Th...

Page 13: ...witch Dip Switches SW2 6 to ON SW2 7 to ON SW2 8 to ON 6 Power ON the module 7 Write sensitivity value in reg 40044 40045 8 Write the Standard Weight value in reg 40048 40049 9 Reset the module write...

Page 14: ...40068 11 MEASURE CALIBRATION WITHOUT MODBUS REGISTERS 11 1 CALIBRATION WITH A STANDARD WEIGHT USING THE CALIBRATION BUTTON WARNING Gross weight tare known weight must not to exceed load cell end scale...

Page 15: ...rnative use digital input signal until LED ERR is ON 13 Release the calibration button 14 Control that the LED ERR is flashing 15 Put the known weight on the tare 16 Keep pushed the calibration button...

Page 16: ...load cell 8 Keep pushed the calibration button or in alternative only for Z SG model use digital input until LED ERR is ON The Z SG Z SG L module has acquired tare value this value is saved in EEPROM...

Page 17: ...s 1 All registers are Holding register Read Modbus function 3 with the convention that the first register is the 40001 address offset 0 The following Modbus functions are supported Read Single Modbus...

Page 18: ...t MSB Most significant Byte LSB Less significant Byte MSW Most significant Word 16 bits LSW Less significant Word 16 bits R Read only register RW Read and write register Unsigned 16 bit Unsigned 16 bi...

Page 19: ...dRate Delay Bit 15 8 RS485 Baudrate 0 4800 1 9600 2 19200 3 38400 4 57600 5 115200 6 1200 7 2400 Bit 7 0 RS485 Delay number of the pauses between the end of Rx message and the start of Tx message from...

Page 20: ...Flash 100 ms 40058 57 Resolution Out NO NC Switch Condition Bit 15 Full Resolution 1 Full resolution 0 Resolution from Bit 14 8 Bit 14 8 Resolution Must be stored the Resolution Value 1000 example fo...

Page 21: ...oss Value Analogic to digital converter raw value Gross weight unsigned 16 bit R RAM 0 40062 61 Integer RAW Net Weight If bipolar the value is from 31000 full traction to 31000 full compression If uni...

Page 22: ...s weight is less than load cell end scale 1 gross weight is greater than load cell end scale Bit 0 0 net weight is less than Threshold reg 40054 40055 or weight measure is not stable 1 net weight is g...

Page 23: ...ON Bit 3 Switch5 of SW2 state 0 OFF 1 ON Bit 2 Switch6 of SW2 state 0 OFF 1 ON Bit 1 Switch7 of SW2 state 0 OFF 1 ON Bit 0 Switch8 of SW2 state 0 OFF 1 ON Command Write 43948 for RESET Write 49594 fo...

Page 24: ...USER MANUAL Z SG 24 High values MAX 100 Better Worst Low values MIN 1 Worst Better...

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