USER MANUAL – Z-SG
5
1.
Glossary
Modbus RTU
An open protocol for the serial communications developed by Modicon Inc. (AEG Schneider Automation
International S.A.S.). Simple and robust, it has since become a de facto standard communication protocol.
http://www.modbus.org/specs.php
2.
General characteristics
ADC with 24bit resolution
4 wires or 6 wires load cell measure mode
Compression and Traction or only compression load mode
NR 1 analog output configurable in Current or Voltage mode (only Z-SG model)
Load cell sensitivity configurable from +-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 (only Z-SG model)
General purpose Digital input or Digital output (only Z-SG-L model)
Digital output with one configurable weight threshold or “stable measure” condition
Modbus Station address and baud-rate configurable by Dip-Switches
3.
Features
ANALOG INPUT
Number
1 (for one load cell: + Excitation, - Excitation, +Sense, - Sense, +
Signal, - Signal)
Resolution
24bits
Sampling frequency
Configurable between: 12.53Hz; 16.65Hz; 24.82Hz; 37.59Hz;
49.95Hz; 50.57Hz; 74.46Hz; 151.71Hz
Rejection
50Hz or 60Hz
ANALOG OUTPUT (only Z-SG model)
Number
1
Accuracy
0.1% of output scale range