Communications Manual Rev 3.10  Software Versions 3.xx 
Page 4 
003R-618-310
 
1.  Introduction 
This manual details the communications protocol (COMM) of the indicator. 
This  protocol  is  used  by  the  Viewer  program  to  calibrate  and  configure  the  instrument.  
The  Viewer  TEST  tab  can  be  used  as  a  convenient  terminal  to  test  the  instrument 
communications. 
The  indicator  is  fitted  with  opto-LINK  communications  as  standard.    This  allows  a 
temporary  isolated  communications  link  to  be  established  with  a  PC  permitting  the 
instrument  software  to  be  upgraded.    It  also  allows  the  use  of  computerised  setup  and 
calibration via the Viewer software.  The instrument also has an RS-232 port, which may 
be  used  for  printing,  connection  to  a  remote  display  or  control  using  COMM.    The 
instrument can utilise the protocol to fully control the indicator. 
 
Figure 1: Weight Indicator 
 
1.1.  Intended Audience 
 This manual is aimed at the designer or installer who is familiar with the operation 
and setup of the instrument. 
1.2.  Scope 
This manual lists the commands and registers for the protocol.  In practice, only a 
small subset of these commands would be used to control operational parameters.