Reference Manual Rev 1.13 
 
004R-646-113  Page 139 
24.  Appendix 7: M4501 DSD Module 
24.1.  Overview 
The M4501  DSD  module provides  alibi  memory along  with custom  string support. 
The information in this appendix applies only to indicators fitted with this module. 
24.2.  Writing records 
A  record  will  be  stored  in  the  DSD  whenever  a  traceable  weight  is  generated,  A 
traceable  weight  is  only  generated  when  a  print  of  type  RECORD  or  DOCKET 
occurs, and only for TOTAL values of NONE or ADD. For more information on print 
setup see sections 12.7 PRINT (Printouts)on page 74 and 16 Printing on page 100. 
The DSD will also be written when a print occurs in alibi mode. 
If a custom string is set then it will be stored along with the traceable weight. The 
custom  string  accepts  all  print  tokens.  For  more  information  on  the  custom  string 
and auto clear settings see section 12.2.6 DSD.HW on page 62. 
24.3.  Reading records 
The  records  can  be  viewed  in  alibi  mode  or  read  through  the  communications 
interface. For more information on viewing  DSD records in alibi mode see section 
5.14  Alibi  on  page  34.  View400  can  be  used  to  retrieve  the  records  from  the 
instrument or you can manually send communications commands to the instrument. 
For a list  of  registers relating to reading DSD record via the comms interface see 
section 20 Appendix 3: Communications Registers on page 123.  
 
The reply to a DSD record read command will look like the following example: 
81108295:1,2009/08/04,11:12:24,    2000,kg,GROSS,       0,kg,TARE,    
4410,lb,13,p 
 
This response is comma separated and contains the following data: 
Response header: record ID, date, time, weight, units, gross/net, tare weight, tare 
units, tare/P.tare., alternate weight, alternate units, piece count, piece units, custom 
string 
 
If the custom string DSD.STR: \BA\D7,\C9 is set then the reply will be: 
81108295:2,2009/08/04,12:12:08,     950,kg,NET,      50,kg,P.TARE,    2095,lb, 6,p 
,FLOUR   ,AA MINES 
 
See section 19.3 Tokens on page 117 for information on the print tokens used in the 
above example.