Command
code
Command Description Service
701 Increased resolution Activate increased resolution on main display (x 10) x
705 Display current tare weight Display current tare weight on main display x
710 Activate standard display Activate standard display gross/net x
711 G/N display Display gross/net weight on main display x
712 N display
713 G display
714 N process value Display net process weight on main display x
715 B process value Display gross process weight on main display x
871 Show serial number The serial number of the module is displayed
875 Display FW version Show firmware version in current display x
1000 … Basic functions for weighing commands
1001 Set to zero Set to zero x
1011 Tare Tare x
1012 Delete tare Delete current tare weight x
1013 Tare specification valid Activate specification of tare weight x
1016 S7 tare specification valid Activate specification of S7 tare weight
The following commands can be triggered in the scale data block SCALE_DB in the area CMD1
to CMD3:
Table 10-1 Command groups of the SIWAREX WP321
Command group Description
1 ... 99 Commands are forwarded from the FB_SIWA via data record DR 2 to the module
(scale commands, weighing commands, log commands). The meaning of the com‐
mands corresponds to the command list.
2000 + X Reading of a data record, X corresponds to the data record number.
Example: Data record 3 transmitted by SIWAREX module to the SIMATIC CPU →
2000 + 3 = command code 2003
4000 + X Writing of a data record, X corresponds to the data record number.
Example: Data record 3 transmitted by SIMATIC CPU to the SIWAREX module →
4000 + 3 = command code 4003
7001 Read all data records from SIWAREX into CPU (only for SIMATIC FB)
7002 Write all data records 3, 4, 5, 6, 10, 13, 14 and 15 from CPU into SIWAREX (module
must be in service mode, only for SIMATIC FB)
Additional information on transmission of commands from the control program by means of the
SIMATIC interface is available in chapter Communication in SIMATIC S7-300/400/1200/1500
(Page 103).
Command lists
SIWAREX WP321
102 Operating Instructions, 08/2019, A5E33715669A-AD
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