Command Groups Of The Siwarex Wp251 - Siemens SIWAREX WP251 Manual

Command lists

10.3 Command groups of the SIWAREX WP251

1127 Manual emptying
OFF
1128 Rest emptying
1141 Continue weigh-
ing
10.3 Command groups of the SIWAREX WP251
The following commands can be triggered in the scale data block DB_SCALE in the area
CMD1 to CMD3:
Table 10- 7
Command code
1 ... 1999
2000 + X
4000 + X
7001
7002
Additional information on transmission of commands from the control program by means of
the SIMATIC interface is available in chapter Integration in SIMATIC S7-1200 (Page 185).
184
The command can be issued only in weighing step 0. The "Emptying
signal" bit is then set to FALSE and a linked digital output, if any, is reset.
The command is used to clean the scale or to close it manually after
service.
The command can only be accepted if an emptying option (emptying
based on Limit 3 or time) is configured in DR 25.
Within a weighing cycle, the command causes the coarse and fine signal
to be shut off immediately and the scale jumps directly to the emptying
step. A log is not created and a tolerance check is not performed.
If the command is issued outside the dosing cycle (in weighing step 0),
the emptying signal is set for the specified time – if time-based emptying
was configured in DR 25. If "Emptying based on Limit 3" is configured,
the emptying signal is switched until Limit 3 is fallen below.
If a dosing cycle is in the "stopped" state (for example, before creation of
a log in NAWI mode), the dosing cycle can be continued using this com-
mand.
Command groups of the SIWAREX WP251
Description
The meanings of the commands correspond to the command list (see → Command
lists (Page 179)).
Reading of a data record, X corresponds to the data record number.
Example: Transfer data record 3 from the SIWAREX module to the SIMATIC CPU
→ 2000 + 3 = command code 2003
Writing of a data record, X corresponds to the data record number.
Example: Transfer data record 3 from the SIMATIC CPU to the SIWAREX module
→ 4000 + 3 = command code 4003
Read all data - Read all data from the SIWAREX to the CPU
Write all data - Write all data from the CPU to the SIWAREX (service mode has to
be turned on)
SIWAREX WP251
Manual, 12/2015, A5E37203357A