Siemens SIWAREX FTA - Dr 30 P Rocess Values 1 (Nawi, Awi)

Weighing Functions
SIWAREX FTA
5-111
5.19 DR 30 Process values 1 (NAWI, AWI)
The current states and data in the scale can be monitored using process values
1 and 2.
Observing the selected data is very helpful in test operation for optimising
parameters. In addition, if the SIWAREX FTA is controlled by the SIMATIC CPU
then the status can also be observed.
Name
Type
Address
Range of Values / Explanation
Reference
NAWI status bits
DWORD
DBD000
32 status displays for NAWI
AWI status bits
DWORD
DBD004
32 status displays for AWI
Gross process value
REAL
DBD008
Current gross weight (Process value)
Net process value
REAL
DBD012
Current net weight (Process value)
Tare process value
REAL
DBD016
Current tare weight (Process value)
G/N weight
REAL
DBD020
Current weight (numeral step from DR3)
G/N weight_x10
REAL
DBD024
Current weight (numeral step from DR3)
Tare
REAL
DBD028
Current tare weight (numeral step from DR3)
Last net weight
REAL
DBD032
Net weight of the last monitored weighing
procedure (numeral step from DR3)
Pulse counter value
DWORD
DBD036
Current pulse counter value
Distribution memory 1
REAL
DOUBLE
DBD040
Current distribution memory 1 value. Format in
STEP7 cannot be read (numeral step from DR3)
Distribution memory 2
REAL
DBD048
Current distribution memory 2 value (numeral
step from DR3)
52
Table 5-18 DR 30 Allocation
5.19.1 DR 30 - NAWI-Status bits
Bit No.
Name
Range of Values / Explanation
Reference
0
WR1
Weight within weighing range 1
1
WR2
Weight within weighing range 2
2
WR3
Weight within weighing range 3
3
Limit 1
Limit value 1 activated
4
Limit 2
Limit value 2 activated
5
Limit 3
Limit value 3 activated
6
Tared (NET)
Set if the scale is tared
7
Preset Tare
Set if the scale was tared with tare input
8
Max+9e
Set if maximum load is exceeded by 9 e
9
¼d-Zero
Set if the weight does not exceed ¼ d
10
Waiting for stand-still
Set if the scale waits for a stand-still after the weighing start.
11
Standstill 1
Stand-still 1 exists
12
Scale adjusted
Set if the scale is adjusted (calibrated)
13
Error on DI
Set if a command could not be executed on a digital input
14
Simulation active
Set if the weight simulation has been activated
15
Service operation active
Set if service operation has been activated
16
Printing log
The log is being printed.