Operation
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35
Possible Command To Send To The Command Register
To execute the same command twice consecutively, send command 0 between the first command and the following
one.
Real Calibration Commands (With Sample Weight)
The SCT20-PB calibration can be changed via PROFIBUS.
To correctly set the sample weight, the value of the division module must be taken into consideration.
Example: to set the value to 100kg and the division value is 0.001, set the register value to 100000 (remove the
decimal points from the value that would be 100.000 with decimals).
To perform the edit calibration procedure:
1. Using the command 100
Zero-Setting for calibration
of the command register, unload the system and ensure the
display reads zero.
2. Place a sample weight on the scale.
3. Record the correct known weight value in the
Sample Weight for Calibration
register.
4. Send the command 101
Sample weight storage for calibration
.
5. To verify the correct execution of the calibration command:
• Write the sample weight value to the
Sample Weight for Calibration
module.
• Write the value 0 to the
Sample Weight for calibration
module.
• Send the command 101
Sample weight storage for calibration
to the Command Register
• The operation works correctly if the module value
Sample Weight for calibration
goes to zero.
See
for a list of PROFIBUS commands.
Changing some instrument parameters via keyboard can take the PROFIBUS network out of the data exchange
status and put the PLC in stop status; when programming the instrument the plant must be in stand-by status
Code
Description
Code
Description
0
No command
17
Reserved
7
NET display
18
Reserved
8
SEMI-AUTOMATIC ZERO
21
Keypad lock
10
Reserved
22
Keypad and display unlock
11
Reserved
23
Keypad and display lock
12
Reserved
99
Save data in EEPROM
13
Reserved
100
Zero-setting for calibration
14
Reserved
101
Sample weight storage for calibration
15
Reserved
9999
Reset (reserved)
16
Reserved
Table 3-15. Commands to Command Register (PROFIBUS)
Note
Note