PT113
Instruction Manual
38
9.1.2.1 Modbus RTU Command Table
Address
R/W
Word
Command
Definition
40001
R
2
Weight/Force/Count
(Net if the indication is in Net)
40003
R
1
Status
D0
0 – System Ready
1 – System Busy
D1
0 – Error (D13-D15)
1 – Data ok
D2
0 – Weight Stable
1 – Weight unstable
D3
0 – Gross Mode
1 – Net mode
D4
0
Not used
D5
0 – Weight / Force
1 – Count Mode
D6 – D11
Not used
D12
0 – Out of centre of zero
1 – Weight is in centre of zero
D13
D14
D15
Error Code
Dec
Description
0
No Errors
1
ADC out of range
2
ADC over range
3
ADC under range
4
System error
5
In programming mode
6
Low/High voltage det.
40004
R
2
Tare weight
40006
R
2
Gross weight
40008
R
1
Status
Motion, Net mode, Data ok, (image of register 40003)
40009
R/W
1
Control
Dec.
Description
0
None
1
Zero
2
Tare
3
Clear
40010
R/W
1
Calibration
Dec.
Description
0
None
188
Adjust Zero Calibration
220
Adjust Span Calibration
( 1 )
40011
R/W
2
Span Calibration Load Value
40013
R
1
Calibration
Status
D0 .. D7
Calibration
Process
Status
Dec
Description
1
Ready for calibration
3
Zero calibration in progress …
4
Span calibration in progress …
9
Error (Refer to D8 ... D15 )
D8 .. D15
Calibration
Errors
1
Calibration Timeout
- Restart calibration
2
ADC Error
- Re-energise the instrument
- If seen again, change the board.
3
Instrument can not be calibrated
- Check load cell cable
- Re-energise the instrument
34
Instrument can not be calibrated
- Load cell signal is too low or too high
35
Calibration Error
- Calibration loading is not enough
- Check calibration weight loading
- Increase calibration load (entered at 40011)
- Check load cell connections
37
Scale unstable
- Wait until scale becomes stable
- Check grounding wiring
40014
R/W
1
Operating
Mode
Select
Value
Description
0
Count Mode Unipolar
1
Count Mode Bipolar
2
Force Mode Unipolar
3
Force Mode Bipolar
4
Weight Mode Unipolar
40015
R/W
1
Count
Mode
Input
Range
( 2)
0
5mV (1mV/V)
1
10mV (2mV/V
2
15mV (3mV/V)
3
18mV (3.6mV/V)
40016
R/W
1
Digital
Filter
0
Fastest
1
