E 67, 2 modbus tcp data structure – Flintec FT-10xx User Manual
Page 68
FT-10 Smart Process Indicator, Technical Manual, Rev. 1.0, January 2014
11.2 Modbus TCP Data Structure
If the instrument is programmed for Modbus TCP/IP, it can be used as a Modbus TCP/IP slave on Ethernet
communication network. Functions code ‘0x03’ (Read Holding Registers) and ‘0x10’ (Preset Multiple Regs)
are supported.
Modbus TCP/IP High-Low: In two word registers, the data is stored to the registers in big-endian format.
Least significant word is stored to the highest register address; and most significant word is stored to the
lowest register address.
Modbus TCP/IP Low-High: In two word registers, the data is stored to the registers in little-endian format.
Least significant word is stored to the lowest register address; and most significant word is stored to the
highest register address.
Parameter set-up:
Set Ethernet Data Format
: Modbus
TCP/IP
High-Low
or Modbus
TCP/IP
Low-High
Ethernet Address
: 01 to 255
Make the Ethernet parameter settings.
Please find Modbus information in the web site of
Modbus TCP/IP Command Table;
Address
R/W
Word
Command
Definition
40001
R
2
Indicated weight
( 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
–
D11
Not used
D12
0
– Out of zero range 1 – Weight is in zero range
D13
D14
D15
Error Code
De
c
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
4
40010
R/W
20
Not used
40030
R/W
1
Calibratio
n
Dec
Description
0
None
188
Adjust Zero Calibration
220
Adjust Span Calibration
( 1 )
236
Total Load Cell Capacity
( 1 )
eCal
Coefficients
250
Average mV/V
( 1 )
171
Dead Load
( 1 )
23205
Save the coefficients of eCal