G4 Multi Channel Weighing Instrument
6-39
Fieldbus and EtherNet/IP Data Definitions
Data from the network (Outputs in the master)
General
This 16 bytes block is mandatory, i.e. it is always mapped to the network in the
instrument.
Byte
Contents
00
Command
01
Number of registers to write
02
Start address, Read/Write
MSB
03
Start address, Read/Write
04
Write register 1
MSB
05
Write register 1
06
Write register 2
MSB
07
Write register 2
08
Write register 3
MSB
09
Write register 3
10
Write register 4
MSB
11
Write register 4
12
Write register 5
MSB
13
Write register 5
14
Write register 6
MSB
15
Write register 6
Byte 0:
The command byte is used when setting the read window starting address, writing data
to the instrument and to issue various scale related commands such as taring, zeroing
etc.
Commands:
0
No action
250 (hex FA)
Change read window
251 (hex FB)
Write data
252 (hex FC)
Clear the Program reset bit in the Instrument Status register.
Plus commands according to the manual, chapter ‘Communication – Modbus protocol
– Command register’.
Note that a new command is detected when the content of the command register is
changed. If the same command is used more than once another command e.g. 0 must
be used in between.
The response to a given command is the ‘Command acknowledge’ and the
‘Command error’ bytes that are described below in section ‘Data to the fieldbus’.
Summary of Contents for G4
Page 2: ......
Page 18: ...Technical Manual 1 14 ...
Page 39: ...G4 Multi Channel Weighing Instrument 3 7 ...
Page 104: ...Technical Manual 5 18 ...
Page 158: ...Technical Manual 6 54 ...
Page 178: ...Technical Manual 7 20 ...
Page 186: ...Technical Manual 8 8 ...
Page 196: ......
Page 197: ...G4 Multi Channel Weighing Instrument Appendix 1 ...
Page 198: ...Technical Manual ...
Page 199: ......