Communication; A.3.6 Communication - Siemens SITRANS FC410 Operating Instructions Manual

Modbus holding registers
A.3 Modbus holding registers tables
A.3.6

Communication

Table A- 13 Modbus
Modbus Data type /
address Size [bytes]
527 Unsigned /
2
528 Unsigned /
2
529 Unsigned /
2
132
Parameter Description
Float byte order The float byte order used in
Modbus messages.
Selection 0: Byte order:
1-0-3-2
Selection 1: Byte order:
0-1-2-3
Selection 2: Byte order:
2-3-0-1
Selection 3: Byte order:
3-2-1-0
The first mentioned byte is
the first byte sent.
Byte 3 corresponds to the
left-most byte (MSB) of a 32
bit float in big endian format;
byte 0 corresponds to the
right-most byte (LSB).
Modbus Address Set Modbus Device
Address
Baudrate Set communication
baudrate.
Following baud rates are
available:
•
•
•
•
•
•
0 = 9 600
1 = 19 200 (Default)
2 = 38 400
3 = 57 600
4 = 76 800
5 = 115 200
Operating Instructions, 02/2016, A5E33120874-AC
Default value Value range Access
[unit]
3 0 to 3
1 1 to 247
1 0 to 5
FC410 with Modbus
level
Read /
Write
Read /
Write
Read /
Write