Modbus Communication - Siemens SITRANS F Series Operating Instructions Manual

A.4

Modbus communication

Table A-1 General Modbus settings
Modbus Data type /
register Size in
bytes
8291 Unsigned /
2
8005 Unsigned /
2
8297 Unsigned /
2
8298 Unsigned /
2
8299 Unsigned /
2
SITRANS FST090
Operating Instructions, 11/2021, A5E50387341-AA
Parameter Description
Restart com‐ Restarts the communication using
munication configured slave address, baud rate
and parity/framing.
Slave address DIP switch setting on the transmitter
(HW) cassette. Address is used if DIP switch
is set to a value > 0.
Slave address Software address of Modbus inter‐
(SW) face. Address is used if switch is set to
0.
Baud rate Baud rate of Modbus interface.
Parity and fram‐ Parity and framing of the Modbus
ing communication interface.
Modbus communication
A.4 Modbus communication
Default Value range /
value Setting options
[units]
(units
register)
- • 0: Cancel
• 1: Restart
- -
1 1 - 147
19200 Bit/s •
0: 9600 Bit/s
• 1: 19200
Bit/s
• 2: 115200
Bit/s
• 3: Reserved
• 4: 38400
Bit/s
• 5: 57600
Bit/s
• 6: 76800
Bit/s
• 7: 1200 Bit/s
• 8: 2400 Bit/s
• 9: 4800 Bit/s
Even pari‐
• 0: Even pari‐
ty, 1 stop
ty, 1 stop
• 1: Odd pari‐
ty, 1 stop
• 2: No parity,
2 stops
• 3: No parity,
1 stop
Access
level
Write only
Read only
Read /
write
Read /
write
Read /
write
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