Siemens SIRIUS 3RW5 Equipment Manual page 177

A.2.20 Modbus RTU communication parameters
Read access (r) to the communication parameters is possible via Function Codes 03 and 04.
Write access (w) is possible for individual communication parameters via Function Codes 06
and 16.
Register Byte Data format
Address high /
low
0xA202 high Unsigned32
[41474]
0xA204 high Unsigned16
[41476]
0xA206 high Unsigned8
[41478]
low Unsigned8
SIRIUS 3RW5 Modbus communication module
Equipment Manual, 03/2020, A5E43676481002A/RS-AC/003
Parameter Range of values
[encoding]
Access monitoring [5 000 ... 10 000]
time
[5 000] 5 s
[10 000] 10 s
Silent interval time Increment: 0.1 ms
Baud rate: 1.2 kbit/s 32 ... 6 553.5 ms
[320 ... 65 535]
Baud rate: 2.4 kbit/s 16 ... 6 553.5 ms
[160 ... 65 535]
Baud rate: 4.8 kbit/s 8 ... 6 553.5 ms
[80 ... 65 535]
Baud rate: 9.6 kbit/s 4 ... 6 553.5 ms
[40 ... 65 535]
Baud rate: 19.2 kbit/s 2 ... 6 553.5 ms
[20 ... 65 535]
Baud rate: 38.4 kbit/s 1 ... 6 553.5 ms
[10 ... 65 535]
Baud rate: 57.6 kbit/s 0.7 ... 6 553.5 ms
[7 ... 65 535]
Baud rate: 76.8 kbit/s 0.5 ... 6 553.5 ms
[5 ... 65 535]
Baud rate: 115.2 kbit/s 0.3 ... 6 553.5 ms
[3 ... 65 535]
Automatic [0]
Baud rate [0 ... 12]
[0] Automatic
[1] 115.2 kbit/s
[4] 76.8 kbit/s
[6] 57.6 kbit/s
[7] 38.4 kbit/s
[8] 19.2 kbit/s
[9] 9.6 kbit/s
[10] 4.8 kbit/s
[11] 2.4 kbit/s
[12] 1.2 kbit/s
Port configuration [0 ... 4]
[0] Automatic
[1] 1 start, 8 data, 1 stop bit, even parity
[2] 1 start, 8 data, 1 stop bit, odd parity
[3] 1 start, 8 data, 2 stop bit, no parity
[4] 1 start, 8 data, 1 stop bit, no parity
1)
Appendix
A.2 Data tables
Default Access
5 000 r/w
0 r/w
1)
8 r/w
1 r/w
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