Modbus RTU RS-485
4
SFIDK.PS.023.D2.02
2. Technical data
Siemens Flow Instruments Modbus RTU specification
Device type Slave
Baud rates 1200, 2400, 4800, 9600, 19200, 38400, 57600,
76800, 115200 bits/sec.
Number of stations Recommended: max. 31 per segment without repeaters
Device address range 1-247
Protocol RTU
(Other Modbus protocols like ASCII, Plus or TCP/IP are not supported)
Electrical interface RS-485, 2 wire
Connecter type Screw terminals
Supported function codes 1 read coils
3 read holding registers
5 write single coil
16 write multiple registers
17 report slave ID
Broadcast No*)
Maximum cable length 1200 meters (@115200 bits/sec.)
Standard Modbus over serial line v1.0*)
Certified No
Device profile None
*) Standard restriction
The standard requires a LED indicator for visual diagnosis. This module do not support a LED indicator.
Instead comprehensive display information is available. This device does not react to any Broadcast
commands.
2. Technical data
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