Siemens SITRANS FC410, Руководство по эксплуатации, Страница: 94 / 160

Technical data
11.3 Modbus Communication Specification
FC410 with Modbus
92
Operating Instructions, 02/2016, A5E33120874-AC
11.3 Modbus Communication Specification
Table 11- 4 Modbus communication specification
Description Specification
Device type Slave
Baud rates
• 9600
•
19 200 (Factory setting)
• 38 400
•
57 600
• 76 800
•
115 200
Number of stations Max. 31 per segment without repeaters
Device address range 1 to 247
Protocol Modbus RTU
Electrical interface RS 485, 2-wire
Connector type M12 / Cable termination
Supported function codes
•
3: read holding registers
•
16: write multiple registers
•
8: diagnostics
Broadcast No
1)
Maximum cable length [m] 600 meters (@ 115 200 bits/sec)
Standard Modbus over serial line v 1.0
2)
Certification one
Device Profile None
1)
: Standard restriction. The standard requires a LED indicator for visual diagnosis. This
device does not support a LED indicator. Instead comprehensive display information is
available. This device does not react to any Broadcast commands.
2)
: According to the Specification & Implementation guide v. 1.0 available at the Modbus
Organization website
Note
Storage location
All Modbus settings of the device are stored in a non-volatile memory.