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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.