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3.4.2.4.1 MODBUS
Server address
Device address
Data format and
protocols
Only available in variant Ego 2 (T) slim C.
Connector type
Data protocol
Bus wire
configuration
Communication
transceiver
Maximum cable
length
Line termination
Supported
transmission speeds
Start bits, data bits
Visual diagnostics
Maximum number of
devices
Isolation
Modbus over Ethernet
192.168.0.245:502
245
•
Modbus TCP
•
Modbus RTU over TCP
•
Modbus UDP
•
Modbus RTU over UDP
Screwless terminals
-
Modbus RTU
-
BACnet MS/TP
Two-wire + common
Integrated, 1/8 of
standard load
1200 m
Not present
Up to 38400 baud
1, 8
LED2
256
Common ground
(COM) with SET1, SET2
and SET3.
IP address is the same as for pump web
server, port is fixed as 502
Default value, can be changed over Modbus
Protocol is automatically selected according
to established connection and received
request.
RS-485
2+1 pins. See section 3.1 Terminals
Only one at a time.
Selectable over Web interface (tab "Network")
Conductors: A, B and COM (Common).
See section 3.1 Terminals
Connect either via passive taps or daisy chain.
See section 6.6 Termination
Line termination is not integrated. For low
speed/short distance, termination can be
omitted. Otherwise, terminate the line externally
on both ends.
See data for protocol used.
Fixed.
Flashing yellow when data reception detected.
Combined (OR) with Ethernet ACT function.
1/8 nominal load enables 256 devices, protocol
limit might be lower.
Bus shares common ground with other signals.
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