Lenze i550 Serie Montage- Und Einschaltanleitung Seite 86

Electrical installation
Networks
Modbus RTU
Modbus RTU
The network must be terminated with a 120 Ω resistor at the physically first and last node.
Set the "R" switch to ON at these nodes.
Typical topologies
A1 A2
120
X216 X216
TA TB COM
Terminal description
Connection
Connection type
Max. cable cross-section mm²
Max. cable cross-section AWG
Stripping length mm
Stripping length inch
Tightening torque Nm
Tightening torque lb-in
Required tool
Basic network settings
Use the DIP switch to set the node address and baud rate and to activate the integrated bus terminating
resistor.
Bus termination Baud rate
R c
OFF n.c. OFF
Inactive Automatic detection
ON ON
Active Value from parameter
Bold print = default setting
86
Line
A3
120
X216
TA TB COM TA
pluggable double spring terminal
R c b a 128 64 32 16 8
Mode Address
Parity
b a
OFF
Automatic detection
ON
Value from parameter
An
120 120
X216
TB COM TA
Modbus RTU
X216
2.5
12
10
0.39
-
-
0.4 x 2.5
4 2 1
O
N
Modbus node address
128 64 32 16 8
OFF OFF OFF OFF OFF OFF OFF OFF
Value from parameter
Node address - example:
OFF OFF OFF ON OFF ON
Node address = 16 + 4 + 2 + 1 = 23
Node address > 247: value from parameter
TB COM
4 2 1
ON ON