Modbus Rtu - Lenze i55AE125B Manual

4.4.2

Modbus RTU

Typical topologies
A1
120
X216
TA TB COM
Terminal description
Connection
Connection type
Min. cable cross-section
Min. cable cross-section
Max. cable cross-section
Max. cable cross-section
Stripping length
Stripping length
Tightening torque
Tightening torque
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
R c
OFF n.c.
Inactive
ON
Active
Bold print = default setting
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.
A2
120
X216
TA TB COM
mm²
AWG
mm²
AWG
mm
inch
Nm
lb-in
R c b a 128 64 32 16 8
Mode
Baud rate
b
OFF
Automatic detection
ON
Value from parameter
Line
A3
120
X216
TA TB COM
Modbus RTU
X216
pluggable spring terminal
0.5
22
2.5
12
10
0.39
-
-
0.4 x 2.5
4 2 1
O
N
Address
Parity
a 128 64
OFF OFF OFF OFF OFF OFF OFF OFF OFF
Automatic detection
ON Node address - example:
Value from parameter OFF OFF OFF ON OFF ON ON ON
Node address = 16 + 4 + 2 + 1 = 23
Node address > 247: value from parameter
Electrical installation
Networks
Modbus RTU
An
120
X216
TA TB COM
Modbus node address
32 16 8 4 2
Value from parameter
1
65