Siemens

SINAMICS G120

Also applies to: G120C, G120D, G120P, G120X

60 minutesAdvancedPROFINET

What You Need

Cat6 Ethernet cableIncluded in kit

Flowstate CL260 edge nodeIncluded in kit

USB-to-RS485 adapter (Modbus RTU fallback only)

Customer provides:

1
Locate PROFINET port
The G120 Control Unit (CU) has an RJ45 PROFINET port on the front. G120C models have a built-in 2-port switch.
2
Connect Ethernet
Cat6 from the CU PROFINET port to the Flowstate edge node.
3
Set IP address
Use Siemens STARTER or BOP-2 panel: P0918 (IP byte 1), P0919 (byte 2), P0920 (byte 3), P0921 (byte 4).
For Modbus RTU fallback: connect RS-485 (terminals 14/15 on CU) to a USB-to-RS485 adapter on the edge node.

1
Enable PROFINET
Set P2030 = 1 (PROFINET mode). Set device name via STARTER or DCP discovery.
2
Configure process data
Standard telegram 1 provides speed setpoint/actual, current, status word. Set P0922 for telegram type.

1
DCP discovery
Run a PROFINET DCP scan from the edge node. The G120 should appear with its configured device name.
2
Verify data
Flowstate dashboard shows frequency, current, motor temperature, and fault codes.

Output frequency (Hz)

Output current (A)

Motor temperature (C)

DC bus voltage (V)

Drive status (run/stop/fault)

Fault code

Power consumption (kW)

Runtime hours

Don't have PROFINET access?

The universal CT clamp works on any machine — 15 minutes, zero configuration.

Calculate what downtime is costing you, then get started.