Siemens Sinamics S120 Function Manual page 638

Communication
10.3 Communication via PROFINET IO
● For a description of the CBE20 and how you can use it in the drive, please refer to the
● The PROFINET interface on the CU310-2 PN unit is described in the reference:
Clock generation via PROFINET IO (isochronous communication)
The SINAMICS S120 with CU310-2 PN/CU320-2 DP/CU320-2 PN can only assume the role
of a synchronization slave within a PROFINET IO network.
For a CU310-2 PN/CU320-2 DP/CU320-2 PN with CBE20 module, the following applies:
● Transmission type IRT, IO device is synchronization slave and isochronous, send clock
● RT or IRT (option drive unit "not isochronous") has been configured. SINAMICS uses the
The following applies to a CU320-2 DP/CU320-2 PN for which a CBE20 is configured, but
does not exist:
● SINAMICS uses the local clock (clock configured in SINAMICS); if there is no data
Telegrams
PROFIdrive telegrams are available for implementing cyclic communication via PROFINET
IO (see section "Communication according to PROFIdrive", cyclic communication).
DCP flashing
This function is used to check the correct assignment to a module and its interfaces. This
function is supported by a CU310-2 PN and a CU320-2 DP/PN with inserted CBE20.
1. In HW Config or STEP7 Manager, select the menu item "Target system" > "Ethernet" >
2. The "Edit Ethernet node" dialog box opens.
3. Click on the "Browse" button.
4. The "Browse Network" dialog box opens and displays the connected nodes.
5. After the CU310-2 PN or the CU320-2 DP with plugged CBE20 has been selected as a
The DCP flashing will be effective on the RDY LED (READY LED 2 Hz, green/orange or
red/orange) on the CU310-2 PN/CU320-2 DP.
The LED will continue to flash as long as the dialog is open. When the dialog is closed, the
LED will go out automatically. The function is available as of STEP7 V5.3 SP1 via Ethernet.
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following reference: SINAMICS S120 Equipment Manual Control Units.
SINAMICS S120 Manual for AC Drives.
cycle is applied to bus: Control Unit synchronizes with the bus and the send clock cycle
becomes the cycle for the Control Unit.
local clock cycle configured in SINAMICS.
exchange via PROFINET, alarm A01487 is output ("Topology: Comparison option slot
components missing in the actual topology").
Access via PROFINET is not available.
"Edit Ethernet node".
node, the "DCP flashing" function is activated using the "Flash" button.
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
Drive functions