Siemens SINAMICS S120 Function Manual page 771

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Clock generation via PROFINET IO (isochronous communication)
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 cycle is
● 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 the STEP 7 Manager, select the menu item "Target system" > Ethernet >
2. Click the "Browse" button.
3. Select the CU310-2 PN or the CU320-2-DP with inserted CBE20 as node.
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 STEP 7 V5.3 SP1 via Ethernet.
Drive functions
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
applied to bus: Control Unit synchronizes with the bus and the send cycle becomes the
cycle for the Control Unit.
local 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".
The "Edit Ethernet Node" dialog box opens.
The "Browse Network" dialog box opens and displays the connected nodes.
The "DCP flashing" function is then activated via the "Flash" button.
10.3 Communication via PROFINET IO
Communication
769

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