Siemens SIMATIC MV500 Operating Instructions Manual page 134

Commissioning
7.4 Connecting and setting up the reader
Note
Ethernet connection via the "X2 LAN2" interface
Note that you can only establish a connection to the optical reader via the "X1 LAN1" Ethernet
interface using SINEC PNI. You can configure the "X2 LAN2" Ethernet interface via the WBM
"Settings > Communication > Interface > Ethernet" or using a DHCP server.
Device flash test
If several readers are connected to the network/PC, it is possible to make the LK LEDs of the
device selected in the output window flash. Using the device flash test, you can identify the
required reader quickly and simply.
Follow the steps below to identify the relevant reader using the flash test:
1. Select the desired module from the device list in the "Device list" menu.
2. Click on the "Flash LED" button in the toolbar.
Reaction: The LK LED flashes at a frequency of 1 Hz (1 s) on the selected reader.
3. Click the "Stop" button to stop the flashing.
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Operating Instructions, 03/2021, C79000-G8976-C494-05
SIMATIC MV500