Leds - Siemens SIMATIC NET CP 442-1 RNA Equipment Manual

LEDs

LEDs on the housing front
The following LEDs on the front panel show the operating and communication status of the
CP:
Figure 4-1
The LEDs have the following meaning:
• INTF: Internal error
• EXTF: External error
• BUS1F: Bus fault on Ethernet interface
• BUS2F: Bus fault RNA interface
• TXD: Frame traffic (sending) over Ethernet
• RXD: Frame traffic (receiving) over Ethernet
• MAINT: Maintenance necessary (diagnostics buffer)
• RUN: RUN mode
• STOP: STOP mode
• X1 P1: Connection status / activity of the Ethernet port of the Ethernet interface
• X2P1, X2P2: Connection status / activity of Ethernet port 1, 2 of the RNA interface
Unlabeled LEDs have no significance (only relevant for diagnostics).
Table 4- 1
Symbol
Meaning
CP 442-1 RNA
Equipment Manual, 03/2022, C79000-G8976-C318-05
LEDs of the CP 442-1 RNA
Legend: Meaning of the LED symbols in the following tables
ON OFF Flashing
4
-
Any
29