Installation, connecting up and commissioning
5.3 Connecting the CP to Ethernet
CP 343-1 Lean
34 Manual, 10/2012, C79000−G8976−C198−07
The PG / PC requires a LAN attachment, for example via a CP 1613 or CP 1411 and must
have the necessary software (for example the S71613 package or SOFTNET IE). The
TCP/IP protocol must be installed. The protocol used must then be applied to the S7ONLINE
access point.
Diagnostics
Use the diagnostic functions during commissioning and to analyze problems. The following
options are available:
● The LED displays on the CP
● Hardware diagnostics and troubleshooting with STEP 7
● Communication diagnostics with STEP 7 / NCM Diagnostics
● Static information using HW Config
● Web diagnostics
● If applicable, evaluation of the alarm block FB 54 in the user program
● Queries via SNMP
5.3 Connecting the CP to Ethernet
Connecting interface X1 to Industrial Ethernet
1. Connect the CP to Industrial Ethernet via one of the RJ45 jacks.
2. Where necessary, connect another component to the remaining free RJ45 jack.
Note
Autocrossing mechanism - effects on the connectors
For small local area networks or for attaching several Ethernet devices, a 2port switch
has been integrated on the PROFINET interface of the CP.
With the autocrossing mechanism integrated in the switch, it is possible to use a standard
cable to connect the PG/PC. A crossover cable is not necessary.
Please note the following points:
Manual configuration
If a port is set to manual configuration and autonegotiation is disabled, the
autocrossing mechanism is also disabled for this port. Which cable you need to use
depends on the partner device (network component or end device).
In the factory, the ports are set for automatic configuration.
For more information, refer to section Network settings (Page 38)
Con
necting switches
If you connect further switches, make sure that no ring is formed in the network.
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