Installation and commissioning   
3.2 Procedure for installation and commissioning 
  CP 343-1 ERPC 
18  Manual, 03/2010, C79000-G8976-C239-02 
Step  Execution  Meaning / explanation 
7  Optional: 
complete the ILS Workbench configuration 
and download this to the CP. 
This step is only necessary if you want to use ERPC functions. 
Read the relevant documentation of our cooperation partners 
ILS Technology LLC. 
8  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 FB54 in the user 
program 
  Queries via SNMP 
1
2
3
4
5
 
Figure 3-1  CP connectors with the front panel open 
 
1  MAC address 
2  Firmware version 
3  LAN connector P1 (RJ-45 jack) 
4  Chassis ground slider (see below for description) 
5  Connecting the power supply 
Ground/chassis ground concept 
 
NOTICE 
 
Please note the instructions regarding the grounding and chassis ground concept in the 
SIMATIC S7 installation guides; see “SIMATIC S7 Programmable Controller S7300 - 
Installation and Hardware: Installation Manual" /10/. 
 
Behind the hinged panel on the left of the device, you will see a slider with which you can 
connect or disconnect the chassis ground of the 24 V power supply with reference ground.