Siemens SIMATIC NET S7-CPs User manual

SIMATIC NET
S7-CPs for Industrial Ethernet
Manual Part B
CP 343-1 Lean
6GK7 343−1CX10−0XE0 as of hardware version 2, as of firmware version V2.2
for SIMATIC S7−300 / C7−300
Release 09/2009
C79000-G8976-C198-06
TP port:
2 x 8-pin RJ-45 jack
(beneath the front panel)
LEDs
X = Placeholder for hardware
version

Notes on the product
B−2CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
Notes on the product
Product names
This description contains information on the following product
SCP 343−1 Lean
Order number 6GK7 343−1CX10−0XE0
as of hardware version 2 and firmware version V2.2
for SIMATIC S7−300 / C7−300
Note
In this document, the term CP is used instead of the full product name.
Compatibility with the previous version
Note
Make sure that you read the information regarding extended functions and
restrictions in Chapter 7 of this manual!
Address label: Unique MAC address preset for the CP
The CP ships with a factory-set MAC address. The MAC address is printed on the
housing.
-

Contents
B−3
CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
Contents
Contents −Part A
Ethernet CPs −general information see general part. . . . . . . . . . . . . . . . . . .
Note
Please remember that Part A of the device manual also belongs to the description
of the CP. Among other things, it contains explanations of the safety notices and
general information that applies to all S7 CPs for Industrial Ethernet.
Part A of the manual release 05/2008 and this Part B belong together
You can download the general Part from the Internet:
http://support.automation.siemens.com/WW/view/en/30374198
Contents −Part B
1 Properties / Services B−5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Application B−5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Communication services B−5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Other services B−6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Requirements for Use B−8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Operation in controller device families B−8. . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Configuration B−11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Programming B−11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Installation and Commissioning B−13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Procedure / steps B−13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Module replacement without PG B−16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Controlling the operating mode B−17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 LED Displays B−18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Performance Data / Operation B−22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Number of possible connections over Ethernet B−22. . . . . . . . . . . . . . . . . . .
5.2 Characteristic data for S7 communication B−23. . . . . . . . . . . . . . . . . . . . . . . .
5.3 Characteristics of the SEND/RECEIVE interface B−24. . . . . . . . . . . . . . . . . .
5.4 PROFINET IO B−25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4.1 Characteristic data B−25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4.2 Operating PROFINET IO alongside other services B−26. . . . . . . . . . . . . . . .

Contents
B−4CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
5.4.3 Effects of multicast communication on RT communication B−26. . . . . . . . .
5.5 Characteristic data of the integrated switch B−27. . . . . . . . . . . . . . . . . . . . . .
6 The CP as Web server B−28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 Compatibility with Predecessor Products B−29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1 Enhanced functions B−29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2 Replacing older modules: spares / upgrading B−30. . . . . . . . . . . . . . . . . . . . .
8 Further Notes on Operation B−32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1 Clear/reset and Reset to factory settings B−32. . . . . . . . . . . . . . . . . . . . . . . .
8.2 Network settings with Fast Ethernet B−33. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.3 Influence of MPI on connections via Industrial Ethernet B−35. . . . . . . . . . . .
8.4 IP configuration B−36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.4.1 Detection of double IP addressing in the network B−36. . . . . . . . . . . . . . . . .
8.4.2 Obtaining the IP address over DHCP: CP STOP on expiry of the
lease B−36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.5 Media redundancy B−37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.6 Time-of-day synchronization B−37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.7 SNMP agent B−39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.8 Possible security gaps on standard IT interfaces: preventing illegal
access B−40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.9 Interface in the user program B−41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.9.1 Programmed communication connections with FB55 IP_CONFIG
(PROFINET interface) B−41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.9.2 Programmed communications connections −Assigning parameters to
the ports B−42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 How to Load New Firmware B−43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 Technical Specifications B−44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 Other Information available about the CP B−45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12 References and Literature B−46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 Properties / Services
B−5
CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
1 Properties / Services
1.1 Application
The CP 343-1 Lean communications processor is intended for operation in a
SIMATIC S7-300 or SIMATIC C7 automation system. It allows attachment of the
S7-300 to Industrial Ethernet and supports PROFINET IO.
To integrate the CP in a linear bus or ring, to connect a further Ethernet device or
to use PROFINET media redundancy, a 2-port real time ERTEC switch with
autocrossing, autonegotiation and autosensing was integrated in the CP.
1.2 Communication services
The CP supports the following communication services:
SPROFINET IO
PROFINET IO allows direct access to IO devices over Industrial Ethernet.
−PROFINET IO device
Integration of the SIMATIC S7-300 programmable controller over the CP as
intelligent PROFINET IO device.
SS7 communication and PG/OP communication with the following functions:
−PG functions (including routing)
−Operator control and monitoring functions (HMI)
−Server for data exchange on S7 connections configured at one end only
without communication blocks on the S7-300 / C7-300 station
SOpen communications services with the following functions:
−SEND/RECEIVE interface over ISO-on-TCP, TCP and UDP connections
UDP frame buffering on the CP can be disabled during configuration. When
necessary, this allows you to achieve a shorter reaction time between the
arrival of a UDP frame and its evaluation on the CPU.
−Multicast over UDP connection
The multicast mode is made possible by selecting a suitable IP address
when configuring connections.
−FETCH/WRITE services (server; corresponding to S5 protocol) over
ISO-on-TCP connections and TCP connections;
The addressing mode can be configured for FETCH/WRITE access as the
S7 or S5 addressing mode.

1 Properties / Services
B−6CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
−LOCK/UNLOCK with FETCH/WRITE services;
−Connection diagnostics using the user program
1.3 Other services
Within an Ethernet network with a ring topology, the CP supports the media
redundancy protocol MRP. You can assign the role of redundancy client to the
CP. There must be another node in the ring other than the MRP redundancy
manager.
STime-of-day synchronization over Industrial Ethernet using the following
configurable modes:
−SIMATIC mode
The CP receives MMS time messages and synchronizes its local time and
the time of the CPU.
(accuracy approx. +/−1 second)
You can choose whether or not the time of day is forwarded. The forwarding
direction can also be selected (station > LAN or LAN > station).
or
−NTP mode (NTP: Network Time Protocol)
The CP sends time-of-day queries at regular intervals to an NTP server and
synchronizes its local time of day and the time of the CPU (accuracy approx.
+/−1 second).
SAddressing using a factory-set MAC address
The CP can be reached over the default MAC address to allow an IP address to
be assigned.
SSNMP Agent
The CP supports data queries over SNMP version V1 (Simple Network
Management Protocol). It delivers the content of certain MIB objects according
to the MIB II standard and LLDP MIB.
STime of day for the diagnostic buffer
If a time master exists (using the NTP or SIMATIC mode), the time for
CP-internal diagnostic buffer is synchronized over the LAN.
SModule access protection
To protect the module form accidental or unauthorized access, protection can
be configured at various levels.
SIP configuration
For the PROFINET interface, you can configure how and with which method
the CP is assigned the IP address, the subnet mask and the address of a
gateway.

1 Properties / Services
B−7
CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
As an alternative to STEP 7, you have the option of assigning the connection
configuration via a block interface in the user program (FB55: IP_CONFIG).
SWeb diagnostics
With the aid of Web diagnostics, you can read out the diagnostic data from a
station connected via the CP to a PG/PC with an Internet browser.
If you do not require this function, you can disable it in the STEP 7 configuration
and disable the port 80.

2 Requirements for Use
B−8CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
2 Requirements for Use
2.1 Operation in controller device families
The CP can be operated in the following device families:
SS7-300 stations with the CPU types
−Standard
−Compact
−Modular
SC7 control systems in C7 packaging system
The following tables show the devices with which the CP can be operated with this
range of functions:
Notice
The tables list the CPUs and devices approved at the time of printing this manual.
S7-300 CPUs or C7 or C7 control systems approved later and not listed in the
table also support the range of functions described here.
Table 2-1 Use of the CP with S7-300
CPU Order number
CPU 312 6ES7 312−1AD10−0AB0
6ES7 312−1AE13−0AB0
CPU 312C 6ES7 312−5BD01−0AB0
6ES7 312−5BE03−0AB0
CPU 312 IFM 6ES7 312-5AC02-0AB0
CPU 313 6ES7 313-1AD03-0AB0
CPU 313C 6ES7 313−5BE01−0AB0
6ES7 313−5BF03−0AB0
CPU 313C-2 DP 6ES7 313−6CE01−0AB0
6ES7 313−6CF03−0AB0
CPU 313C-2 PtP 6ES7 313−6BE01−0AB0
6ES7 313−6BF03−0AB0
CPU 314 6ES7 314−6AE01−0AB0
6ES7 314−6AE02−0AB0
6ES7 314−6AE03−0AB0
6ES7 314−6AE04−0AB0
6ES7 314−1AF10−0AB0
6ES7 314−1AF11−0AB0
6ES7 314−1AG13−0AB0

2 Requirements for Use
B−9
CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
Table 2-1 Use of the CP with S7-300
CPU Order number
CPU 314 IFM 6ES7 314−5AE03−0AB0
6ES7 314−5AE10−0AB0
CPU 314C-2 DP 6ES7 314−6CF02−0AB0
6ES7 314−6CG03−0AB0
CPU 314C-2 PtP 6ES7 314−6BF01−0AB0
6ES7 314−6BF02−0AB0
6ES7 314−6BG03−0AB0
CPU 315 6ES7 315-1AF03-0AB0
CPU 315−2 DP 6ES7 315−2AF03−0AB0
6ES7 315−2AG10−0AB0
6ES7 315−2AH14−0AB0
CPU 315−2 PN/DP 6ES7 315−2EG10−0AB0
6ES7 315−2EH13−0AB0
6ES7 315−2EH14−0AB0
CPU 315F−2 DP 6ES7 315−6FF01−0AB0
CPU 315F−2 PN/DP 6ES7 315−2FH10−0AB0
6ES7 315−2FH13−0AB0
6ES7 315−2FJ14−0AB0
CPU 315T−2 DP 6ES7 315−6TG10−0AB0
CPU 316-2 DP 6ES7 316-2AG00-0AB0
CPU 317−2 DP 6ES7 317−2AJ10−0AB0
CPU 317−2 PN/DP 6ES7 317−2EJ10−0AB0
6ES7 317−2EK13−0AB0 / 6ES7 317-2EK14-0AB0
CPU 317F−2 DP 6ES7 317−6FF00−0AB0
6ES7 317−6FF03−0AB0
CPU 317F−2 PN/DP 6ES7 317−2FJ10−0AB0
6ES7 317−2FK13−0AB0 / 6ES7 317-2FK14-0AB0
CPU 317T−2 DP 6ES7 317−6TJ10−0AB0
CPU 318-2 6ES7 318-2AJ00-0AB0
CPU 319−3 PN/DP 6ES7 318−3EL00−0AB0
CPU 319−3 F PN/DP 6ES7 318−3FL00−0AB0
CPU 614 6ES7 614-1AH03-0AB3

2 Requirements for Use
B−10 CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
Table 2-2 Use of the CP in C7 control systems
C7 Order number
C7−613 6ES7 613−1CA01−0AE03
6ES7 613−1CA02−0AE3
C7−633 DP 6ES7 633−2BF02−0AE03
C7−635 Keys 6ES7 635−2EC01−0AE3
6ES7 635−2EC02−0AE3
C7−635 Touch 6ES7 635−2EB01−0AE03
6ES7 635−2EB02−0AE3
C7−636 Keys 6ES7 636−2EC00−0AE03
6ES7 636−2EC00−0AE3
C7−636 Touch 6ES7 636−2EB00−0AE3

2 Requirements for Use
B−11
CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
2.2 Configuration
The following version of STEP 7 is required:
Table 2-3
STEP 7 version Functions of the CP
V5.2 or higher The range of functions of the CP 343-1 Lean (CX00) can be
configured.
V5.4 or higher Requirement for configuring the full functionality of the
CP 343-1 Lean (CX10 with firmware V1.0) including PROFINET
IO.
V5.4, Service Pack 5
+ HSP 1043
Requirement for configuring the new functions of the CP.
V5.4, Service Pack 5, Hotfix 2
+ HSP 1043
Requirement for configuring the new functions of the CP.
Installation of the Hardware Support Package (HSP)
You will find the HSP on the Internet at the following address:
www.siemens.com/automation/step7−hwconfig2
Install the HSP in STEP 7 / HW Config in the “Options” menu with the “Install
Hardware Updates” menu command. You will find further information in the STEP 7
online help (under “HSP” or “Hardware update”).
After installing the HSP, close STEP 7. After restarting STEP 7, the CP is in the
catalog of HW Config.
2.3 Programming
Programming −FCs / FBs
For some communications services, there are pre-programmed blocks (FCs/FBs)
available as the interface in your STEP 7 user program.
Please refer to the documentation of the FCs / FBs in the online help of STEP 7 or
in the manual /9/.

2 Requirements for Use
B−12 CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
Notice
We recommend that you always use the latest block versions for all module types.
You will find information on the latest block version and links to download the
current blocks in our Customer Support area on the Internet:
http://support.automation.siemens.com/WW/news/en/8797900
With the older module types, this recommendation assumes that you are using the
latest firmware for the particular block type.
Caution
The communication blocks for S7-300 (SIMATIC NET block libraries for S7-300 in
STEP 7) must not be called in more than one priority class! If, for example, you
call a communication block in OB1 and in OB35, block execution could be
interrupted by the higher-priority OB.
If you call blocks in more than one OB, you must write your program so that a
communication block that is currently executing cannot be interrupted by another
communication block (for example by disabling/enabling SFC interrupts).

3 Installation and Commissioning
B−13
CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
3 Installation and Commissioning
3.1 Procedure / steps
Step Explanation / meaning
1. Install the CP on the S7 standard rail.
2. Establish the connection via the enclosed bus
connector to the backplane bus.
Slots 4 to 11 are permitted for the CP in racks 0 to 3
(connected by IM 360/361).
Proceed as in the sections dealing with setup and
wiring, described in detail in /1/.
Note
The CP cannot be used in an extension rack that is connected via the IM 365! Reason: The required
communication bus is not connected to the extension rack via the IM 365.
3. Connect the CP to the power supply. Follow the steps as described in detail in /1/ when
wiring between the power supply and the CPU.
Notes
SThe CPU, CP and IM (if one exists) must be connected to the same power supply.
SOnly wire up the S7-300 / C7-300 with the power switched off!
4. Connect the CP to Industrial Ethernet.
5. The remaining steps in commissioning involve
downloading the configuration data.
To download the configuration, you can connect
the PG as follows:
Svia MPI
Svia Industrial Ethernet
For further details, refer to the general Part A of
this manual:
−addressing the first time (IP address
assignment / node initialization);
−downloading the defined configuration
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 S7-1613
package or SOFTNET IE). The TCP/IP protocol
must be installed. The protocol used must then be
applied to the S7ONLINE access point.

3 Installation and Commissioning
B−14 CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
Step Explanation / meaning
6. Use the diagnostic functions during
commissioning and to analyze problems.
The following options are available:
SThe LED displays on the CP
SHardware diagnostics and troubleshooting with
STEP 7
SCommunication diagnostics with STEP 7 / NCM
Diagnostics
SStandard information using HW Config
SWeb diagnostics
SIf applicable, evaluation of the alarm block
FB54 in the user program
SQueries via SNMP
Slider for setting the
chassis ground contact
Attachment to Industrial Ethernet:
2 x 8-pin RJ-45 jack
Figure 3-1 Connectors of a CP 343−1 Lean with the front panel open
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
S7−300 −Installation and Hardware: Installation Manual” /1/.
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.
SSlider pushed in: chassis and reference ground connected (note: the slider
must be felt to lock in place).

3 Installation and Commissioning
B−15
CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
SSlider pulled out: No connection between chassis and reference ground.
When shipped: Slider pushed in
Use a screwdriver to set the slider.
Note
An Ethernet cable can also be inserted and removed with the power supply on.
Note
The hinged front panel must be kept closed during operation.
The module must be installed so that its upper and lower ventilation slits are not
covered, allowing adequate ventilation.
!Warning
When used under hazardous conditions (zone 2), the devices must be installed in
an enclosure.
Where ATEX 95 (EN 60079−15:2005, EN 60079−0:2006) applies, this enclosure
must meet at least IP54 in compliance with EN 60529.
WARNING −EXPLOSION HAZARD: DO NOT DISCONNECT EQUIPMENT
WHEN A FLAMMABLE OR COMBUSTIBLE ATMOSPHERE IS PRESENT.
!Warning
The device is designed for operation with safety extra-low voltage (SELV). This
means that only safety extra-low voltages (SELV) complying with
IEC950/EN60950/ VDE0805 may be connected to the power supply terminals.
The power unit for supplying the device must comply with NEC Class 2 as
described by the National Electrical Code(r) (ANSI/NFPA 70).
The power of all connected power units in total must correspond to a limited power
source (LPS).
Configuration
To set up the CP for the communications services, note the information on the
topic of configuration in Section 2.2 of this device manual.

3 Installation and Commissioning
B−16 CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
3.2 Module replacement without PG
General procedure
The configuration data for the CP is stored either on the CPU or on the CP. If the
data is stored on the CPU, the module can be replaced with a module of the same
type (identical order number) without a PG.
This option can be selected in the properties dialog of the CP (in the “Options” tab
−“Replace Module without PG”). We recommend that you store the configuration
data on the CPU if the configuration memory of the CPU allows.
For information on replacing previous modules, refer to the section “Compatibility”
in Chapter 7.
Module replacement: Special feature of IP address assignment from a DHCP
server
During configuration of the CP you can specify the IP configuration in the
properties dialog; one option is to obtain the IP address from a DHCP server.
Notice
When replacing modules, remember that the factory-set MAC address of the new
module is different from the previous module. When the factory-set MAC address
of the new module is sent to the DHCP server, this will return either a different or
possibly even no IP address.
Ideally, you should therefore configure IP as follows:
Always configure a client ID if you want to obtain the same IP address from the
DHCP server after replacing the module.
If you have configured a new MAC address instead of the factory-set MAC
address (generally the exception), the DHCP server always receives the
configured MAC address and the CP obtains the same IP address as the replaced
module.

3 Installation and Commissioning
B−17
CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
3.3 Controlling the operating mode
You have the option of changing the mode of the CP between RUN and STOP
using the STEP 7 / NCM S7 configuration software (PLC > Accessible Nodes).
Procedure
SSwitch from STOP to RUN:
The CP reads the configured and/or downloaded data into the work memory
and then changes to the RUN mode.
SSwitch from RUN to STOP:
The CP changes to STOP. Established connections (ISO-on-TCP, TCP, UDP
connections) are terminated (transitional phase with LED display “STOPPING”);
The reaction is as follows in STOP:
−The communications connections mentioned above are terminated;
−The configuration and diagnostics of the CP is possible (system connections
for configuration, diagnostics, and PG channel routing are retained);
−HTTP access is possible
−The routing function is active
−The time of day is not forwarded
−PROFINET IO is disabled.

4 LED Displays
B−18 CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
4 LED Displays
The display on the front panel consists of 8 LEDs that indicate the operating mode
and the communication status.
Front
panel: SF
BF
RX/TX
RUN
STOP
DC5V
X1P1
X1P2
MAINT
The LEDs have the following meaning:
SSF: Group error
SBF: Bus fault PROFINET IO
SDC5V: DC 5 V power supply via the backplane bus (green = OK)
SRX/TX: Acyclic data exchange, for example SEND/RECEIVE
(not relevant for PROFINET IO data)
SRUN: RUN mode
SSTOP: STOP mode
SX1 / P1: Link status of Ethernet port 1
SX1 / P2: Link status of Ethernet port 2
SMAINT Maintenance necessary (Check/evaluate the diagnostic buffer)

4 LED Displays
B−19
CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
LEDs for displaying the mode
The different combinations of the LEDs on the front panel indicate the status:
SF (red) BF (red) RUN
(green)
STOP
(yellow)
CP Operating Mode
−
SStarting up after power “ON”
or
SStopped (STOP) with errors
In this state, the CPU or intelligent
modules in the rack remain accessible
using PG functions.
Starting up (STOP->RUN)
Running (RUN)
Stopping (RUN->STOP)
Stopped (STOP)
In the STOP mode configuring and performing
diagnostics on the CP remain possible.
−−−SInterface networked but no LAN cable
inserted
or
SDuplicate IP address detected
−−The CP is configured as a PROFINET IO
device; there is no data exchange with the
PROFINET IO controller.
−−SRunning (RUN), with fault
or
SEvent viewer in conjunction with the MRP
function
The CP diagnostic buffer provides detailed
information.
or
SAdvanced port diagnostics reports an
error. Examples:
−Current port setting (transmission
medium, duplex) does not match the
configuration.
−Port interconnection does not match
the configuration.
Module fault / system error
Legend: (colored) on off (colored) flashing “−” any

4 LED Displays
B−20 CP 343-1 Lean for Industrial Ethernet / Manual Part B
Release 09/2009
C79000-G8976-C198-06
The “MAINT” LED
Notice
When the “MAINT” LED lights up, important error messages and/or diagnostic
interrupts have occurred. The CP continues in RUN mode.
Check the entries in the diagnostic buffer of the device.
Firmware download −LED display patterns
The LED display patterns when downloading the firmware are described in
Chapter 9.
LEDs for displaying the CP communication status
In addition to the LEDs that signal the CP state, the following LEDs provide
information about the status of the CP interface to Industrial Ethernet.
Table 4-1
LED Display Meaning
RX/TX (green) The CP is sending/receiving over Industrial
Ethernet
Note:
PROFINET IO services are not signaled
here.
P1 / P2
(green / yellow)
Port has no connection to
Industrial Ethernet.
green Existing connection over port to
Industrial Ethernet (LINK status).
green /
yellow
LED flashes yellow (constant light green):
Port sending/receiving over
Industrial Ethernet or PROFINET IO.
Note:
All received / sent frames are signaled for
each specific port including those simply
forwarded by the switch.
yellow Continuous data transfer at the port over
Industrial Ethernet (for example
PROFINET IO).
Legend: (colored) on off (colored) flashing “−” any