Siemens SIMATIC NET CP 343−1 Lean User Manual

SIMATIC NET

S7-CPs for Industrial Ethernet

Manual Part B3L

CP 343-1 Lean

6GK7 343−1CX10−0XE0 as of hardware version 2, as of firmware version V2.0

for SIMATIC S7−300 / C7−300

Release 03/2007
C79000-G8976-C198-04

TP port:

2 x 8−pin RJ−45 socket

(beneath the front panel)

LED displays

X = Placeholder for hardware

version

Notes on the Product

B3L−2

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L

Release 03/2007

C79000-G8976-C198-04

Notes on the Product

Product Names

This description contains information on the following product

S CP 343−1 Lean

Order number 6GK7 343−1CX10−0XE0
as of hardware version 2 and firmware version V2.0
for SIMATIC S7−300 / C7−300

Note

In this document, the term CP is used instead of the full product name.

Printed Product Information Supplied with the Product

Note

All the notices in the Product Information Bulletin shipped with this device must
be adhered to.

Compatibility with the Previous Version

Note

Due to the increased functionality and restrictions, pay particular attention to
the notes in Chapter 8 of this manual.

Address label: Unique MAC address preset for the CP

The CP ships with a factory-set MAC address.

To ensure a unique address assignment, we recommend that you use this factory
set MAC address when configuring the module!

-

Contents

B3L−3

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L
Release 03/2007

C79000-G8976-C198-04

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.

You will find the references in this Part B of the manual /.../ in the Appendix of the
general Part A of the manual.

The following version of the manual Part A of the manual belongs to this version of
Part B: Release 01/2007

You can download the general Part from the Internet:

http://www4.ad.siemens.de/view/cs/en/8777865

Contents − Part B3L

1 Properties / Services B3L−5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 Requirements for Use B3L−8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Installation and Commissioning B3L−11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.1 Procedure / Steps B3L−11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Displays B3L−14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 Performance Data B3L−17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.1 Number of Possible Connections over Ethernet B3L−17. . . . . . . . . . . . . . . . . . .

5.2 Characteristic Data for S7 Communication B3L−17. . . . . . . . . . . . . . . . . . . . . . .

5.3 Characteristics of the SEND/RECEIVE Interface B3L−18. . . . . . . . . . . . . . . . .

5.4 Characteristic Data for PROFINET IO B3L−19. . . . . . . . . . . . . . . . . . . . . . . . . . .

6 Configuring and Programming the CP as a PROFINET IO Device B3L−20. . . . . . . . . .

6.1 Overview of the Preparatory Steps B3L−20. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2 Principle of Data Exchange over PROFINET IO B3L−21. . . . . . . . . . . . . . . . . .

6.3 Configuration B3L−22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.3.1 Installing the CP and Specifying it as PROFINET IO Device B3L−22. . . . . . . .

6.3.2 Assigning the PROFINET IO Device to a PROFINET IO Controller B3L−24. .

6.4 Programming B3L−27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.4.1 Interface for Programming on the PROFINET IO Device B3L−27. . . . . . . . . . .

Contents

B3L−4

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L

Release 03/2007

C79000-G8976-C198-04

6.4.2 Initialization and Configuration B3L−28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.5 Example of Configuration and Programming B3L−30. . . . . . . . . . . . . . . . . . . . .

7 Web Diagnostics B3L−33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.1 Requirements and Use B3L−33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.2 Diagnostics Pages of the CP B3L−34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.2.1 Start Page B3L−35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.2.2 Identification B3L−36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.2.3 Rack Configuration B3L−37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.2.4 Diagnostic Buffer B3L−39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.2.5 Industrial Ethernet B3L−40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.2.6 PROFINET IO B3L−42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 Compatibility with Predecessor Products B3L−44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.1 Extended Functionality B3L−44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2 Replacing Older Modules / Replacing Faulty Modules B3L−44. . . . . . . . . . . . .

9 Further Notes on Operation B3L−46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9.1 Memory Reset B3L−46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9.2 Working with Fast Ethernet − automatic switchover B3L−47. . . . . . . . . . . . . . .

9.3 SNMP Agent B3L−49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9.4 Possible Security Gaps on Standard IT Interfaces / Preventing

Illegal Access B3L−50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9.5 Influence of MPI on Connections via Industrial Ethernet B3L−50. . . . . . . . . . .

9.6 Special Features of IP Configuration B3L−51. . . . . . . . . . . . . . . . . . . . . . . . . . . .

9.7 Reserved Port Numbers B3L−51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9.8 Restart after Detection of a Duplicate IP Address in the Network B3L−52. . . .

9.9 Obtaining the IP Address over DHCP − CP STOP on Expiry of

the Lease B3L−52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9.10 Other information available about the CP B3L−52. . . . . . . . . . . . . . . . . . . . . . . .

10 How to Load New Firmware B3L−53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11 Technical Specifications B3L−54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 Properties / Services

B3L−5

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L
Release 03/2007

C79000-G8976-C198-04

1 Properties / Services

Application

The CP 343−1 Lean communications processor is designed for operation in a
SIMATIC S7-300 programmable logic controller. It allows attachment of the
S7−300 to Industrial Ethernet and supports PROFINET IO.

A 2-port switch with autocrossing, autonegotiation and autosensing was integrated
in the CP for simple integration in a line or for attaching a further Ethernet device.

Services

The CP supports the following communication services:

S PROFINET IO device

Integration of the SIMATIC S7−300 programmable controller over the CP as
intelligent PROFINET IO device.

S S7 communication and PG/OP communication

− 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

S S5 compatible communication with

− SEND/RECEIVE interface over ISO-on-TCP, TCP and UDP connections

− 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) via

ISO-on-TCP connections and TCP connections;

The addressing mode can be configured for FETCH/WRITE access as the
S7 or S5 addressing mode.

− LOCK/UNLOCK with FETCH/WRITE services;

1 Properties / Services

B3L−6

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L

Release 03/2007

C79000-G8976-C198-04

S Time-of-day synchronization over Industrial Ethernet using the following

configurable modes:

− SIMATIC mode

The CP receives MMS time frames and synchronizes its local time and the
time of the CPU (accuracy approx. +/− 1 second);

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).

S Time of day for the diagnostic buffer

If a time master exists (using the NTP or SIMATIC mode), the time for the
CP-internal diagnostic buffer is synchronized over the LAN (accuracy approx.
+/− 10 ms)

S Addressing using a factory-set MAC address

The CP can be reached over the default MAC address to allow an IP address to
be assigned.

S SNMP Agent

The CP supports data queries over SNMP in version V1 (Simple Network
Management Protocol) according to the MIB II and LLDP MIB standard.

You will find more information on MIB in the manual “Commissioning PC
Stations” on the SIMATIC NET Manual Collection or at the following
SIMATIC NET Internet page:

http://support.automation.siemens.com/WW/view/en/15177711

S IP configuration

You can configure how and with which method the CP is assigned the IP
address, the subnet mask and the address of a default router.

It is also possible, as an alternative, to assign the connection configuration to
the CP using STEP 7 or using a block interface in the user program (FB55:
IP_CONFIG) (see /Part A/).

S Web diagnostics

With the aid of Web diagnostics, you can read out the diagnostic data from a
station connected over the CP to a PG/PC with an Internet browser.

1 Properties / Services

B3L−7

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L
Release 03/2007

C79000-G8976-C198-04

Configuration

It is possible to download the configuration data to the CP over MPI or
LAN/Industrial Ethernet. You require STEP 7 with NCM S7 for Industrial Ethernet
(NCM IE) with the following version:

Table 1-1

Version STEP 7 / NCM IE 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 2 *) Requirement for configuring the full functionality of the

CP 343−1 Lean (CX10 with firmware V2.0) including Web
diagnostics.

*) To use the CP with V5.4 Service Pack 1, you will need to install Hotfix 2, the corresponding hardware

update and a block setup. You will find more information at the following Internet page:

http://www4.ad.siemens.de/WW/news/en/24463868

Programming − Using Blocks

For some communications services, there are pre-programmed blocks (FCs/FBs)
available as the interface in your STEP 7 user program.

You will find a detailed description of these blocks in the NCM S7 for Ethernet
manuals.

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://www4.ad.siemens.de/WW/news/en/8797900

If you are using older block types, this recommendation only applies if you also
have the latest firmware version.

You will find further information and Internet addresses in the Preface of the
General Part of this manual.

2 Requirements for Use

B3L−8

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L

Release 03/2007

C79000-G8976-C198-04

2 Requirements for Use

General Operation

The CP can be operated in the following device families:

S S7−300 stations with the CPU types

− Standard

− Compact

− Modular

S C7 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 313−5BE00−0AB0

6ES7 313−5BE01−0AB0
6ES7 313−5BF03−0AB0

CPU 313C−2 DP 6ES7 313−6CE00−0AB0

6ES7 313−6CE01−0AB0
6ES7 313−6CF03−0AB0

CPU 313C−2 PtP 6ES7 313−6BE00−0AB0

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

B3L−9

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L
Release 03/2007

C79000-G8976-C198-04

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 314−6CF00−0AB0

6ES7 314−6CF02−0AB0
6ES7 314−6CG03−0AB0

CPU 314C−2 PtP 6ES7 314−6BF00−0AB0

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

CPU 315−2 PN/DP 6ES7 315−2EG10−0AB0

6ES7 315−2EH13−0AB0

CPU 315F−2 DP 6ES7 315−6FF01−0AB0

CPU 315F−2 PN/DP 6ES7 315−2FH10−0AB0

6ES7 315−2FH13−0AB0

CPU 316 6ES7 316−1AG00−0AB0

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

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

CPU 318−2 6ES7 318−2AJ00−0AB0

CPU 319−3 PN/DP 6ES7 318−3EL00−0AB0

CPU 614 6ES7 614−1AH03−0AB3

2 Requirements for Use

B3L−10

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L

Release 03/2007

C79000-G8976-C198-04

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

3 Installation and Commissioning

B3L−11

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L
Release 03/2007

C79000-G8976-C198-04

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

S The CPU, CP and IM (if one exists) must be connected to the same power supply.
S Only wire up the S7-300 / C7-300 with the power switched off!

4. Attach 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:

S via MPI
S via 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.

6. User diagnostics for commissioning and to
analyze problems.

The following options are available:

S The LED displays on the CP
S Hardware diagnostics and troubleshooting with

STEP 7

S Communication diagnostics with STEP 7 / NCM

Diagnostics

S Standard information using HW Config
S Web diagnostics
S If applicable, evaluation of the alarm block

FB54 in the user program

3 Installation and Commissioning

B3L−12

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L

Release 03/2007

C79000-G8976-C198-04

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.

S Slider pushed in: chassis and reference ground connected (note: the slider

must be felt to lock in place).

S Slider 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.

3 Installation and Commissioning

B3L−13

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L
Release 03/2007

C79000-G8976-C198-04

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.

To comply with ATEX100a (EN 60079−15), this enclosure must meet the
requirements of 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).

4 Displays

B3L−14

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L

Release 03/2007

C79000-G8976-C198-04

4 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

P1
P2

DC5V

The LEDs have the following meaning:

S SF: Group error

S BF: Bus fault PROFINET IO

S DCV5: DC 5 V power supply via the backplane bus (green = OK)

S RX/TX: Acyclic data exchange, for example Send/Receive

(not relevant for PROFINET IO data)

S RUN: RUN mode

S STOP: STOP mode

S P1 / P2: Link status of Ethernet port 1 / port 2

4 Displays

B3L−15

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L
Release 03/2007

C79000-G8976-C198-04

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

−

S Starting up after power “ON”

or

S Stopped (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.

− − − S No LAN cable plugged in

or

S Duplicate IP address detected

−

−

− The CP is configured as a PROFINET IO

device; there is no data exchange with the
PROFINET IO controller

Module fault / system error

Downloading firmware.

Firmware was successfully downloaded.

Firmware could not be downloaded.

Legend: (colored) on off (colored) flashing “−” any

4 Displays

B3L−16

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L

Release 03/2007

C79000-G8976-C198-04

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:

Sending / receiving over PROFINET IO is
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.

P1 / P2

(green / yellow)

yellow Continuous data transfer at the port over

Industrial Ethernet (for example
PROFINET IO).

Legend: (colored) on off (colored) flashing “−” any

5 Performance Data

B3L−17

CP 343-1 Lean for Industrial Ethernet / Manual Part B3L
Release 03/2007

C79000-G8976-C198-04

5 Performance Data

5.1 Number of Possible Connections over Ethernet

Table 5-1

Characteristic Explanation / Values

Permitted number of simultaneous connections in
total over Industrial Ethernet

12 maximum

Example of Maximum Load

You can operate:

4 S7 connections
4 ISO-on-TCP connections
2 TCP connections
2 UDP connections

Also:

S Further TCP connections for Web diagnostics

S 1 PROFINET connection to a PROFINET IO controller

5.2 Characteristic Data for S7 Communication

Table 5-2

Characteristic Explanation / Values

Number of connections for S7 communication on
Industrial Ethernet for

S Operator control and monitoring functions (HMI)
S S7 connections configured at one end

4 maximum

(the number depends on the CPU type being used.
Please refer to /1/ for the values for your CPU.)

LAN interface − data record length per protocol unit

S sending
S receiving

240 bytes / PDU

240 bytes / PDU