Siemens SCALANCE M874-2 User manual

SCALANCE M874, M876
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SIMATIC NET
Industrial Remote Communication
Remote Networks
SCALANCE M874, M876
Operating Instructions
07/2014
C79000
-G89760-C331-03
Preface
Description of the device
1
Installation
2
Connecting up
3
Dimension drawing
4
Technical specifications
5
Approvals
A

Siemens AG
Industry Sector
Postfach 48 48
90026 NÜRNBERG
GERMANY
Order number: C79000-G8976-C331
Ⓟ
07/2014 Subject to change
Copyright © Siemens AG 2013 - 2014.
All rights reserved
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by
personnel qualified
for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.

SCALANCE M874, M876
Operating Instructions, 07/2014, C79000-G89760-C331-03 3
Preface
Purpose of the Operating Instructions
These compact operating instructions contain information with which you will be able to
install and connect up a device of the SCALANCE M874, M876 product line. The
configuration and the integration of the device in a network are not described in these
instructions.
Validity of the manual
These operating instructions apply to the following devices:
●SCALANCE M874-2
●SCALANCE M874-3
●SCALANCE M876-3
Naming of the devices
Classification
Description
Terms used
Product line For all devices and variants of all product groups within the
SCALANCE M-800 product line, the term M-800 is used.
M-800
Product group For all devices and variants of a product group, only the product
group is used.
M87x
Device For a device, only the device name is used. M876-3
M874-2
M874-3
Further documentation
●System manual "Industrial Ethernet"
The system manual contains information on other SIMATIC NET products that you can
operate along with the devices of this product line in an Industrial Ethernet network.
There, you will find among other things optical performance data of the communications
partner that you require for the installation.
The "SIMATIC NET Industrial Ethernet" system manual can be found on the Internet
pages of Siemens Industry Online Support under the following entry ID:27069465
(http://support.automation.siemens.com/WW/view/wn/27069465)

Preface
SCALANCE M874, M876
4Operating Instructions, 07/2014, C79000-G89760-C331-03
●"Passive network components" system manual
This system manual contains installation instructions for several of the most common
components and guidelines for setting up networked automation plants in buildings.
The "Passive Network Components" system manual can be found on the Internet pages
of Siemens Industry Online Support under the following entry ID:84922825
(http://support.automation.siemens.com/WW/view/en/84922825)
SIMATIC NET manuals
You will find SIMATIC NET manuals on the Internet pages of Siemens Industry Online
Support:
●using the search function:
Link to Siemens Industry Online Support (http://support.automation.siemens.com/)
Enter the entry ID of the relevant manual as the search item.
●In the navigation panel on the left hand side in the area "Industrial Communication":
Link to the area "Industrial Communication"
(http://support.automation.siemens.com/WW/view/en/10805878/133400)
Go to the required product group and make the following settings:
tab "Entry list", Entry type "Manuals"
You will find the documentation for the SIMATIC NET products relevant here on the data
medium that ships with some products:
●Product CD / product DVD
●SIMATIC NET Manual Collection
You will find the order numbers for the Siemens products of relevance here in the following
catalogs:
●SIMATIC NET Industrial Communication / Industrial Identification, catalog IK PI
●SIMATIC Products for Totally Integrated Automation and Micro Automation, catalog
ST 70
●Industry Mall - catalog and ordering system for automation and drive technology, Online
catalog (http://eb.automation.siemens.com/)
You can request the catalogs and additional information from your Siemens representative.

Preface
SCALANCE M874, M876
Operating Instructions, 07/2014, C79000-G89760-C331-03 5
Security messages
Note
Siemens offers IT security mechanisms for its automation and drive product portfolio in order
to support the safe operation of the plant/machine.
Our products are also continuously
developed further with regard to IT security. We therefore recommend that you regularly
check for updates of our products and that you only use the latest versions. You will find
information in:
(
http://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo2&aktprim=99&lang=
en
)
Here, you can register for a product
-specific newsletter.
For the safe operatio
n of a plant/machine, however, it is also necessary to integrate the
automation components into an overall IT security concept for the entire plant/machine,
which corresponds to the state
-of-the-art IT technology. You will find information on this in:
(http://www.siemens.com/industrialsecurity)
Products from other manufacturers that are being used must also be taken into account.
License conditions
Note
Open source software
Read the license
conditions for open source software carefully before using the product.
You will find license conditions in the following documents on the supplied data medium:
●DOC_OSS-SCALANCE-M_74.pdf
●DC_LicenseSummaryScalanceM874_76.htm
●DC_LicenseSummaryScalanceM876_76.htm
SIMATIC NET glossary
Explanations of many of the specialist terms used in this documentation can be found in the
SIMATIC NET glossary.
You will find the SIMATIC NET glossary here:
●SIMATIC NET Manual Collection or product DVD
The DVD ships with certain SIMATIC NET products.
●On the Internet under the following entry ID:
50305045 (http://support.automation.siemens.com/WW/view/en/50305045)

Preface
SCALANCE M874, M876
6Operating Instructions, 07/2014, C79000-G89760-C331-03

SCALANCE M874, M876
Operating Instructions, 07/2014, C79000-G89760-C331-03 7
Table of contents
Preface ................................................................................................................................................... 3
1 Description of the device ......................................................................................................................... 9
1.1 Product characteristics...................................................................................................................9
1.1.1 SCALANCE M874-2, M874-3 ........................................................................................................9
1.1.2 SCALANCE M876-3 ....................................................................................................................10
1.2 Unpacking and checking..............................................................................................................12
1.3 Accessories..................................................................................................................................13
1.4 LED display ..................................................................................................................................14
1.4.1 SCALANCE M874-2, M874-3 ......................................................................................................14
1.4.2 SCALANCE M876-3 ....................................................................................................................16
1.5 SET button ...................................................................................................................................18
1.6 C-PLUG and KEY-PLUG .............................................................................................................20
2 Installation ............................................................................................................................................ 23
2.1 Securing the housing ...................................................................................................................24
2.2 Wall mounting ..............................................................................................................................25
2.3 Installing on the DIN rail...............................................................................................................26
2.4 Installing on the S7-300 standard rail ..........................................................................................27
2.5 Installing on the S7-1500 standard rail ........................................................................................28
3 Connecting up....................................................................................................................................... 31
3.1 Safety when connecting up..........................................................................................................31
3.2 SIM card.......................................................................................................................................33
3.3 Power supply................................................................................................................................34
3.4 Grounding ....................................................................................................................................36
3.5 Digital input/output .......................................................................................................................37
3.6 Antennas ......................................................................................................................................39
3.7 Ethernet port ................................................................................................................................42
3.8 Replacing the PLUG ....................................................................................................................43
4 Dimension drawing ............................................................................................................................... 45
4.1 SCALANCE M874-2, M874-3 ......................................................................................................45
4.2 SCALANCE M876-3 ....................................................................................................................47

Table of contents
SCALANCE M874, M876
8Operating Instructions, 07/2014, C79000-G89760-C331-03
5 Technical specifications ........................................................................................................................ 49
5.1 SCALANCE M874-2.................................................................................................................... 49
5.2 SCALANCE M874-3.................................................................................................................... 52
5.3 SCALANCE M876-3.................................................................................................................... 55
A Approvals ............................................................................................................................................. 59
A.1 Note - products in general without shipbuilding approvals ......................................................... 59
A.2 INSTALLATION........................................................................................................................... 60
A.3 EU declaration of conformity ....................................................................................................... 62
A.4 ATEX ........................................................................................................................................... 64
A.5 IECEx .......................................................................................................................................... 64
A.6 EMC directive.............................................................................................................................. 65
A.7 RoHS directive ............................................................................................................................ 65
A.8 RCM / C-TICK ............................................................................................................................. 65
A.9 FM certification............................................................................................................................ 66
A.10 Conformity with FCC ................................................................................................................... 67
A.11 UL certification (product safety) .................................................................................................. 69
A.12 UL HAZ. LOC certification (explosion protection) ....................................................................... 69
Index .................................................................................................................................................... 71

SCALANCE M874, M876
Operating Instructions, 07/2014, C79000-G89760-C331-03 9
Description of the device
1
1.1
Product characteristics
1.1.1
SCALANCE M874-2, M874-3
Interfaces
Functionality
M874-2
M874-3
Connectors for external antennas 1
SMA antenna connector
Ethernet interface
2 x RJ-45 10 / 100 Mbps
Digital input/output
1/1
Scope of delivery
The following components ship with the product:
●One device
●A 5-pin terminal block for the power supply
●A 2-pin terminal block for the digital output
●A 2-pin terminal block for the digital input
●Product CD
Note
Not included with the product
The following components do not ship with the product:
•
KEY-PLUG / C-PLUG
You will find more detailed information in "C-PLUG and KEY-PLUG (Page 20)".
•
Antennas
You will find more detailed information in "Accessories (Page 13)".
•
SIM card
Use the SIM card from the chosen mobile wireless provider

Description of the device
1.1 Product characteristics
SCALANCE M874, M876
10 Operating Instructions, 07/2014, C79000-G89760-C331-03
Order numbers
Type
Order number
Description
SCALANCE M874-2 6GK5 874-2AA00-2AA2 Mobile wireless router for 2G
(EDGE)
SCALANCE M874-3 6GK5 874-3AA00-2AA2 Mobile wireless router for 3G
(HSPA+)
1.1.2
SCALANCE M876-3
Interfaces
Functionality
M876-3
Connectors for external antennas 2
SMA antenna connector
Ethernet interface
4 x RJ-45 10 / 100 Mbps
Digital input/output
1/1
Scope of delivery
The following components ship with the product:
●One device
●A 5-pin terminal block for the power supply
●A 2-pin terminal block for the digital output
●A 2-pin terminal block for the digital input
●Product CD
Note
Not included with the product
The following components do not ship with the product:
•
KEY-PLUG / C-PLUG
You will find more detailed information in "C-PLUG and KEY-PLUG (Page 20)".
•
Antennas
You will find more detailed information in "Accessories (Page 13)".
•
SIM card
Use the SIM card from the chosen mobile wireless provider

Description of the device
1.1 Product characteristics
SCALANCE M874, M876
Operating Instructions, 07/2014, C79000-G89760-C331-03 11
Order numbers
Type
Order number
Description
SCALANCE M876-3 6GK5876-3AA02-2BA2 Mobile wireless router for 3G
with antenna diversity

Description of the device
1.2 Unpacking and checking
SCALANCE M874, M876
12 Operating Instructions, 07/2014, C79000-G89760-C331-03
1.2
Unpacking and checking
Unpacking and checking
WARNING
Do not use any parts that show evidence of damage
If you use damaged parts, there is no guarantee that the device will function according to
the specification.
If you use damaged parts, this can lead to the following problems:
•Injury to persons
•Loss of the approvals
•Violation of the EMC regulations
Use only undamaged parts.
1. Make sure that the package is complete.
2. Check all the parts for transport damage.

Description of the device
1.3 Accessories
SCALANCE M874, M876
Operating Instructions, 07/2014, C79000-G89760-C331-03 13
1.3
Accessories
You will find further information on the accessories program for the M874 in the Industry Mall
(https://eb.automation.siemens.com/goos/WelcomePage.aspx?regionUrl=/en&language=en)
.
Antennas
Type
Properties
Order number
ANT 794-3M Flat antenna for GSM networks, for tri-band
with 900 / 1800 / 1900 MHz; weatherproof for
indoor and outdoor areas; 1.2 m connecting
cable connected permanently to the antenna;
SMA connector, including adhesive mounting
tape
6NH9870-1AA00
ANT794-4MR Omnidirectional antenna for GSM and UMTS
networks. For GSM with 850 / 900 / 1800 /
1900 MHz and for UMTS with 850 / 900 / 1800 /
1900 / 2200 MHz; omnidirectional;
weatherproof for indoor and outdoor areas; 5 m
connecting cable connected permanently to the
antenna; SMA connector, including installation
bracket, screws, wall plugs
6NH9860-1AA00

Description of the device
1.4 LED display
SCALANCE M874, M876
14 Operating Instructions, 07/2014, C79000-G89760-C331-03
1.4
LED display
1.4.1
SCALANCE M874-2, M874-3
LED
Status
Meaning
F OFF No fault/error.
ON
The device is starting up or an error has occurred.
Possible errors/faults:
•Wrong PIN number
Flashing The bootloader waits in this state for a new firmware file that you can
download using TFTP.
L OFF Device turned off, no power supply.
ON Device turned on, power supply present.

Description of the device
1.4 LED display
SCALANCE M874, M876
Operating Instructions, 07/2014, C79000-G89760-C331-03 15
LED
Status
Meaning
SC OFF SIM card OK, no connection.
ON Wrong PIN number / SIM card error
ON Connection established
Q OFF No reception
Signal strength: < -109 dBm
Flashing Signal strength poor: -89 dBm to -109 dBm
On Signal strength medium: -73 dBm to -89 dBm
ON Signal strength good: > -73 dBm
OFF
VPN not established
ON VPN established
P1/P2 OFF Ethernet connection to local computer or LAN not established
ON Ethernet connection to local computer or LAN established
ON Device receiving / sending data
DI OFF Digital input inactive
ON Digital input active.
DO OFF Digital output inactive
ON Digital output active.

Description of the device
1.4 LED display
SCALANCE M874, M876
16 Operating Instructions, 07/2014, C79000-G89760-C331-03
1.4.2
SCALANCE M876-3
LED
Status
Meaning
F OFF No fault/error.
ON The device is starting up or an error has occurred.
Possible errors/faults:
•Wrong PIN number
Flashing The bootloader waits in this status for a new firmware file that you can
download using TFTP.
L OFF Device turned off, no power supply.
ON Device turned on, power supply present.

Description of the device
1.4 LED display
SCALANCE M874, M876
Operating Instructions, 07/2014, C79000-G89760-C331-03 17
LED
Status
Meaning
SC OFF SIM card OK, no connection.
ON Wrong PIN number / SIM card error
ON Connection established
Q OFF No reception
Signal strength: < -109 dBm
Flashing Signal strength poor: -89 dBm to -109 dBm
On Signal strength medium: -73 dBm to -89 dBm
ON Signal strength good: > -73 dBm
OFF
VPN not established
ON VPN established
P1
P2
P3
P4
OFF
Ethernet connection to local computer or LAN not established
ON Ethernet connection to local computer or LAN established
ON Device receiving / sending data
DI OFF Digital input inactive
ON Digital input active.
DO OFF Digital output inactive
ON Digital output active.

Description of the device
1.5 SET button
SCALANCE M874, M876
18 Operating Instructions, 07/2014, C79000-G89760-C331-03
1.5
SET button
With a SCALANCE M-800, the SET button is on the front of the housing beside the LED
display.
The SET button has the following functions:
●Restart
Hold down the button for longer than 3 seconds to run a restart.
●Loading new firmware
If the normal procedure with the "Load & Save" menu of Web Based Management does
not work, the reset button can be used to load new firmware. This situation can occur if
there is a power outage during the normal firmware update.
–Hold down the button until the red fault LED (F) starts to flash after approximately 3
seconds.
–Now release the button. The bootloader waits in this status for a new firmware file that
you can download using TFTP.
You will find more information in the section "Service and Maintenance" in the
SCALANCE M-800 Web Based Management configuration manual.

Description of the device
1.5 SET button
SCALANCE M874, M876
Operating Instructions, 07/2014, C79000-G89760-C331-03 19
●Reset to factory defaults
–Hold down the button until the red fault LED (F) stops flashing after approximately 10
seconds and is permanently lit.
–Now release the button and wait until the fault LED (F) goes off again. The device then
starts automatically with the factory settings and can be reached via the IP address
192.168.1.1.
You will find more information in the section "Service and Maintenance" in the
SCALANCE M-800 Web Based Management configuration manual.

Description of the device
1.6 C-PLUG and KEY-PLUG
SCALANCE M874, M876
20 Operating Instructions, 07/2014, C79000-G89760-C331-03
1.6
C-PLUG and KEY-PLUG
How it works
The C-PLUG or KEY-PLUG is used to transfer the configuration of the old device to the new
device when a device is replaced.
NOTICE
Do not remove or insert a C-PLUG / KEY-PLUG during operation!
A PLUG may only be removed or inserted when the device is turned off.
The device checks whether or not a PLUG is present at one second intervals. If it is
detected that the PLUG was removed, there is a restart.
If a valid KEY-PLUG was inserted in the device, the device changes to a defined error state
following the restart.
When the new device starts up with the PLUG, it then continues automatically with exactly
the same configuration as the old device. One exception to this can be the IP configuration if
it is set over DHCP and the DHCP server has not been reconfigured accordingly.
A reconfiguration is necessary if you use functions based on MAC addresses.
If an incorrect PLUG, for example from another product or a damaged PLUG is inserted, the
device signals an error with the "F" LED.
You can either remove the PLUG again or select the option to reformat the PLUG.
In terms of the PLUG, devices work in two modes:
●Without PLUG
The device stores the configuration in internal memory. This mode is active when no
PLUG is inserted.
●With PLUG
The configuration stored on the PLUG is displayed in WBM in "Information > PLUG". If
changes are made to the configuration, the device stores the configuration directly on the
PLUG and in the internal memory. This mode is active as soon as a PLUG is inserted. As
soon as the device is started with a PLUG inserted, the device starts up with the
configuration data on the PLUG.