EUCHNER MBM-PN MLI Series User manual

EN
Operating Instructions
Bus Module
MBM-PN-..-MLI-… (PROFINET)

Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
2(translation of the original operating instructions) MAN20001572-01-07/22
Contents
1. About this document............................................................................................. 5
1.1. Scope............................................................................................................................................5
1.1.1. Notes on older product versions ......................................................................................5
1.2. Target group ..................................................................................................................................5
1.3. Key to symbols...............................................................................................................................5
1.4. Supplementary documents ..............................................................................................................5
2. Correct use .......................................................................................................... 6
3. Description of the safety function .......................................................................... 7
3.1. Safety functions in combination with an interlocking or locking module MGB2-I or MGB2-L....................7
3.2. Safety functions on submodules with emergency stop .......................................................................8
3.3. Safety functions on submodules with enabling switch ........................................................................9
3.4. Safety functions on submodules with safe pushbuttons and switches (general) ....................................9
3.5. Determining safety characteristics of the overall system..................................................................10
3.5.1. Calculation example for the “monitoring of guard locking” safety function .........................10
3.5.2. Calculation example for the “emergency stop” safety function .........................................10
4. Exclusion of liability and warranty ....................................................................... 11
5. General safety precautions ................................................................................. 11
6. Function and system overview............................................................................. 12
6.1. Bus module MBM..........................................................................................................................12
6.2. Interlocking/locking module MGB2-I/MGB2-L...................................................................................12
6.3. Expansion modules MCM...............................................................................................................13
6.4. Submodules MSM.........................................................................................................................13
6.5. Dimension drawing for bus module MBM ........................................................................................13
7. Mounting............................................................................................................ 14
8. Protection against environmental effects............................................................. 14
9. Controls and indicators ....................................................................................... 15
9.1. DIP switches ................................................................................................................................15
9.2. LED displays ................................................................................................................................15
10. Electrical connection .......................................................................................... 16
10.1. Notes about .........................................................................................................................16
10.2. Bus connections...........................................................................................................................17
10.2.1. Terminal assignment for version with push-pull plugs........................................................17
10.3. MLI connections ...........................................................................................................................18
10.3.1. Direct mounting ............................................................................................................18
10.3.2. Remote mounting..........................................................................................................19
10.4. Connecting modules .....................................................................................................................20

3
MAN20001572-01-07/22 (translation of the original operating instructions)
Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
EN
11. Setup ................................................................................................................. 21
11.1. Teach-in operation ........................................................................................................................21
11.2. Overview of the communication data..............................................................................................21
11.3. Information on the supplementary data sheets ................................................................................22
11.4. System layout and layout of the data areas in the control system .....................................................23
11.5. PROFINET data bytes....................................................................................................................25
11.6. PROFIsafe data bytes....................................................................................................................25
11.6.1. Data block for PROFIsafe...............................................................................................25
11.7. Integrating into PROFINET and PROFIsafe .......................................................................................26
11.8. Conguring and setting parameters for modules and submodules ....................................................27
11.8.1. Combining modules and submodules..............................................................................27
11.8.2. List of the parameters that can be set per module/submodule .........................................30
11.9. Line swap ....................................................................................................................................31
11.10. Replacing submodules ..................................................................................................................31
11.11. Replacing modules........................................................................................................................32
11.12. Saving conguration .....................................................................................................................32
12. Overview of data blocks for modules and submodules.......................................... 33
12.1. Data blocks for bus module MBM...................................................................................................33
12.1.1. Safe bits ......................................................................................................................33
12.1.2. Non-safe bits ................................................................................................................33
12.2. Data blocks for interlocking/locking module MGB2-I / MGB2-L .........................................................34
12.2.1. Safe bits ......................................................................................................................34
12.2.2. Non-safe bits ................................................................................................................34
12.3. Data blocks for expansion module MCM .........................................................................................35
12.3.1. Safe bits ......................................................................................................................35
12.3.2. Non-safe bits ................................................................................................................35
12.4. Data blocks for submodules ..........................................................................................................36
12.5. Replacing a bus module MBM without programming device..............................................................36
12.6. Handle module teach-in operation (only for systems with locking module MGB2 unicode) ...................36
13. Diagnostics, troubleshooting and aids.................................................................. 37
13.1. Reset and restart..........................................................................................................................37
13.2. Acknowledging errors ...................................................................................................................37
13.3. Resetting system to factory settings (factory reset).........................................................................37
13.4. Diagnostics with the aid of the device web interface........................................................................38
13.4.1. Using device web interface............................................................................................38
13.5. General errors..............................................................................................................................40
13.6. Teach-in errors and conguration errors..........................................................................................41
13.7. Transponder errors.......................................................................................................................42
13.8. Environment errors .......................................................................................................................42
13.9. Communication errors...................................................................................................................44
13.10. Plausibility errors ..........................................................................................................................45

Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
4(translation of the original operating instructions) MAN20001572-01-07/22
13.11. Submodule errors.........................................................................................................................46
13.12. PROFINET errors ..........................................................................................................................46
13.13. PROFISAFE errors.........................................................................................................................47
14. Technical data .................................................................................................... 49
14.1. Calculation example for determining the risk time for safe functions .................................................50
15. Service .............................................................................................................. 51
16. Inspection and service ........................................................................................ 51
17. Declaration of conformity ................................................................................... 52

5
MAN20001572-01-07/22 (translation of the original operating instructions)
Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
EN
1. About this document
1.1. Scope
This document is valid for all bus modules MBM-PN-..-MLI-… (PROFINET). It serves as a system and conguration manual
for all module combinations that can be operated with this bus module.
These operating instructions, the document Safety information, the operating instructions for the modules connected and
any supplementary data sheets form the complete user information for your system.
Series Output family Module connection type Product versions
MBM-… …-PN-… …-MLI-… V2.0.X
1.1.1. Notes on older product versions
Products with lower product versions or without a version number are not described by these operating instructions. Please
contact our support team in this case.
1.2. Target group
Design engineers and installation planners for safety systems on machines, as well as setup and servicing staff possessing
special expertise in handling safety components as well as expertise in the installation, setup, programming and diagnostics
of programmable logic controllers (PLCs) and bus systems.
1.3. Key to symbols
Symbol/depiction Meaning
Printed document
Internet
www Document is available for download at www.euchner.com
DANGER
WARNING
CAUTION
Safety precautions
Danger of death or severe injuries
Warning about possible injuries
Caution Slight injuries possible
NOTICE
Important!
Notice about possible device damage
Important information
Tip Useful information
1.4. Supplementary documents
The overall documentation for this device consists of the following documents:
Document title
(document number) Contents
Safety information
(2525460) Basic safety information
Operating instructions
(MAN20001572) (this document)
Internet
www
Operating instructions for
the connected modules
and their submodules
Device-specic information for the related module and the installed submodules
Internet
www
Possibly enclosed data
sheets Item-specic information about deviations or additions
Important!
Always read all documents to gain a complete overview of safe installation, setup and use of the
device. The documents can be downloaded from www.euchner.com. For this purpose enter the doc.
no. in the search box.

Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
6(translation of the original operating instructions) MAN20001572-01-07/22
2. Correct use
The bus module MBM-PN-..-MLI-… (PROFINET) is operated as an IO device on PROFINET (PROFIsafe). The bus module MBM
communicates with the modules/submodules connected and evaluates all relevant information. It processes these data and
then transmits them on the bus connected to a control system.
Before the device is used, a risk assessment must be performed on the machine, e.g. in accordance with the following
standards:
ÌENISO13849-1
ÌENISO12100
ÌENIEC62061
Correct use includes observing the relevant requirements for installation and operation, particularly based on the following
standards:
ÌENISO13849-1
ÌENISO14119
ÌEN60204-1
The bus module MBM is allowed to be combined only with suitable modules that have an MLI interface. You will nd more
detailed information on compatibility in the operating instructions for the related MLI device. See also Table 1: Combination
options for modules with MLI technology. A maximum of 18 modules or submodules can be operated on one bus module MBM.
On the unauthorized modication of system components, EUCHNER provides no warranty for function.
The customer is responsible for the safe overall function, especially for the safe integration into the PROFIsafe environment.
Important!
ÌThe user is responsible for the proper integration of the device into a safe overall system. For this
purpose, the overall system must be validated, e.g. in accordance with ENISO13849-2.
ÌCorrect use requires observing the permissible operating parameters (see chapter 14. Technical
data On page 49).
ÌIf a data sheet is included with the product, the information on the data sheet applies.
Table 1: Combination options for modules with MLI technology
Bus module Base units
Handle module Submodules Submodules Submodules
MGB2-H-…
from V1.0.0
MSM-.-P-…
MSM-.-R-…
MSM-.-N-…
MSM-.-E-… MSM-.-K-…
MBM-…-MLI
from V2.0.0
Interlocking/locking module
MGB2-I..-MLI/MGB2-L..-MLI
from V1.4.0
- -
Expansion module
MCM-…-MLI - -
Key to symbols
Combination possible
- Combination not possible

7
MAN20001572-01-07/22 (translation of the original operating instructions)
Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
EN
3. Description of the safety function
The safety function of the bus module MBM comprises evaluating the safety data transmitted from the overall system (e.g.
from installed guard locking devices, emergency stop devices, enabling switches, etc.) and forwarding these data on a
bus system connected. The number of safe devices in an overall system is limited to 12. Depending on the modules and
submodules connected, the overall system can include the following safety functions:
3.1. Safety functions in combination with an interlocking or locking module MGB2-I or
MGB2-L
The following applies to the MGB2-L…:
Monitoring of guard locking and the position of the guard
(interlocking device with guard locking according to ENISO14119)
ÌSafety function:
- If guard locking is released, safety bit LM_FI_UK (ÜK)=0 (monitoring of the locking element).
- When the guard is open, safety bit LM_FI_SK (SK)=0 (monitoring of the position of the guard).
- Guard locking can be activated only when the bolt tongue is located in the locking module (prevention of inadvertent
locking position (faulty closure protection)).
PFHD, Sys
PFHD, MBM
PFHD, MGB2-L
Guardlocking
Device
MGB2-L...
Busmodule
MBM
EUCHNER ModuleLink-System (MLI)
Safetybit LM_FI_UK
(Guardlock monitoring) Failsafe
PLC
ÌSafety characteristics:
category, Performance Level, PFHD
Control of guard locking (safety bit LM_FO_CL)
ÌSafety function:
- If the device is used as guard locking for personnel protection, control of guard locking must be regarded as a safety
function.
The safety level of guard locking control is determined by the system PFHDsys. and by the external control (e.g. safe
PLC).
Failsafe
PLC
PFHD, Sys
Guardlocking
Device
MGB2-L...
Busmodule
MBM
EUCHNER ModuleLink-System (MLI)
Safetybit LM_FO_CL
(Guardlocking)
PFHD, MBM PFHD, MGB2-L
ÌSafety characteristics of the bus module and the locking module:
category, Performance Level, PFHD

Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
8(translation of the original operating instructions) MAN20001572-01-07/22
The following applies to the MGB2-I… (or a correspondingly congured MGB2-L2):
Monitoring of the guard position
(interlocking device according to ENISO14119)
ÌSafety function: When the guard is open, safety bit LM_FI_SK (SK)=0 (see chapter 12.2. Data blocks for interlocking/
locking module MGB2-I / MGB2-L).
PFHD, Sys
PFHD, MBM
PFHD, MGB2-I
Interlocking
Device
MGB2-I...
Busmodule
MBM
EUCHNER ModuleLink-System (MLI)
Safetybit LM_FI_SK
(Interlock monitoring) Failsafe
PLC
ÌSafety characteristics:
category, Performance Level, PFHD
(you will nd the reliability values according to EN13849-1 in the technical data).
3.2. Safety functions on submodules with emergency stop
Emergency stop
(emergency stop device according to ENISO13850)
ÌSafety function: evaluation of emergency stop
ÌSafety characteristics: B10D value of the emergency stop in the submodule (MSM) and PL, PFHD, category and DC for
the evaluation electronics (MLI modules) and the bus module (MBM)
PFHD, Sys
PFHD, MBM
PFHD, Module
MLI-Module
(e.g. Interlocking
Device MGB2-L...)
Busmodule
MBM
EUCHNER ModuleLink-System (MLI)
Safetybit SM_FI_ES
(Emergency Stop)
B10D
Submodule
MSM with
Emergency
Stop
Failsafe
PLC

9
MAN20001572-01-07/22 (translation of the original operating instructions)
Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
EN
3.3. Safety functions on submodules with enabling switch
Enabling function
ÌSafety function: evaluation of a connected enabling switch
ÌSafety characteristics: B10D value for the enabling switch (see operating instructions for the enabling switch) and PL,
PFHD, category and DC for the evaluation electronics (MLI modules) and the bus module (MBM)
PFHD, Sys
PFHD, MBM PFHD, Module
MLI-Module
(e.g. Interlocking
Device MGB2-L...)
Busmodule
MBM
EUCHNER ModuleLink-System (MLI)
Safetybit
SM_FI_EN
(Enabling switch)
Submodule
MSM
B10D
Enabling
switch
Failsafe
PLC
3.4. Safety functions on submodules with safe pushbuttons and switches (general)
Detection of the switch position
ÌSafety function: evaluation of the switch position
ÌSafety characteristics: B10D value for the safe pushbutton or switch in the submodule (MSM) and PL, PFHD, category
and DC for the evaluation electronics (MLI modules) and the bus module (MBM)
PFHD, Sys
PFHD, MBM
PFHD, Module
MLI-Module
(e.g. Interlocking
Device MGB2-L...)
Busmodule
MBM
EUCHNER ModuleLink-System (MLI)
Safetybit of the
switching function
B10D
Submodule
MSM with
Safe switch
Failsafe
PLC

Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
10 (translation of the original operating instructions) MAN20001572-01-07/22
3.5. Determining safety characteristics of the overall system
The corresponding reliability values must be determined for each safety function in the overall system. Proceed as follows:
1. Refer to the data sheets or operating instructions for the system components containing the function for information on
the reliability values for the related safety function.
2. Refer to the reliability value of the bus module MBM for the evaluation and forwarding of safety data.
3. Add together the values to a resulting reliability value PFHD, Sys.
3.5.1. Calculation example for the “monitoring of guard locking” safety function
PFHD, Sys = PFHD, MGB2-L + PFHD, MBM
PFHD, Sys
PFHD, MBM PFHD, MGB2-L
Guardlocking
Device
MGB2-L...
Busmodule
MBM
EUCHNER ModuleLink-System (MLI)
Safetybit LM_FI_UK
(Guardlock monitoring) Failsafe
PLC
3.5.2. Calculation example for the “emergency stop” safety function
PFHD, Sys = PFHD, MSM device + PFHD, MGB2-L + PFHD, MBM
To calculate the PFHD, MSM device from the B10Dvalue, use the method in annex C 4.2 of ENISO13849-1:2016.
The following applies: PFHD, Sys = f (categoryMBM; DCMBM; B10D; nop)
PFHD, Sys
PFHD, MBM
PFHD, MGB2-L
MGB2-L... Busmodule
MBM
Submodule
MSM
with
B10D-Device
EUCHNER ModuleLink-System (MLI)
Safetybit SM_FI_ES
(e.g. Emergency Stop)
PFHD, MSM-Device
Failsafe
PLC

11
MAN20001572-01-07/22 (translation of the original operating instructions)
Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
EN
4. Exclusion of liability and warranty
In case of failure to comply with the conditions for correct use stated above, or if the safety regulations are not followed,
or if any servicing is not performed as required, liability will be excluded and the warranty void.
5. General safety precautions
Safety switches fulll personnel protection functions. Incorrect installation or tampering can lead to fatal injuries to personnel.
Check the safe function of the safeguard and, if necessary, other safety functions particularly
Ìafter any setup work
Ìafter every replacement of a component relevant to safety (also after rotating a submodule)
Ìafter an extended period without use
Ìafter every fault
Ìafter any change to the DIP switch settings
Ìafter every factory reset
Independent of these checks, the safe function of the safeguard should be checked at suitable intervals as part of the
maintenance schedule.
WARNING
Danger to life due to improper installation or due to bypassing (tampering). Safety components fulll
a personnel protection function.
ÌSafety components must not be bypassed, turned away, removed or otherwise rendered ineffec-
tive. On this topic pay attention in particular to the measures for reducing the possibility of bypass-
ing according to ENISO14119:2013, section 7.
ÌMounting, electrical connection and setup only by authorized personnel possessing the following
knowledge:
- specialist knowledge in handling safety components
- knowledge about the applicable EMC regulations
- knowledge about the applicable regulations on operational safety and accident prevention.
Important!
Prior to use, read the operating instructions and keep these in a safe place. Ensure the operating
instructions are always available during mounting, setup and servicing. You can download the operating
instructions from www.euchner.com.

Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
12 (translation of the original operating instructions) MAN20001572-01-07/22
6. Function and system overview
An MLI system comprises at least the following components:
ÌOne bus module MBM
ÌOne module with MLI connection (e.g. interlocking or locking modules MGB2 or expansion modules MCM)
Modules can in turn contain submodules. Fig. 1 shows a typical system layout with one bus module MBM (1), one locking
module MGB2-L... (2) and the submodules MSM (3) installed in it. A full system can comprise up to 18 modules or submodules.
1
2
3
Fig. 1: Example system MGB2 Modular
6.1. Bus module MBM
Bus modules MBM have the following tasks:
ÌGateway to the bus connected
ÌCentral unit for control, evaluation and communication for the MLI modules connected
ÌCentral power supply for the MLI modules connected
ÌIRT switch
ÌDiagnostics server
6.2. Interlocking/locking module MGB2-I/MGB2-L
Together with a handle module, the interlocking module makes it possible to interlock movable guards. Together with a
handle module, the locking module makes it possible to lock movable guards.
Interlocking/locking modules contain slots for submodules that provide additional functions.
For the exact functional description, refer to the operating instructions for your interlocking/locking module and the sup-
plementary data sheets.

13
MAN20001572-01-07/22 (translation of the original operating instructions)
Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
EN
6.3. Expansion modules MCM
Expansion modules MCM have space for up to four submodules. In this way even more extensive control tasks can be realized.
6.4. Submodules MSM
Submodules MSM can be installed in modules that have one or more submodule slots. Using the submodules, it is possible
to install additional functions in the modules. Typical function expansions include, e.g. emergency stop, pushbuttons, selector
switches and indicators. For a detailed functional description, refer to the data sheet of the respective submodule.
6.5. Dimension drawing for bus module MBM
4
93
155
25 15
6,3
75
100
A
A
B
B
25,6
12 max.
12 max.
A-A
B-B
52,5
M6

Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
14 (translation of the original operating instructions) MAN20001572-01-07/22
7. Mounting
8. Protection against environmental effects
A lasting and correct safety function requires that the system must be protected against foreign bodies such as swarf, sand,
blasting shot, etc., which can become lodged in the housing.
Pay attention to the following measures:
ÌSeal unused connections using the covers provided.
ÌMake sure the housing covers are correctly sealed and the cover screws are tightened to the necessary tightening
torque.
ÌCover the device during painting work.

15
MAN20001572-01-07/22 (translation of the original operating instructions)
Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
EN
9. Controls and indicators
9.1. DIP switches
The DIP switches have the following functions:
ÌSetting the device’s PROFIsafe address
ÌHardware reset to restore the device to the factory settings
ÌActivating the device web interface
A0 RST
OFF ON
12345678910 11 12
ON CTS
Default: 000
00‘0000‘0000
WWW A1A2A3A4A5A6A7A8A9
Switch Description
A0 … A9
Address switch, bits zero to nine
For binary setting of the PROFIsafe address
(factory setting: 0000000000)
RST
Factory reset
(factory setting: off)
For information on the factory reset, see
chapter 13.3 on page 37.
WWW
Activate device web interface with extended
diagnostic options.
(factory setting: off)
For information on the device web interface,
see chapter 13.4 on page 38.
9.2. LED displays
The LEDs indicate the device status and the communication status.
LED Description
Bus module MBM
LINK 1
Connection correct: statically On
PROFINET device localization: ashing
Color: green
ACT 1
Connection setup: ashing
Color: yellow
Connection setup complete, cyclical data trafc: statically On
Color: yellow
LINK 2
Connection correct: statically On
PROFINET device localization: ashing
Color: green
ACT 2
Connection setup: ashing
Color: yellow
Connection setup complete, cyclical data trafc: statically On
Color: yellow
SF
System fault:
statically On (see chapter 13. Diagnostics, troubleshooting and aids)
Color: red
BF
Bus fault:
statically On (see chapter 13. Diagnostics, troubleshooting and aids)
Color: red
DIA Indicates errors
Color: red
US1
Power Up: ashing
Normal state: statically On
Color: green
MAINT Indicates the error ashing code
Color: red/green/yellow
PS
Normal state: statically On
Device passivated: ashing
Control system communication error: ashing
Color: green

Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
16 (translation of the original operating instructions) MAN20001572-01-07/22
10. Electrical connection
WARNING
In the event of a fault, loss of the safety function due to incorrect connection.
ÌMounting must be performed only by authorized personnel.
ÌLay the connecting cables with protection to prevent the risk of short circuits.
CAUTION
Risk of damage to equipment or malfunctions as a result of incorrect connection.
ÌAll the electrical connections must either be isolated from the mains supply by a safety transform-
er according to ENIEC61558-2-6 with limited output voltage in the event of a fault, or by other
equivalent insulation measures.
ÌMetal plugs must be used for the power supply via push-pull plugs.
ÌPower devices which are a powerful source of interference must be installed in a separate location
away from the input and output circuits for signal processing. The cable routing for safety circuits
should be as far away as possible from the cables of the power circuits.
ÌIn order to avoid EMC interference, follow the EMC notes on devices in the immediate vicinity of
the system and its cables.
ÌTo avoid EMC interference, the physical environmental and operating conditions at the in-
stallation site of the device must comply with the requirements according to the standard
DINEN60204-1:2006, section 4.4.2/EMC.
ÌThe functional earth must be connected. A bore hole with M6 thread is provided on the mount-
ing plate for this purpose. Alternatively, the functional earth can also be connected via plugs XD1
and XD2 (5-pin). We recommending connecting the functional earth to the mounting plate.
Important!
ÌThe power supply for additional PROFINET devices may be forwarded via the bus module MBM.
The total supply current through the system must not be higher than specied in the technical
data.
ÌThe total current consumption of all connected modules and submodules (including MBM) must not
exceed the value specied in the technical data. Refer to the technical data of the respective de-
vice for information about the current consumption of the individual modules and submodules.
ÌIf the bus module MBM does not appear to function after the application of the operating voltage
(e.g. Power LED does not illuminate), the device must be returned unopened to the manufacturer.
ÌTo ensure the stated degree of protection is achieved, the cover screws must be tightened to a
tightening torque of 1 Nm. Unused connections must be tted with the covers provided.
10.1. Notes about
Important!
ÌThis device is intended to be used with a Class 2 power source in accordance with UL1310 1).
As an alternative an LV/C (Limited Voltage/Current) power source with the following properties can
be used:
- This device shall be used with a suitable isolating source in conjunction with a fuse in accordance
with UL248. The fuse shall be rated max. 3.3A and be installed in the max. 30VDC power supply
to the device in order to limit the available current to comply with the UL requirements. Please note
possibly lower connection ratings for your device (refer to the technical data).
1) Note on the scope of the UL approval: only for applications as per NFPA 79 (Industrial Machinery).
The devices have been tested as per the requirements of UL508 and CSA/ C22.2 no. 14 (protection against electric shock and re).

17
MAN20001572-01-07/22 (translation of the original operating instructions)
Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
EN
10.2. Bus connections
The bus module MBM includes the PROFINET connections (XF1 and XF2) and the power supply connections (XD1 and XD2).
Depending on version, connection is via
Ìpush-pull plugs according to IEC61076-3-117, variant 14
The bus module MBM includes a PROFINET IRT switch for Ethernet connection.
10.2.1. Terminal assignment for version with push-pull plugs
XF1 PN1 XF2 PN2 XD2 DC24V XD1 DC24
V
1
RJ45
1234
51
2345
81 8
Pin Description
XF1.1 Receive Data RD+
XF1.2 Receive Data RD-
XF1.3 Transmit Data TD+
XF1.4 n.c.
XF1.5 n.c.
XF1.6 Transmit Data TD-
XF1.7 n.c.
XF1.8 n.c.
Functional earth on plug housing
Pin Description
XF2.1 Receive Data RD+
XF2.2 Receive Data RD-
XF2.3 Transmit Data TD+
XF2.4 n.c.
XF2.5 n.c.
XF2.6 Transmit Data TD-
XF2.7 n.c.
XF2.8 n.c.
Functional earth on plug housing
Pin Description
XD1.1 L1 operating voltage DC24V
XD1.2 N1 operating voltage 0V
XD1.3 L2 auxiliary voltage1) DC24V
XD1.4 N2 auxiliary voltage1) 0V
XD1.5 Functional earth2)
Pin Description
XD2.1 L1 operating voltage DC24V
XD2.2 N1 operating voltage 0V
XD2.3 L2 auxiliary voltage1) DC24V
XD2.4 N2 auxiliary voltage1) 0V
XD2.5 Functional earth2)
1) The auxiliary voltage is not required for the MGB2
system.
2) Optional; we recommend using the FE connection on
the mounting plate instead.

Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
18 (translation of the original operating instructions) MAN20001572-01-07/22
10.3. MLI connections
The MLI connections are used to connect modules to the bus module MBM. The sealing caps can be reordered (complete
set AC-SET-BP-M12, order no. 156739).
Connection Description
ML1D (direct plug) Module plug connector for direct mounting in a block.
Important! Use only for direct mounting.
ML1C (cable connect) Module plug connector for remote mounting (line 1).
ML2C (cable connect) Module plug connector for remote mounting (line 2).
10.3.1. Direct mounting
Pay attention to the following points on direct mounting:
ÌEnsure the modules are ush with each other. Excessively large distances will reduce the degree of protection achiev-
able. Caution: The modules are only loosely connected together.
ÌMake sure a sealing cap is tted to unused connections.
ÌMount each module on the mounting surface as stipulated.
Before direct mounting, the sealing cap must be removed from connection ML1D (see gure below).

19
MAN20001572-01-07/22 (translation of the original operating instructions)
Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
EN
10.3.2. Remote mounting
Pay attention to the following points on remote mounting:
ÌThe maximum cable length for a line must not exceed 40m.
ÌUp to 3 base units can be operated per line. If you require a different conguration, contact our technical support team.
ÌA maximum of 18 modules or submodules can be operated on one bus module MBM. Submodules count as one module
here. Attention is to be paid to the maximum permissible total current consumption (see 14. Technical data).
ÌThe number of safe devices in an overall system is limited to 12.
ÌAlways use the module plug connector ML1C, ML2C or both for remote mounting.
ÌLay the cable so that it is protected against damage as far as possible.
ÌMake sure a sealing cap is tted to unused connections.
ÌMake sure the connecting cables are correctly screwed into place to achieve the stated degree of protection.
Before remote mounting, the sealing cap must be unscrewed from connection ML1C. The sealing cap for connection ML1D
is used as a tool for this purpose (see gure below). On the use of a second line, the sealing cap ML2C must also be un-
screwed. Then the sealing cap for connection ML1D must be re-tted.
1
3
2

Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
20 (translation of the original operating instructions) MAN20001572-01-07/22
10.4. Connecting modules
Modules can either be connected together directly or using cables (see Fig. 2: Connecting modules).
Each module has a top and a bottom connection. You can use either the bottom or the top connection or both if the module
is between two other modules.
The bottom module connector is already integrated. To use the top connection, change its position. If you want to use both
connections, you must order a corresponding module connector. Use only the module connectors intended to interconnect
the modules (see Table 2: Overview of module connectors). The maximum cable length for a line must not exceed 40 m.
156718
157025
next module
direct plug
blind plug
stacklight
M12, 5-pin,
male
M12, 5-pin,
female
157024
MGB2-L...
MCM-...
direct plug cable connect
157028
157029
stacklight
next module
cable connect
( M12, 5-pin,
female)
( M12, 8-pin,
female)
156718
157025
next module
direct plug
blind plug
157028 next module
cable connect
( M12, 5-pin,
female)
161345
Fig. 2: Connecting modules
Table 2: Overview of module connectors
Function Order no. Included?
Module connector M12, 5-pin, plug 157024 1x *
Blanking cover 156718 1x *
Set with sealing caps for unused connections 156739 Yes
Module connector, 5-pin socket, for the direct connection of a further module 157025
No, must be ordered separately
Module connector M12, 5-pin socket, for the connection of a further module via a
connecting cable 157028
Module connector M12, 5-pin socket, for the connection of a stack light 161345
Module connector M12, 8-pin socket, for the connection of a stack light 157029
Connecting cable M12, 5-pin See catalog or www.euchner.com
Connecting cable M12, 8-pin
* Not for MGB2-…-Y0000-…