EUCHNER MCM-MLI Series User manual

EN
Operating Instructions
Extension Module
MCM-MLI...
from V1.0.0

Operating Instructions Extension Module
MCM-MLI...
2(Translation of the original operating instructions) 2500236-02-12/19
Contents
1. About this document............................................................................................. 3
1.1. Scope............................................................................................................................................3
1.1.1. Notes on older product versions ......................................................................................3
1.2. Target group ..................................................................................................................................3
1.3. Key to symbols...............................................................................................................................3
1.4. Supplementary documents ..............................................................................................................3
2. Correct use .......................................................................................................... 4
3. Description of the safety function .......................................................................... 4
4. Exclusion of liability and warranty ......................................................................... 4
5. General safety precautions ................................................................................... 5
6. Function............................................................................................................... 6
6.1. Dimension drawing for extension module MCM..................................................................................6
7. Mounting.............................................................................................................. 7
7.1. Mounting modules ..........................................................................................................................7
7.2. Replacing modules..........................................................................................................................7
7.3. Mounting submodules .....................................................................................................................8
7.4. Replacing submodules ....................................................................................................................9
7.4.1. Replacing faulty submodule .............................................................................................9
7.4.2. Replacing submodule with a submodule with a different function (changing conguration) .....9
7.5. Fitting and removing lenses and labels for controls and indicators ....................................................10
8. Protection against environmental effects............................................................. 10
9. Controls and indicators....................................................................................... 11
9.1. LED displays ................................................................................................................................11
10. Electrical connection .......................................................................................... 11
10.1. Connecting modules .....................................................................................................................11
11. Setup ................................................................................................................. 13
11.1. System status table (module LEDs) ................................................................................................13
11.2. System status table (slot LEDs) .....................................................................................................14
12. Diagnostics, troubleshooting and aids.................................................................. 14
13. Technical data ................................................................................................... 15
14. Service .............................................................................................................. 16
15. Inspection and service ........................................................................................ 16
16. Declaration of conformity ................................................................................... 17

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2500236-02-12/19 (Translation of the original operating instructions)
Operating Instructions Extension Module
MCM-MLI...
EN
1. About this document
1.1. Scope
This document is valid for all extension modules MCM-MLI....
These operating instructions, the document “Safety information and maintenance,” the operating instructions for the modules
connected and any enclosed data sheets form the complete user information for your system.
Series Module connection type Product versions
MCM-... ...-MLI-... from V1.0.0
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
Operating instructions
(2500236) (this document)
Internet
www
Safety information and
maintenance (2500232) Information sheet with important safety information
Operating instructions for
the modules connected
and their submodules
Device-specic information for the related module and the submodules installed
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 Extension Module
MCM-MLI...
4(Translation of the original operating instructions) 2500236-02-12/19
2. Correct use
The extension module MCM offers space for additional submodules MSM and is used to expand MGB2 systems with MLI
interface.
Before the device is used in combination with a safety function, 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60204-1
ÌPossibly additional standards (depending on the submodules MSM used)
The extension module MCM-MLI may 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.
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 13. Technical
data on page 15).
ÌIf a data sheet is included with the product, the information on the data sheet applies.
3. Description of the safety function
The extension module MCM has the safety function of Evaluating submodules with safety function and forwarding the data
to the bus module MBM. If you use submodules MSM with safety function in the extension module, please observe the
description of the safety functions in the operating instructions for your bus module MBM and in any data sheet for your
submodule MSM.
4. Exclusion of liability and warranty
In case of failure to comply with the conditions for correct use stated above, or if the safety instructions are not followed,
or if any servicing is not performed as required, liability will be excluded and the warranty void.

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2500236-02-12/19 (Translation of the original operating instructions)
Operating Instructions Extension Module
MCM-MLI...
EN
5. General safety precautions
Additionally observe the safety precautions in the operating instructions for your bus module MBM.
WARNING
Danger to life due to improper installation or due to bypassing (tampering). Any contained safety
components fulll a personnel protection function.
ÌContained safety components must not be bypassed, turned away, removed or otherwise ren-
dered ineffective. On this topic pay attention in particular to the measures for reducing the possi-
bility of bypassing 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. For this reason you should
archive a printed copy of the operating instructions. You can download the operating instructions from
www.euchner.com.

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6. Function
Extension modules MCM have space for up to four submodules. In this way even more extensive control tasks can be realized.
Figure 1: Extension module MCM with two operating modules and two labeling modules on one bus module MBM.
6.1. Dimension drawing for extension module MCM
148
155
52,5
25
6,3
15
130
100
A
A
12 max.
25,5
A-A

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Operating Instructions Extension Module
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7. Mounting
7.1. Mounting modules
7.2. Replacing modules
CAUTION
Risk of damage to equipment or malfunction as a result of uncontrolled machine stop.
The communication within the system is interrupted by the replacement of a module, and the safe
bits are reset. If a process is running, this situation can result in an uncontrolled stop and damage to
the installation or the product.
ÌBefore replacement make sure the installation is in a suitable operating mode.
Modules (e.g. locking modules or extension modules) can be replaced only in combination with a restart of the overall
system. On the disconnection of the module connection, the system enters into a fault state. The affected module and all
downstream modules remain inactive (fault state) until the overall system is restarted.

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7.3. Mounting submodules
CAUTION
Risk of damage to equipment or malfunction as a result of incorrect connection or a conguration
change.
ÌOnly submodules of connection types P, R, E and N can be used. Check the compatibility before
installation. For information on the related connection type of a submodule, please refer to the
sticker on the rear of the submodule or the data sheet for the related submodule. This is included
with each submodule.
ÌPay attention to the alignment of the submodule. See marking (a) in Figure 2: Mounting submod-
ule. Submodules can also be installed rotated by 180°. The marking (a) always indicates the rst
position to be equipped. This means the position of pushbutton S1 in the example below.
ÌMake sure the pins on the submodule slide straight into the guide. Tighten the cover screws to 0.5
Nm.
ÌOn using a submodule with labeling elds, pay attention to the correct alignment of the modules in
relation to the labeling elds. Incorrect assignments can cause serious malfunctions in your instal-
lation.
ÌMake sure no foreign bodies, e.g. chips or wires, enter the open slots on the submodule. These
can cause short circuits or contact problems.
ÌAvoid touching the contacts on the underside of the submodule. Risk of ESD damage and contact
problems due to soiling.
ÌUnused submodule slots must be tted with a cover (e.g. order number 126372).
Pos. 1
Pos. 2
Pos. 3
a
Figure 2: Mounting submodule

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Operating Instructions Extension Module
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7.4. Replacing submodules
CAUTION
Risk of damage to equipment or malfunction as a result of uncontrolled machine stop.
The communication within the system is interrupted by the replacement of a submodule, and the safe
bits are reset. If a process is running, this situation can result in an uncontrolled stop and damage to
the installation or the product.
ÌBefore replacement make sure the installation is in a suitable operating mode.
NOTICE
Pay attention to the information on the replacement of a submodule in the operating instructions for
the related module. On submodules with a safety function, the correct function must be tested after
replacement before the system enters normal operation again.
Submodules MSM can be replaced during operation as well (pay attention to safety note above). As soon as the system
detects a correct submodule, the submodule is ready for operation. The system reacts as follows on a replacement:
1. If the submodule MSM is removed, the SLOT LED illuminates red, interrupted by 1x green ash. In addition, the SF LED
on the bus module MBM illuminates red
2. If the submodule MSM contains a safety function, the related bit on the bus is cleared as soon as the submodule has
been removed
3. If an identical submodule is inserted with the same alignment, the fault display goes out and the bit is transmitted on the
bus again to suitthe actual situationthe actual situation.
7.4.1. Replacing faulty submodule
A submodule should be replaced during operation.
Important!
If alignment detection is active, the system checks the alignment of the newly inserted submodule
and compares it to the submodule inserted last. The alignment of the previous submodule must be
retained in this situation because otherwise the conguration of the device will change. If a conguration
change is required, pay attention to the sequence in 7.4.2. Replacing submodule with a submodule
with a different function (changing conguration). You will nd information on switching on and off the
alignment detection in the operating instructions for your bus module MBM.
7.4.2. Replacing submodule with a submodule with a different function (changing conguration)
The system saves the last conguration of your system.
The conguration changes if
ÌYou replace a submodule with a submodule with a different function or
ÌYou t the same submodule rotated by 180°.
Adapt the conguration in the conguration software for your control system.
Then the new conguration must be taught-in by restarting the bus module MBM. You will nd further information in the
operating instructions for your bus module MBM.

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7.5. Fitting and removing lenses and labels for controls and indicators
1 2
23
90°
Click!
1
Fitting
Removing
Lens
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.

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9. Controls and indicators
9.1. LED displays
The LEDs indicate the device status and the communication status. An exact description of the indicators and faults can be
found in section 11. Setup.
LED Description
Extension module MCM
POWER/FC
Combined indication
Power: illuminated with correct power supply
FC (fault code): ashes 1 x to indicate MLI connection faults
Color: green
STATE/DIA
Combined indication
STATE: indicates the device state
Color: green
DIA: indicates faults
Color: red
SLOT 1 ...4 Indicates the status of the submodule
Color: red/green
10. Electrical connection
Important!
Pay attention to the instructions on electrical connection in the operating instructions for your bus
module MBM.
10.1. Connecting modules
Modules can either be connected together directly or using cables (see Figure 3: 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 1: Overview of module connectors). The maximum cable length for a line must not exceed 20 m.

Operating Instructions Extension Module
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12 (Translation of the original operating instructions) 2500236-02-12/19
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
Figure 3: Connecting modules
Table 1: Overview of module connectors
Function Order no. Included?
Module connector M12, 5-pin, male 157024 1x
Blanking cover 156718 1x
Set with sealing caps for unused connections 156739 Yes
Module connector, 5-pin socket, for the direct connec-
tion of a further module 157025
No, must be ordered separately
Module connector M12, 5-pin socket, for the connec-
tion of a further module via a connecting cable 157028
Module connector M12, 5-pin socket, for the connec-
tion of a stacklight 161345
Module connector M12, 8-pin socket, for the connec-
tion of a stacklight 157029
Connecting cable M12, 5-pin See catalog or www.euchner.com
Connecting cable M12, 8-pin

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11. Setup
For instructions on setup, please refer to the operating instructions for your bus module MBM.
11.1. System status table (module LEDs)
If there are faults, the bit EM.E_G is set. After the fault has been rectied, it can be acknowledged using the bit EM.ACK_G.
The bit EM.E_G is reset during the process.
Operating mode
LED indicator
Device diagnostics, related fault/ status bit
State
POWER/FC (gn) STATE/DIA (gn/rd) SLOT 1 ...4
Normal operation
gn
Normal operation
Fault display
rd
1 Hz EM.E_G and
EM.E_SM
Fault in the safety equipment of the submodule. See 11.2. System
status table (slot LEDs)
1 x
rd
EM.E_G MLI communication fault (also refer to the operating instructions for
your bus module MBM)
gn/rd
5 x EM.E_G Environmental fault (e.g. temperature or power supply outside the
permissible range)
EM.E_G Internal fault (e.g. component faulty, data error)*
Key to symbols
LED not illuminated
gn
LED illuminated (here: green)
10 Hz, 8 s LED ashes for 8 seconds at 10 Hz
3 x LED ashes three times
LED ashes, short ON, long OFF
XAny state
*Latching fault; use corresponding output bit EM.ACK_G to reset.
Important: If you do not nd the displayed device status in the system status table, this indicates an internal device fault. In this case, you should contact the manufacturer.

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11.2. System status table (slot LEDs)
If a fault occurs on the submodule, the bit EM.E_SM.. is set. As soon as the fault has been corrected, it is reset automatically
(non-latching fault).
Fault display
LED SLOT1 ... 4 Meaning Measures
OFF A submodule is not used
or
Submodule functioning without faults
-
Red ON
Green ashes 1 x
Submodule missing although a submodule was includ-
ed in the last conguration
Insert suitable submodule
or
Change conguration
Red ON
Green ashes 2 x
Submodule is installed rotated by 180° Case 1: Submodule type is correct, but submodule must be installed rotated by 180°.
Case 2: If it is intended to change the conguration, the system must be restarted so
that the required conguration is taught-in.
Case 3: Alignment is irrelevant for this submodule, but the parameter for alignment
detection is active. Change parameter for alignment detection and restart system.
Red ON
Green ashes 3 x
Submodule does not correspond to the submodule
type congured last
Insert submodule of appropriate type
or
Change conguration
Red ON Internal fault in the submodule Replace submodule.
ÌIf the problem persists: replace the base unit
Red ashing (1Hz)
The DIA LED also
illuminates
Fault in the safety equipment, can be reset automat-
ically
ÌEnabling switch discrepancy fault
ÌOther input faults on the submodule
For enabling switch:
Release enabling switch and press again.
ÌIf the problem persists: check the cable and connection
ÌIf the problem persists: replace the submodule
ÌIf the problem persists: replace the base unit
For all other submodules:
Replace submodule.
ÌIf the problem persists: replace the base unit
12. Diagnostics, troubleshooting and aids
For instructions on diagnostics and troubleshooting, please refer to the operating instructions for your bus module MBM.

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Operating Instructions Extension Module
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13. Technical data
NOTICE
If a data sheet is included with the product, the information on the data sheet applies.
Parameter Value
Housing material Fiber glass reinforced plastic
Die-cast zinc, nickel-plated
Dimensions See dimension drawing
Weight Approx. 1 kg
Ambient temperature -25 … +55 °C
Degree of protection IP65
Safety class III
Degree of contamination 3
Installation orientation Any
Connection options, power supply Supply via MLI connection on the bus module or a module connected in-between
Current consumption, max. (without submodules) 75 mA
Current consumption, max., per submodule 50 mA
Current consumption, max., for stacklight module 100mA per output at 24VDC
Rated insulation voltage Ui75 V
Rated impulse withstand voltage Uimp 0.5 kV
Resilience to vibration and shock Acc. to EN60947-5-3
EMC protection requirements Acc. to EN61000-4 and DINEN61326-3-1
Risk times, max. (turn-off times) 1)
- Extension module MCM
- Submodules MSM
The extension module MCM does not contribute to increasing the risk time
See information in the operating instructions for your bus module
Reliability values acc. to ENISO13849-1:2015
Category 4
Performance Level PL e
MTTFd750 years
DC 99%
Mission time 20 years
PFHd2.82 x 10-9
1) The risk time is the max. time between the change in the input status and the clearing of the corresponding bit in the bus protocol.

Operating Instructions Extension Module
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14. Service
If servicing is required, please contact:
EUCHNER GmbH + Co. KG
Kohlhammerstraße 16
70771 Leinfelden-Echterdingen
Service telephone:
[phone]
E-mail:
[e-mail]
Internet:
www.euchner.com
15. Inspection and service
WARNING
Loss of the safety function because of damage to the device.
In case of damage, the affected module must be replaced completely. Only accessories or spare parts
that can be ordered from EUCHNER may be replaced.
Regular inspection of the following is necessary to ensure trouble-free long-term operation:
ÌCheck the secure mounting of the devices and the connections
Further inspection measures may be necessary for the modules connected and submodules installed. Please refer to the
related operating instructions.
No servicing is required. Repairs to the device are only allowed to be made by the manufacturer.
NOTICE
The year of manufacture can be seen in the lower right corner of the rating plate.

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Operating Instructions Extension Module
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16. Declaration of conformity

Operating Instructions Extension Module
MCM-MLI...
18 (Translation of the original operating instructions) 2500236-02-12/19

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2500236-02-12/19 (Translation of the original operating instructions)
Operating Instructions Extension Module
MCM-MLI...
EN

Euchner GmbH + Co. KG
Kohlhammerstraße 16
70771 Leinfelden-Echterdingen
[e-mail]
www.euchner.com
Edition:
2500236-02-12/19
Title:
Operating Instructions Extension Module MCM-MLI... and
from V1.0.0
(Translation of the original operating instructions)
Copyright:
© EUCHNER GmbH + Co. KG, 12/2019
Subject to technical modications; no responsibility is accept-
ed for the accuracy of this information.