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Operating Instructions Bus Module
MBM-EC-..-MLI-… (EtherCAT)
24
(translation of the original operating instructions) 2540772-01-11/21
11.4. System layout and layout of the data areas in the control system
Due to its modular layout, the MLI system offers you a very large degree of flexibility. This flexibility also applies to the use
of the communication data. The data areas that the system occupies in your control system are dependent on your system
layout.
Every module has fixed communication data that are permanently assigned when the modules are combined in the con-
figuration software for your control system. For some modules and submodules there are also optional data that you can
evaluate. These can be more detailed diagnostic functions, for example.
The following graphic is intended to make it clear which rules must be used to combine the data blocks from the individual
modules and submodules. A distinction is made between non-safe EtherCAT data and safe FSoE data.
While EtherCAT data are always incorporated by bytes (
block #1 … #4
), the data are always incorporated by individual bits for
FSoE data (
single bits
in the figure below). This means you must make sure you provide enough safe memory for FSoE data.
The following example shows a typical system layout with the bus module (BM1) to which two locking modules (LM1 and
LM2) are connected on one line. The first locking module (LM1) also contains a submodule (SM1) with one emergency stop
and two pushbuttons. Based on this example, you can see the composition of the communication data.
MBM
MGB2-L1
MSM
BM_
LM1
LM1
SM1
SM1
IN
IN
IN
OUT
OUT
!
safe data
!
!
EtherCAT Input / Output
MGB2-L1
LM1
FO_CL
IN
!
IN
!
LM1
FI_SK
LM1
FI_UK
OUT
!
LM1
FO_CL
IN
!
LM1
FI_SK
LM1
FI_UK
OUT
!
LM2
FO_CL
LM2
FO_CL
IN
!
LM2
FI_SK
LM2
FI_UK
LM2
FI_SK
LM2
FI_UK
LM1
FI_ES
LM1
FI_ES
BM_
E_ML1
BM_
D_RUN
BM_
E_ML2
BM_
E_ML3
BM_
E_ML4
BM_
E_SYS
-
BM_
E_G
LM1
D_RUN
LM1
I_SK
LM1
I_UK
-
LM1
E_SM1
LM1
E_SM2
LM1
E_ER
LM1
E_G
SM1
I_S1
SM1
I_S2
SM1
I_S3
-
-
SM1
E_S1
-
-
LM1
I_OD
LM1
I_OT
LM1
I_OL
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Diagnosebyte mit Fehlercodes optional steckbar)
Diagnostic byte with error codes (optional pluggable)
Diagnosebyte mit Fehlercodes optional steckbar)
Diagnostic byte with error codes (optional pluggable)
Diagnosebyte mit Fehlercodes optional steckbar)
Diagnostic byte with error codes (optional pluggable)
-
-
BM_
ACK_G
OUT
SM1
O_H1
SM1
O_H2
SM1
O_H3
SM1
O_H1B
SM1
O_H2B
SM1
O_H3B
-
-
OUT
LM1
O_CL
LM1
ACK_ER
LM1
ACK_G
LM2
LM2
IN
LM2
D_RUN
LM2
I_SK
LM2
I_UK
-
LM2
E_SM1
LM2
E_SM2
LM2
E_ER
LM2
E_G
LM2
I_OD
LM2
I_OT
LM2
I_OL
-
-
-
-
-
-
-
-
-
-
Diagnosebyte mit Fehlercodes optional steckbar)
Diagnostic byte with error codes (optional pluggable)
OUT
LM2
O_CL
LM2
ACK_ER
LM2
ACK_G
block #1
block #2
single bits
single bits
single bits
safety bit sequence (in the right or
der)
block #3
block #4
fix block
Legend:
optional
safe
FSoE Input / Output
!
!