Datalogic Arex 420 User manual

Datalogic Lighter built-in ProfiNet I/O
for Laser Marking Systems
Installation and User Manual
April 2019
REVISION 1.0

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Master Revision History
Revision
Date
Author(s)
Change Description
1.0
18.04.2019
M. Pierpaolini
Beta Site Release

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INDEX
INTRODUCTION TO THIS USER MANUAL ......................................................................... 41.
SETUP OVER PROFINET/IO NETWORK .............................................................................. 52.
2.1. CONFIGURING THE LASER MARKER FOR USE OVER PNIO............................................................ 5
Basic net settings of the Laser Marker ........................................................................... 5
Advanced net settings of the Laser Marker .................................................................... 7
2.2. CONFIGURING THE SIEMENS™S7-1200 CONTROLLER FOR USE OVER PNIO ............................... 13
Creating a PNIO node using the GSDML file ................................................................. 13
Configuring the Laser Marker PNIO node on TIA Portal................................................ 15
CYCLIC COMMUNICATION BETWEEN THE PLC AND THE DATALOGIC LASER MARKING3.
SYSTEM........................................................................................................................... 16
3.1. INPUT ASSEMBLY MEMORY MAP ........................................................................................ 18
Description of the Input Assembly Memory Map.......................................................... 19
3.2. OUTPUT ASSEMBLY MEMORY MAP ..................................................................................... 20
Description of the Output Assembly Memory Map ....................................................... 21
3.3. POSSIBLE ERRORS .......................................................................................................... 23
Command Error ........................................................................................................... 23
Protocol Error .............................................................................................................. 24
TROUBLESHOOTING..................................................................................................... 264.

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Introduction to this User Manual1.
This User manual has been developed for PLC programmers who intend to connect a
Datalogic Laser Marker to a PLC via ProfiNet/IO, in order to handle the Laser Marker and
its operations following the flow of the Production Chain.
All the screenshots and tests made as a reference for the creation of this User Manual
were made using the following versions of HW and SW:
Element used
Versioning
PLC
Siemens S7-1200
CPU 1214C DC/DC/DC
Article no. 6ES7 214-1AG31-0XB0
Firmware rev. 3.0
PLC programming SW tool
TIA Portal v.13 SP1
Datalogic Laser Marker
Arex430
Lighter version
Lighter 7.2.0 Alpha 8
Datalogic S.r.l. recommends to read this User Manual carefully before
performing any kind of operation both on the PLC and the Laser Marker. I case of any
doubts, please contact your local Datalogic Technical Support or fill in the Support
Webform on the Datalogic s.r.l website at the following link.

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Setup over ProfiNet/IO Network2.
In order to have ProfiNet/IO connection between the PLC and the Datalogic Laser
Marker, it is necessary to set up both elements: this chapter want to show the necessary
steps and the choices which the PLC programmer can make according to his needs, in
order to have communication between these two ProfiNet/IO devices.
2.1. Configuring the Laser Marker for use over PNIO
Some operations must be made on the Laser in order to have it working on an
Profinet/IO network; PLC programmers will need to assign on each Laser Marking a
Device Name and make changes to the Firewall Rules: moreover, the User, according to
his application will have to choose the dimension of the Input and Output Memory
Areas. These changes are described in the following paragraphs.
Basic net settings of the Laser Marker
The Datalogic Laser Marking systems can be discovered on an ProfiNet/IO network only
if a number of parameters on the Laser Marker and on the PLC match. The parameters
which should match are the following:
-Device Name;
-Size of Input and Output memory maps.
The Device Name of the Laser Marker can be changed following these steps:
a) Open the ‘Laser Configuration’on the Laser Marking System, by right-clicking
the Laser Engine icon in the Windows tray bar.
b) Once the Laser Configurator is open, select the ‘Network’ voice of the menu from
the left side of the interface and the Device Name can be found under the voice
‘Device Network Name’.

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c) The size of the Input and Output Memory Maps has to be set also inside the
‘Profinet’section, choosing from the 3 possible sizes expressed in Bytes (64,
128 or 254).
d) Once these parameters have been set, press ‘Apply’ followed by ‘OK’ on the
bottom of the Interface.

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Advanced net settings of the Laser Marker
All Datalogic Laser Marking devices are controlled by the Windows Firewall, which by
default settings does not allow Inbound and Outbound ProfiNet/IO traffic; in order to
establish a ProfiNet/IO connection between the PLC and the Laser Marker, the user can
either completely disable the control of the Windows Firewall, or allow all Inbound and
Outbound traffic regarding ‘LaserEngine.exe’.
To create these Inbound and outbound rules regarding the Windows Firewall, the User
can follow this procedure on the Laser Marker:
1. Enter the Control Panel and select ‘Advanced settings’.
2. New Inbound and Outbound rules need to be set for the ‘LaserEngine.exe’
program: click on ‘Inbound Rule’ and then select ‘New Rule…’.

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3. A Wizard GUI will guide you through the procedure: select ‘Program’.
4. In the Program And Services tab, browse towards the ‘LaserEngine.exe’
application, present in C:\ProgramFiles\Lighter\7.2 .

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5. Select ‘Allow the connection’, then press ‘Next’.

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6. Select all 3 types of Network.
7. Give this property a recognizable name.

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8. Now the Outbound rule must be set, making sure that all connection would be
allowed also in an Output direction. Basically, the procedure must be repeated
from point 2 to point 9, selecting ‘Outbound Rules’ at point 2 of the procedure.
Once this is done, the created input and output rules will be seen along with all
the other firewall rules.
Once all these settings have been entered, in order to make them permanent on the
Laser Marking System, please double click on the ‘Save-Data.bat’ icon, present on the
Desktop of the Laser Marker.
At this point, to activate ProfiNet/IO communication on the Datalogic Laser Marker side,
it is sufficient to set Laser Engine in Remote Mode, by clicking on the indicated Push
Button from the Laser Engine GUI:
In order to have the Laser Engine starting in Remote Mode also after the Laser Marker
has rebooted, click ‘Start in remote mode’ from the Laser Engine icon in the Windows
tray bar.

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When in Remote Mode, the Laser Engine GUI will look like this (having all the Push
Buttons disabled except for the one which brings Laser Engine back to Local Mode).

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2.2. Configuring the Siemens™ S7-1200 Controller for use over PNIO
In order to create a Datalogic Laser Marker new ProfiNet/IO node in an already existing
TIA Portal project, it is necessary to install the GSDML file.
Once the new ProfiNet/IO node has been imported inside the project, there are some
parameters which need to be set before starting to work on the data exchange between
the PLC and the Laser Marker.
Creating a PNIO node using the GSDML file
Select the ‘Manage general station description files (GSD)’ from the Options
Menu.
Now follow the steps in order to install the GSDML file, indicating the filepath of
the GSDML file on the PC where TIA is running.

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Once the GSML installation is complete, you will be able to import a ‘Laser
marker’ device from the HW catalog under this filepath: Other field devices ->
PROFINET IO -> General -> Datalogic S.r.l. -> Laser Marker -> LASER MARKER
1P. To do so, drag&drop the device from the Hardware Catalog into the HW
configuration of the device.
Once you have imported the device into the HW configuration of your project,
you will need to link it to the PLC which will communicate with the Datalogic
Laser Marker
Drag&drop

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Configuring the Laser Marker PNIO node on TIA Portal
Once the Laser Marker node has been imported, the user could want to check or change
the settings of this node.
By double clicking on the Laser Marker from the ‘Network View’ of the HW
configuration, the interface will switch to Device View. From here the user is able to:
- assign a new Device Name to the Laser Marker PNIO node;
- choose the size (64, 128 and 254 Bytes) of the Input and/or Output Memory Maps.
A new Device Name can be entered in the Module properties in the section ‘General’-
>’Name’.
Regarding Input and Output Memory sizes, users will be able to check the dafult size of
both areas (254 bytes) from the ‘Device Overview’: if the user wants to change such
memory sizes, he can cancel the default settings from the ‘Device overview’ and then
drag and drop into the Device Overview one of the possible sizes for the Input and
Output Modules.
Both the Device Name and the sizes of the Input and Output memory Maps must
be the same as the ones set inside the Laser Configurator (page 6 of this manual).

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Cyclic communication between the PLC and the Datalogic Laser Marking System3.
A ProfiNet/IO network allows the PLC to monitor and command each device which is
connected: in order to do so, there needs to be a continuous flow of information
between the PLC and each device on the network. After every Update Time whole
memory areas are exchanged from the Laser Marker in one way (Laser Marker→PLC) and
in the other (PLC→Laser Marker) so to accomplish this behavior. In order to properly
command the Laser Marker and to give the PLC an appropriate feedback, all the
information must be entered in precise portions of these memory maps exchanged
periodically between the devices.
The memory area which is generated by the Laser Marker towards the PLC will be called
Input Assembly Memory Map, while the memory area generated by the PLC towards the
Laser Marker will be called Output Assembly Memory Map.
Once connection is established between the PLC and the Datalogic Laser Marker, most
certainly the PLC programmer will want to program the PLC so to command the Laser
System by giving it an automatic flow of commands: this process will include the
handling of a simple protocol handshake, regarding the use of different bits, both on
the Input and Output Assembly Memory Map:
-Command Bit: single bit (part of a group of bits) which are present on the Output
Assembly Memory Map and according to its position, it will represent the
command which the PLC wants the Laser Marker to execute.
-Mirroring Bit: single bit (part of a group of bits) which are present on the Input
Assembly Memory Map and according to its position, it will inform the PLC that
the requested command has been started (when HIGH) and that it has been
completed (when LOW) if the Handshake is followed.
In order to make sure that the command is fully executed by the laser, a simple
Handshake must be respected by the PLC programmer. Here are the 5 steps:
1. Check the State of the Laser System (address 0 and 1 of the Input Memory Map)
and that the protocol is still running correctly (address 2 and 3 must be ‘0’ in
DEC format): see the list of possible errors at paragraph 2.3.
2. Set the Command Bit 0→1 (e.g. if the requested command is to Start Marking,
then the Command Bit is bit 0 at Address 0, which must now pass 0→1), and if
necessary also the Request Data field along with the Request Data size.
3. As soon as the Laser starts executing the command requested by the PLC, both
the Mirroring Bit and the Command Executing bit on the Input Memory Map pass
0→1.
Nearly all Command Bit have a matching Mirroring Bit: this means that whatever
command the PLC requests the laser to execute by setting a Command Bit 0→1, there
will nearly always be a dedicated Mirroring bit which informs the PLC about the stage
of the command execution.

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4. The PLC must reset the Command Bit 1→0 as soon as it detects the Mirroring Bit
and the Command Executing bit are changing state 0→1 (e.g. the Mirroring Bit
for the ‘Start Marking Command’ is at Address 10 Bit 0). If the command does
not have a Mirroring Bit, then the PLC should reset the Command Bit 1→0 when
the only Command Executing bit changes state 0→1.
5. When the Mirroring bit and the Command Executing bit pass 1→0, it means that
the requested command has been completed: the Laser System is ready to start
again from step 1 with another command.
COMMAND BIT
MIRRORING
BIT
COMMAND
EXECUTING BIT
This behavior is summed up by this State Diagram:
As soon as the connection is established, the State diagram is positioned at its Entry
Point: the protocol will not accept any command from the PLC before receiving an
Output Assembly Memory Map fully made of ‘0’. Until this condition is fulfilled, the
If the Command Bit has changed state
1 → 0 as soon as the EXECUTING state
has been reached, then the State
Diagram will stay in EXECUTING state
until the command has been completed!
Command requested
by the PLC by the
transition of a
‘Command Bit’ 0→1
& no errors detected
‘Command Executing’ bit 0→1
&
‘Mirroring bit’ 1→0 (if present)
BOOTING UP state
‘Booting Up’ bit = 1
when the first Output
Assembly memory Map is
full of ‘0’
then ‘Booting Up’ bit 1→0
ENTRY POINT
LISTENING state
‘Command Executing’ bit = 0
EXECUTING state
‘Command Executing’ bit =1
When the ‘Mirroring bit’ 0→1 (if present)
then the ‘Command Bit’ 1→0
Legend:
Actions which are made by the PLC
Actions which are made by the
Datalogic Laser Marker
1.
2.
3.
4.
5.

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Laser State Diagram will remain in BOOTING UP state and the ‘Booting Up’ bit=1 (the
‘Booting Up’ bit is bit 7 address 3 of the Input Assembly Memory Map).
When this condition is achieved, the ‘Booting Up’ bit passes 1→0, meaning that the
LISTENING state has been reached. Now the PLC can request the execution of a
command to the Laser Marker.
The execution of the command is underway when the Command Executing bit and the
Mirroring Bit change state 0→1; moreover, as soon as the Command Executing bit and
the Mirroring Bit change state 0→1, the PLC must reset the Command Bit 1→0. If the
selected Command Bit doesn’t have a matching Mirroring Bit , then the Command Bit can
be pulled down whenever Command Executing bit changes state 0→1.
If, by any chance, the Command Bit is not pulled down when the Mirroring Bit and
Command Executing bit turns 0→1, then the Command Executing bit and the Mirroring
Bit will not turn to 0 when the command is ended. The Protocol State will pass in
LISTENING as soon as the Command Executing bit passes 1→0.
3.1. Input Assembly Memory Map
The input Assemby Memory Map has been developed in order to structure all the data
coming from the Datalogic Laser Marker towards the PLC. Depending on the
information that the Laser is returning at every Update Time, the PLC could need to
check a single bit or multiple bytes from the following memory map.
Address
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0
Laser
Emission
Laser
Ready
Shutter
Closed
Laser
Ready
Laser
Standby
Shutter
Closed
Laser
Standby
Laser Wait
for start
Laser
Warm Up
Laser Off
1
Laser
Error
Laser
Warning
Laser Busy
Shutter
Closed
2
Protocol
Error
Command
Error
Command
Executing
3
Protocol
Boot Up
4
Command Error Code
5
Protocol Error Code
6
Auto
Mode
Manual
Mode
7 to 9
Reserved
10
Set to
Auto
mode
Set to
Manual
mode
Stop
Marking
Start
Marking
11
Get Laser
Engine
Version
12
Set Global
String
Value
Get Global
String
Value
Set Global
Counter
Value
Get Global
Counter
Value
Set Data
Field Value
Get Data
Field
Value
Save
Document
Open
Document
From Device
13
Disable
Data Field
Enable
Data Field
14
Move data
field
Move and
rotate
document

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15 to 53
Reserved
54
Response Data Size (Low Bite)
55
Response Data Size (High Bite)
56 to
63/127/253
Response Data
Description of the Input Assembly Memory Map
According to the logic state of the following bits, the PLC is constantly informed about
the Datalogic Laser System state, in addition to the state of a requested command.
Address
Bit
Name
Value
Description
0
0
Laser Off
0=not LE current state;
1=LE current state
USB connection with Ulyxe not established
1
Laser Warm Up
Laser is in Warm Up State (KEY=1, ENABLE=0)
2
Laser Wait For Start
Laser is in Wait For Start State (KEY=0, ENABLE=0)
3
Laser Standby
When one of the two Enables has been closed
4
Laser Standby Shutter Closed
Laser is in Standby Shutter Closed State (KEY=1,
ENABLE=0, after the Warm Up stage)
5
Laser Ready
Laser is in Laser Ready State (KEY=1, ENABLE=1)
6
Laser Ready Shutter Closed
N.A.
7
Laser Emission
Laser is in Laser Emission State (KEY=1, ENABLE=1)
1
0
Laser Busy Shutter Closed
0=not LE current state;
1=LE current state
Laser is in Laser Busy Shutter Closed State (KEY=1,
ENABLE=0)
1
Laser Warning
Laser is in Laser Warning State
2
Laser Error
Laser is in Laser Error State
2
0
Command Executing
0: Protocol is not
currently in this phase; 1:
Protocol is currently in
this phase
Lighter is executing a command
1
Command Error
Lighter has generated a Command Error. Check address
4 for the Command Error Code
2
Protocol Error
Lighter has generated a Protocol Error. Check address 5
for the Protocol Error Code
3
7
Protocol Boot Up
Lighter PNIO is in BOOTING UP phase: it will end as
soon as a completely empty Output memory map is
generated from the PLC towards the Laser Marker
4
0 to 7
Command Error Code
See error paragraph 3.3
Gives information about the Command Error
5
0 to 7
Protocol Error Code
See error paragraph 3.3
Gives information about the Protocol Error
6
0
Manual Mode
0: not LE current
operating mode; 1: LE
current operating mode
Laser Engine is currently in Manual Mode
1
Auto Mode
Laser Engine is currently in Auto Mode
7 to 9
Reserved
10
0
Start Marking
1:Laser started Marking;
0:Laser is not marking
Informs on the marking process, and turns to 0 when
this has ended
1
Stop Marking
1:Laser marking has been
stopped; 0:Laser marking
has not been stopped
Informs whether the marking process has been stopped
4
Set to Manual Mode
1:Laser Engine operating
mode is being changed;
0: Laser Engine operating
mode has been changed
Informs whether the Laser Engine has switched
operating mode
5
Set to Auto Mode
Informs whether the Laser Engine has switched
operating mode
11
1
Get Laser Engine Version
0: Not executing this
command; 1:Executing
this command
Returning the Laser Engine Version

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12
0
Open Document From Device
0: Not executing this
command; 1:Executing
this command
Loading a document which is present inside the Laser
Engine default filepath D:\Data\Docs\Layouts
1
Save Document
Saving the loaded and/or modified document
2
Get Data Field Value
Returning the content of the object with the specified ID
3
Set Data Field Value
Setting the content of the object with a specified ID
4
Get Global Counter Value
Returning a Global Counter value
5
Set Global Counter Value
Setting a Global Counter value
6
Get Global String Value
Returning a Global String value
7
Set Global String Value
Setting a Global String value
13
0
Enable Data Field
Enabling the specified Data Field
1
Disable Data Field
Disabling the specified Data Field
14
0
Move and rotate document
Moving and rotating a document
1
Move Data Field
Moving the specified Data Field to the given position, in
relation to the center of the marking field
15 to 53
Reserved
54
0 to 7
Response Data Size (Low Byte)
"Response Data" field
usable length (Low and
High byte)
Reporting the PLC how long the usable data is inside the
Response Data field.
55
0 to 7
Response Data Size (High Byte)
56 to
63/127/253
0 to 7 (for
each
address
Byte)
Response Data
Each byte represents an
ASCII character that the
laser is reporting towards
the PLC
From Address 56 for a number of bytes specified by the
'Response Data Size' fields, the PLC can find the data
returned by the Laser Marker
3.2. Output Assembly Memory Map
The Output Assembly Memory Map has been developed in order to structure all the data
coming from the PLC towards the Datalogic Laser System. The PLC will need to set a
single bit or multiple bytes in the following memory map.
Address
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0
Set to Auto
Mode
Set to
Manual
Mode
Stop
Marking
Start
Marking
1
Protocol
Error Clear
Get Laser
Engine
Version
2
Set
Global
String
Value
Get Global
String
Value
Set Global
Counter
Value
Get Global
Counter
Value
Set Data
Field
Value
Get Data
Field
Value
Save
Document
Open
Document
from Device
3
Disable
Data Field
Enable
Data Field
4
Move data
field
Move and
rotate
document
5 to 53
Reserved
54
Request Data Size (Low Byte)
55
Request Data Size (High Byte)
56 to
63/127/253
Request Data