Moeller XN-PLC-CANopen Parts list manual

Modular PLC
XN-PLC-CANopen
Bedienungshandbuch
Moeller GmbH
Industrieautomation
Hein-Moeller-Straße 7–11
D-53115 Bonn
E-Mail: [e-mail]
Internet: www.moeller.net
© 2002 by Moeller GmbH
Änderungen vorbehalten
AWB2724-1566D xx/xx/Ki 03/05
Printed in the Federal Republic of Germany (0x/02)
Article No.: xxxxxx
Hardware, Engineering and
Functional Description
02/05 AWB 2724-1566GB
A
A A
Think future. Switch to green. Think future. Switch to green.

All brand and product names are trademarks or registered
trademarks of the owner concerned.
1stpublished 2005, edition date 02/05
© Moeller GmbH, 53105 Bonn
Authors: Peter Roersch
Editor: Thomas Kracht
Translator:Dominik Kreuzer
All rights reserved, including those of the translation.
No part of this manual may be reproduced in any form
(printed, photocopy, microfilm or any other process) or processed,
duplicated or distributed by means of electronic systems without
written permission of Moeller GmbH, Bonn.
Subject to alteration without notice.

1
Before commencing the installation
• Disconnect the power supply of the device.
• Ensure that devices cannot be accidentally restarted.
• Verify isolation from the supply.
• Earth and short circuit.
• Cover or enclose neighbouring units that are live.
• Follow the engineering instructions (AWA) of the
device concerned.
• Only suitably qualified personnel in accordance with
EN 50110-1/-2 (VDE 0105 Part 100) may work on
this device/system.
• Before installation and before touching the device ensure
that you are free of electrostatic charge.
• The functional earth (FE) must be connected to the protective
earth (PE) or to the potential equalisation. The system installer
is responsible for implementing this connection.
• Connecting cables and signal lines should be installed so
that inductive or capacitive interference does not impair the
automation functions.
• Install automation devices and related operating elements in
such a way that they are well protected against unintentional
operation.
• Suitable safety hardware and software measures should be
implemented for the I/O interface so that a line or wire
breakage on the signal side does not result in undefined
states in the automation devices.
• Ensure a reliable electrical isolation of the low voltage for the
24 volt supply. Only use power supply units complying with
IEC 60364-4-41 (VDE 0100 Part 410) or HD 384.4.41 S2.
• Deviations of the mains voltage from the rated value must
not exceed the tolerance limits given in the specifications,
otherwise this may cause malfunction and dangerous
operation.
• Emergency stop devices complying with IEC/EN 60204-1 must
be effective in all operating modes of the automation devices.
Unlatching the emergency-stop devices must not cause restart.
• Devices that are designed for mounting in housings or control
cabinets must only be operated and controlled after they have
been installed with the housing closed. Desktop or portable
units must only be operated and controlled in enclosed
housings.
• Measures should be taken to ensure the proper restart of
programs interrupted after a voltage dip or failure. This should
not cause dangerous operating states even for a short time.
If necessary, emergency-stop devices should be implemented.
• Wherever faults in the automation system may cause
damage to persons or property, external measures must be
implemented to ensure a safe operating state in the event of
a fault or malfunction (for example, by means of separate limit
switches, mechanical interlocks etc.).
Moeller GmbH Safety instructions
Warning!
Dangerous electrical voltage!

2

02/05 AWB2724-1566GB
1
About this manual 5
Device application 5
Abbreviations and symbols 5
Additional documentation 5
1 Layout of the XN-PLC 7
System and field voltage 7
XI/ON I/O module 7
CPU functions 7
– Operating mode switch 7
– SET button 8
– APPLICATION switch 8
– LED status indicator 1 8
– LED status indicator 2 9
–Real-timeclock 9
– Battery 9
– Limit values for memory usage 9
– Service (programming) interface 10
– CANopen fieldbus interface 11
2 Mounting 13
Mounting the XN-PLC 13
Mounting the XI/ON modules 13
3 Engineering 15
Control panel layout 15
– Ventilation 15
– Layout of units 15
Preventing interference 15
– Suppressor circuitry for interference sources 15
–Shielding 15
Lighting protection 16
Connecting system and field voltage 16
4 Using the XN-PLC 17
Switch-on behaviour 17
CPU status indicator 17
Configuring the start-up behaviour with XSoft 17
Program start 18
– Program start (STOP lRUN) 18
Behaviour after power off or power interruption 18
Program stop (RUN lSTOP) 18
Program processing and system time 18
Monitoring cycle time 18
Reset 19
– Warm reset 19
– Cold reset 19
–Fullreset 19
Contents

Contents 02/05 AWB2724-1566GB
2
Test and commissioning 19
– Breakpoint/single-step mode 19
– Single-cycle mode 19
– Forcing variables and I/Os 19
– XSoft status indication 20
System events 20
Timer interrupt 20
Creating and transferring boot project 21
Downloading/updating the operating system 22
Diagnostics 24
User program source code 24
5 Browser commands 25
Calling browser commands 25
Using and evaluating browser commands 26
–reflect 26
–mem 26
–memc 26
–memd 26
–pinf 26
–ppt 26
–dpt 27
–pid 27
–cycle 27
– canload 27
–GetNodeId 27
– SetNodeId 28
–metrics 28
–reload 28
–remove 28
–getswitchpos 29
– getrtc 29
–setrtc 29
6 Libraries, function blocks and functions 31
Using libraries 31
Installing additional system libraries 31
XN-PLC-specific functions 32
– Library XN_PLC_Util.lib 32
– Function CAN_BUSLOAD 32
– Function GETAPPLICATIONSWITCH 32
7 Establishing a PC – XN-PLC connection 33
Communication settings of the PC 33
Communication settings (baud rate) of the CPU 33
8 Creating a sample project 35
Function 35
Setting up a target system 35
Configuring the PLC 36
Writing a program 37

02/05 AWB2724-1566GB Contents
3
9 Programming through CANopen network (routing) 39
Prerequisites 39
Notes 40
Addressing 40
Procedure 40
PLC combinations for routing 42
Number of communication channels 42
10 RS 232 interface in transparent mode 43
Appendix 45
Dimensions 45
Technical data 46
Stichwortverzeichnis 49

02/05 AWB2724-1566D
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02/05 AWB2724-1566GB
5
About this manual
Device application
The XN-PLC-CANopen, referred to as XN-PLC below, is intended
for use in machine and plant control systems. The PLC has an
RS 232 programming device (service) and a built-in CANopen field
bus interface conforming to CIA specification DS301 V4.0. You
can use the PLC as CAN master or as a slave in a CAN network.
Abbreviations and symbols
The symbols used in this manual have the following meanings:
XIndicates instructions for user actions.
Menu items, window titles, button labels and field names are
printed bold. File names, user input and function names are
shown in italics.
To improve legibility, the title of the current section is given at the
top of each left-hand page and the current subsection at the top
of each right-hand page (except on blank pages and the first page
of each section).
Additional documentation
In some places this manual contains references to more detailed
descriptions in other manuals, which are described with their title
and documentation number (e.g. AWB2786-1452GB).
For specific information about selecting, installing, configuring
and using the XI/ON modules, see the documents listed below:
• Power supply modules and digital I/O modules
(AWB h1533g.pdf)
– XI/ON station general
– Integration in CANopen.
• XI/ON gateway for CANopen (AWB2725-1530GB)
Product description
– Communication
– Interfacing with automation products.
• Product description XI/ON XN-1RS232 (h1494g.pdf)
• Product description XI/ON XN-1RS485/422 (h1495g.pdf)
• Product description XI/ON XN-1SSI (h1496g.pdf).
All manuals are available in PDF format. If you cannot find a
particular manual on the product CD, you can download it as a
PDF file from our website: Go to http://www.moeller.net/support
and enter the document number in the Quick Search field.
hIndicates useful advice and additional information.
Important
Indicates a risk of material damage.
Caution!
Indicates a risk of serious material damage or slight injury.
Warning!
Indicates a risk of serious material damage or serious or
fatal injury.

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02/05 AWB2724-1566GB
7
1 Layout of the XN-PLC
The PLC has a compact design and can be expanded centrally with
XI/ON modules and/or remotely through the CANopen bus.
System and field voltage
The system voltage supplies the CPU functional span and –
through the module bus – the XI/ON modules’ logic circuitry. The
system voltage is monitored for power failure. If the voltage drops
off, a data backup is run.
The field voltage supplies the load connected to the XI/ON
modules.
For further information achapter “Engineering” on page 15.
XI/ON I/O module
You can expand the XN-PLC centrally with the available XI/ON
modules.
For further information a“XI/ON – Digital I/O Modules” manual
(AWB2725-1533GB).
CPU functions
Operating mode switch
With the operating mode switch, you can set the functions shown
in table 1.
Table 1: Operating mode switch functions
For further information achapter “Using the XN-PLC” from
page 17.
Figure 1: Layout of the XN-PLC-CANopen
aSET button
bLED display 1
cI/O module
dEnd plate
eLED display 2
fCANopen
gSystem and field voltage
hOperating mode switch
(0 = Stop, 1 = RUN, 7 = Mode, 8 = Factory, 9 = Reset)
iAPPLICATION switch
jService/programming interface
b
j
f
a
i
g
e
h
SERVICE
SET
APPLICATION
USys GNDSys UL GNDL
PLC
CANopen
GW
SF
IOs
RUN
STP
Err BUS
11 21
12 22
13 23
c d
Figure 2: Operating mode switch for RUN, STOP, etc.
Switch
position
Function
0STOP
1RUN
2STOP
3STOP
4STOP
5STOP
6STOP
7STOP
8STOP; when you press the SET button for at least three
seconds, the default values are read.
9STOP; when you press the SET button for at least three
seconds, a Reset is performed.
0
9
8
7
6
5
4
3
2
1

Layout of the XN-PLC 02/05 AWB2724-1566GB
8
SET button
The SET button is enabled only in connection with setting 8 and 9
of the operating mode switch. When you press the SET button,
setting 8 or 9 becomes active (atable 1).
APPLICATION switch
You can query the number set with this switch in the user program
with the GetApplicationSwitch function. You can find this function
in the XN_PLC_UTIL.lib library.
LED status indicator 1
Table 2: LED status indicator 1
Figure 3: SET button
Figure 4: APPLICATION switch
Figure 5: LED status indicator 1
SERVICE
SET
APPLICATION
0
9
8
7
6
5
4
3
2
1
PLC
CANopen
GW
SF
IOs
RUN
STP
LED Meaning
GW
Green Rated field voltage ULis in valid range
Green, flashing at
1Hz
Rated field voltage not available or < 15 V DC
Green, flashing at
5Hz
Rated field voltage > 35 V DC
I/Os
Green Configured constellation of module bus
station corresponds with the actual selection;
communication running
Green, flashing at
1Hz
Station is in Force mode
Red and
“GW” LED off
PLC not ready for operation or operating
voltage not in the required range
Red Module bus not ready for operation
Red, flashing at
1Hz
Non-adaptable change of actual constellation
of module bus stations
Red/green,
flashing at 1 Hz
Adaptable change of actual constellation of
module bus stations
Red flashing No communication through the module bus
SF + RUN/STP
Red + Off System test being run (up to 6 seconds after
start; after 6 seconds no user program present)
Red + green System update in progress
Both flashing System test found a fault
Red + green
flashing
User program loaded, PLC in STOP state
Off + green User program loaded, PLC in RUN state
Red + green
flashing
Group error/diagnosis message issued,
apage 24
Red (dependent on
grouperrorOff/On)
+ green (flashing
quickly during
Reset)
Reset through operating mode switch
(switch position 9)

02/05 AWB2724-1566GB CPU functions
9
LED status indicator 2
Table 3: LED status indicator 2
Real-time clock
The XN-PLC features a real-time clock, which can be referenced in
the user program using the functions in the SysLibRTC library, for
example to read or set the time.
The functions are described in the online help and in the
SysLibRtc.pdf file. This file is located in the
XSoft\Dok\English\XSoftSysLibs folder.
Battery
The battery is permanently installed and can not be replaced by the
user. It supplies the built-in real-time clock (RTC) with power when
the XN-PLC is switched off.
The backup time is normally about 10 years.
Limit values for memory usage
The XN-PLC’s memory is segmented. The segment sizes are shown
in figure 7. The number of segments available to global data can
be specified to suit the size of the loaded program.
To view the specified segment size for a PLC type, select the
Resources tab in the object organizer and double-click Target
Settings. In the dialog select the Memory Layout tab:
To allow optimized, efficient usage of the memory range available
for global data, set the number of global data segments to 12
when you create a new project. The default value is one. The next
section contains a description of how to change the number of
allocated segments.
Figure 6: LED status indicator 2
LED Meaning
Err
Off Error-free communication between XN-PLC and other
CANopen stations
Red Faulty or interrupted communication between XN-PLC
and other CANopen stations
Check whether:
• the field bus is terminated with a terminating resistor if
the XN-PLC is the last station in the bus topology;
• the CANopen bus connector or the direct connection is
secure and whether all connections are correct;
• the CANopen cable is correctly connected or shows
signs of damage;
• the correct bit rate is set;
• the CAN communication is still working correctly.
Bus
Off Field bus not in operation
Wait until the Firmware download is completed. If the LED
remains red, there is a hardware fault. Replace the PLC in
that case.
Red CAN device status of the XN-PLC is Stopped
Orang
e
CAN device status of the XN-PLC is Pre-operational
Green CAN device status of the XN-PLC is Operational
Err BUS
hThe XN-PLC does not support functions
SysRtcCheckBattery and SysRtcGetHourMode!
Figure 7: Segment size of the XN-PLC

Layout of the XN-PLC 02/05 AWB2724-1566GB
10
Changing segment allocation
XSelect PLC type XN-PLC-CANopen. Select menu Project l
Options to open the Options dialog. In the Category field
select Build and enter a “12” in the Number of data
segments field.
Service (programming) interface
You can use this interface:
• as a programming interface or
• for transparent mode/SUCOM-A protocol.
Through the RS 232 programming interface, communications
between the XN-PLC and the programming device takes place.
The handshake lines of the RS 232 interface can not be used.
You can also switch the RS 232 interface to transparent mode
(achapter “RS 232 interface in transparent mode” on page 43).
The interface port is a PS/2 socket. It is not electrically isolated.
Programming cable
Use programming cable XN-PS/2-CABLE to connect the PC with
the XN-PLC.
Figure 8: Memory management: changing the number of data
segments
hImportant
You can not use commercial standard PS/2 cables.
Figure 9: Assignment of programming cable
XN-PS/2-CABLE
XN-PLC
PS/2 socket
(front view)
PC
9-pin RS 232 socket
2 GND 5 GND
4 TxD 2 RxD
6 RxD 3 TxD
1
2
3
456
5
9876
43 2 1

02/05 AWB2724-1566GB CPU functions
11
CANopen fieldbus interface
The XN-PLC can be connected to the CANopen bus through the
isolated ISO 11898 interface. The device can be operated as CAN
master or CAN device.
Power supply for CAN network stations
You can connect the power supply for the individual CAN stations
in any order.
Bus termination resistors
The ends of the network link must be terminated with 120 Obus
termination resistors:
Properties of the CANopen cable
Use only cable approved for CANopen applications and with the
following characteristics:
• Characteristic impedance 100 to 120 O
• Capacitance < 60 pF/m
The demands placed on the cable, connectors and bus termination
resistors are specified in ISO 11898. Listed below are a few
requirements and rules for CANopen networks.
table 4 lists default parameters for CANopen networks with fewer
than 64 CANopen stations.
Table 4: Standard parameters for CANopen network cable according to
ISO 11898
Figure 10:Pin assignment, CANopen
CAN H Non-inverted data signal (dominant high)
Shield Fieldbus screen connection
CAN L Inverted data signal (dominant low)
GND Chassis (optional for the CAN data signals)
Figure 11: Possible configuration of a CANopen bus with bus
termination resistors
aScreen
CAN H
SHIELD
CAN L
GND
CAN H
120 O
CAN L
CAN H
120 O
CAN L
GND GND
aa
Bus length Loop resistance Conductor cross-section Bus termination resistor Transfer rate at cable length
[m] [mO/m] [mm2][O] [kbit/s]
0 – 40 70 0.25 – 0.34 124 1000 at 40 m
40 – 300 < 60 0.34 – 0.6 150 – 300 > 500 at 100 m
300 – 600 < 40 0.5 – 0.6 150 – 300 > 100 at 500 m
600 – 1000 < 26 0.75 – 0.8 150 – 300 > 50 at 1000 m

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2 Mounting
Mounting the XN-PLC
XHook the XN-PLC onto the mounting rail from below.
XPull the locking slider upwards.
XPress the top of the XN-PLC against the mounting rail.
XPush the locking slider down again.
Mounting the XI/ON modules
The XI/ON modules consist of a base module and an electronics
module.
XConnect the system’s base module with the PLC from the right-
hand side.
XSecure the XN-PLC and the base modules on a 35 mm mounting
rail.
Yo can connect up to 74 I/O modules in slice design. Engaging
base modules XN-P3x-SBB and XN-P3x-SBBC immediately next to
the XN-PLC is not possible for mechanical reasons.
XClip any electronics modules onto the base modules.
During commissioning or for maintenance, you can connect and
disconnect the electronics modules without affecting the wiring.
The base modules are wired through tension spring or screw
connectors.
hImportant
Make sure that the XN-PLC is securely attached to the
top-hat rail.
Figure 12:Mounting the XN-PLC
1
2
3

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3 Engineering
Control panel layout
The layout of the components inside the control panel is a major
factor for achieving interference-free functioning of the plant or
machinery. During the project planning and design phase, as well
as its implementation, care must be taken that the power and
control sections are kept physically separated from each other. The
power section includes:
• Contactors
• Coupling/interfacing components
• Transformers
• Frequency inverters
•Converters
To effectively exclude any electromagnetic contamination, it is a
good idea to divide the system into sections, according to their
power and interference levels. In small control panels it is often
enough to provided a sheet steel dividing wall, to reduce
interference factors.
Ventilation
A clear space of at least 50 mm must be kept between passive
components, to ensure adequate ventilation. If the neighbouring
components are active elements, such as power supplies or
transformers, then the minimum spacing should be 75 mm. The
values given in the technical specifications must be observed.
Layout of units
Mount the PLC horizontally in a control panel:
Preventing interference
Cable routing and wiring
Cables are divided into the following categories:
• Power cables (e.g. cables that carry high currents, or cables to
converters, contactors or solenoids)
• Control and signal cables (e.g. for digital inputs)
• Measurement and signal cables (e.g. for fieldbus connections)
Take care to implement proper cable routing both inside and
outside the control panel, to keep interference as low as possible:
XAvoid parallel routing of cable sections in different power
categories.
XAlways keep AC cables and DC separated.
XKeep to the following minimum spacing:
– at least 10 cm between power cables and signal cables;
– at least 30 cm between power cables and data or analog
cables.
– When routing cables, make sure that the outgoing and return
leads of a circuit pair are routed together: The opposing
currents – and therefore the generated electromagnetic
fields – cancel each other out.
Suppressor circuitry for interference sources
XConnect all suppressor circuits as close to the source of
interference (contactors, relays, solenoids) as possible.
Shielding
XUse shielded cables for the connections to the data interfaces.
The general rule is: the lower the coupling impedance, the
better the shielding effect.
Figure 13: Control panel layout
aSpacing > 50 mm
bSpacing > 75 mm to active elements
cCable duct
c
ba
ba
b
a
b
a
hAlways route power cables and control cables as far apart
as possible This avoid capacitive and inductive coupling.
If the cables cannot be routed separately, shield the cable
causing interference.
hSwitched inductors should always have suppressor
circuitry fitted.

Engineering 02/05 AWB2724-1566GB
16
Lighting protection
External lightning protection
All cables routed outside buildings must be shielded. Metal
conduit is best for this purpose. Fit signal cables with overvoltage
protection, such as varistors or other surge voltage protectors.
Where possible, protective elements should be fitted at the point
of entry of the cable into the building, but no further away than
the control panel.
Internal lightning protection
Internal lightning protection covers all measures to reduce the
effects of a lightning strike and the resulting electrical and
magnetic fields on metallic installations and electrical plants.
These measures are:
• Equipotential bonding/earthing
• Shielding
• Using overvoltage protection devices
Please consult the following manuals for advice on cable routing
and shielding measures:
• AWB27-1287 “EMC Engineering Guidelines for Automation
Systems”.
• TB27-001-GB “Electromagnetic Compatibility (EMC) for
Automation systems”.
• TB02-022-GB “Electromagnetic Compatibility (EMC) for
Machinery and Plant”.
Connecting system and field voltage
Connect the system voltage at terminals USys and GNDSys, and the
field voltage at terminals ULand GNDL. Use separate power supply
cabling for the system and field voltage.
You do not need a separate power source for the system and field
supply.
Table 5: Rated values for the XN-PLC’s system and field voltage
You can connect up to 74 XI/ON modules in slice design to the XN-
PLC. The power consumption of all modules must be less than the
supply current supplied by the XN-PLC. If current consumption is
higher, you can use additional modules for power supply, for
example a bus refreshing module or a power feeding module.
Bus refreshing modules supply the built-in module bus with
5 V DC and the XI/ON modules with 24 V DC.
Power feeding modules supply the XI/ON modules with the field
voltage of 24 V DC. A further module type provides 120/230 V AC.
You can use these modules create groups of different potentials
within the PLC. The 120/230 V AC modules can be arranged
immediately to the right of the XN-PLC.
For configuring the PLC, please refer to manuals “XI/ON: Digital I/
O Modules and Supply Modules” (AWB2725-1533GB) and “XI/
ON Gateways for CANopen” (AWB2725-1530GB).
Figure 14:Terminals for system and field voltage
USys GNDSys ULGNDL
Rated system
voltage
24 V DC 0 V DC
Rated field
voltage
24 V DC 0 V DC
U
Sys
GND
Sys
U
L
GND
L
Figure 15:Rating of XI/ON module supply
XN-PLC
XI/ON module bus 1.5 A/5 V DC
XI/ON field voltage 10 A/24 V DC
USys
24 V DC
UL
24 V DC