Baumer EAM MT Series User manual

Baumer Electric AG
Hummelstrasse 17
CH-8501 Frauenfeld
Phone [phone]
Fax [phone]
[e-mail] Subject to modification in technic and design.
www.baumer.com Errors and commissions excepted
Manual
Absolute encoder with CANopen®

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Contents
1Version overview .........................................................................................................................................4
2Safety and operating instructions..............................................................................................................5
3Product Assignment....................................................................................................................................6
3.1 Absolute encoder...........................................................................................................................................6
4System Overview.........................................................................................................................................7
4.1 General..........................................................................................................................................................7
4.2 Supported Profiles.........................................................................................................................................7
4.3 Supported CANopen Services.......................................................................................................................7
4.4 Function Principle..........................................................................................................................................7
4.4.1 Overview........................................................................................................................................................7
4.4.2 Scaling...........................................................................................................................................................7
4.4.3 Position Range ..............................................................................................................................................8
4.4.4 Speed range..................................................................................................................................................8
4.4.5 Electronic gear function .................................................................................................................................9
4.5 Encoder with redundant design ...................................................................................................................10
4.5.1 Baudrate......................................................................................................................................................10
4.5.2 Node Id........................................................................................................................................................10
4.6 Encoder as standard component with embedded software used in safety functions...................................10
5NMT Service...............................................................................................................................................11
5.1 Supported commands..................................................................................................................................11
5.1.1 NMT Reset...................................................................................................................................................11
5.1.2 NMT Communication Reset.........................................................................................................................11
5.2 Boot-up message.........................................................................................................................................11
6SDO service................................................................................................................................................12
6.1 General........................................................................................................................................................12
6.2 Save/load parameters..................................................................................................................................12
6.2.1 Save ............................................................................................................................................................12
6.2.2 Load.............................................................................................................................................................12
6.2.3 Safe non-volatile operation..........................................................................................................................12
7PDO Service...............................................................................................................................................13
7.1 General........................................................................................................................................................13
7.2 PDO transmission types ..............................................................................................................................13
7.3 COB-ID........................................................................................................................................................13
7.4 PDO mapping..............................................................................................................................................13
7.4.1 Mappable objects.........................................................................................................................................13
7.4.2 Default mapping of absolute encoder..........................................................................................................14
7.5 Timing..........................................................................................................................................................14
7.6 Exceptions of accurate calculation of process data .....................................................................................14
8Emergency Service....................................................................................................................................15
8.1 General........................................................................................................................................................15
8.2 COB-ID........................................................................................................................................................15
8.3 Emergency message...................................................................................................................................15
8.4 Error register................................................................................................................................................15
8.4.1 Communication error...................................................................................................................................15
8.4.2 Temperature error........................................................................................................................................15
8.4.3 Generic error................................................................................................................................................15
9Alarms, warnings, errors, emergency messages and error behavior...................................................16

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9.1 Non-redundant encoder...............................................................................................................................16
9.2 Redundant encoder.....................................................................................................................................17
9.3 Error behavior..............................................................................................................................................17
9.4 Error Injection ..............................................................................................................................................18
9.5 Encoder Diagnostic Sources........................................................................................................................19
10 Heartbeat Service ......................................................................................................................................20
10.1 General........................................................................................................................................................20
10.2 COB-ID........................................................................................................................................................20
10.3 Timing..........................................................................................................................................................20
11 LSS slave....................................................................................................................................................21
11.1 General........................................................................................................................................................21
11.2 Supported commands..................................................................................................................................21
11.3 LSS address................................................................................................................................................21
12 Object directory.........................................................................................................................................22
12.1 Communication Profile Area........................................................................................................................22
12.2 Manufacturer Specific Profile Area ..............................................................................................................23
12.3 Standardized Device Profile Area................................................................................................................25
13 Applications...............................................................................................................................................26
14 Discrepancies to the CIA specifications..................................................................................................27
A. Appendix ....................................................................................................................................................28
a. Pin Assignments..........................................................................................................................................28

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1 Version overview
This document is subject to changes. In order to have the most current version please download on www.baumer.com
Document
index
Date
Firmware
version
CANopen
Revision
Number
Obj. 1018
Author
Changes
0001
11.07.17
From V01-03
0003.0000h
blk
Initial version replaces all draft documents
0002
11.9.17
From V01-04
0003.0000h
bwm
- Scaling function expanded up to 16Bit ST
- New „speed Filter time“ default value of 50ms (Object
4001h) range reduced from 4000 ms to 500 ms
- Comment “Emergencies are not resent after NMT
reset” removed in chapter 5.1.1
0003
12.03.18
From V01-05
0003.0000h
zest
- New profile version identification
- Comment “Emergencies are not resent after NMT
communication reset” removed chapter 5.1.2
- New function electronic gear, chapter 4.4.5 (Obj. 2001h)
- Reworked chapter 8 and 9
- New function error injection, chapter 9.4
- Added chapter 4.5.2 Node Id for redundant Encoder
0004
29.03.18
From V01-05
0003.0000h
zest
- fixed wrong sub-indexes in chapter 9.4
- fixed data flow of magnetic field strength and magnetic
field sequence in Figure 6
- fixed wrong object number in table of chapter 7.4.1
- comment added electronic gear function for non-
redundant encoders

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2 Safety and operating instructions
Intended use
The encoder is a precision measuring device that is used to record positions and speeds. It provides measuring
values as electronic output signals for the subsequently connected device. It must not be used for any other purpose.
Unless this product is specially labeled, it may not be used for operation in potentially explosive environments.
Make sure by appropriate safety measures, that in case of error or failure of the encoder, no danger to persons or
damage to the system or operating facilities occurs.
Personnel qualification
Installation and assembly of this product may be performed only by a person qualified in electronics and precision
mechanics.
Maintenance
The encoder is maintenance-free and must not be opened up nor mechanically or electronically modified. Opening up
the encoder can lead to injury.
Disposal
The encoder contains electronic components. At its disposal, local environmental guidelines must be followed.
Mounting
Solid shaft: Do not connect encoder shaft and drive shaft rigidly. Connect drive and encoder shaft with a suitable
coupling.
Hollow shaft: Open clamping ring completely before mounting the encoder. Foreign objects must be kept at a
sufficient distance from the stator coupling. The stator coupling is not allowed to have any contact to the encoder or
the machine except at the mounting points.
Electrical commissioning
Do not proceed any electrical modifications at the encoder.
Do not proceed any wiring work while encoder is live.
Do not remove or plug on connector whilst under power supply.
Ensure that the entire system is installed in line with EMC/EMI requirements. Operating environment and wiring have
an impact on the electromagnetic compatibility of the encoder. Install encoder and supply cables separately or far
away from sources with high emitted interference (frequency converters, contactors, etc.).
When working with consumers with high emitted interference provide separate encoder supply voltage.
Completely shield encoder housing and connecting cables.
Connect encoder to protective earth (PE) using shielded cables. The braided shield must be connected to the cable
gland or connector. Ideally, aim at dual connection to protective earth (PE), i.e. housing by mechanical assembly and
cable shield by the downstream devices.
Supplementary information
The present manual is intended as a supplement to already existing documentation (e.g. catalogues, data sheets or
mounting instructions).

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3 Product Assignment
3.1 Absolute encoder
Product
Product-Code
Device Name
EDS-file
Absolute encoder multiturn
(single channel and redundant version)
0x0070
EAMxxx MT
EAMxxx_0x0070.eds
Absolute encoder singleturn
0x0071
EAMxxx ST
EAMxxx_0x0071.eds

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4 System Overview
4.1 General
The encoder is a rotary measuring system with a CANopen interface. It supports scaling and presetting.
In consideration of “CAN in Automation” (CiA) Profile 406 for Encoders, it’s an Absolute rotary encoder - Class C2.
The redundant encoders are galvanically isolated, for non-redundant encoders galvanical isolation on request.
4.2 Supported Profiles
Following CANopen profiles are supported:
CiA 301 / Version 4.1 (Communication)
CiA 305 / Version 1.0 (LSS)
CiA 406 / Version 3.2 (Encoder Profile)
4.3 Supported CANopen Services
Following CANopen services are supported:
1 Network Management (according to CiA 301)
1 SDO Server (according to CiA 301)
2 TPDOs (according to CiA 301/CiA 406)
1 Emergency Producer (according to CiA 301/CiA 406)
1 Heartbeat Producer (according to CiA 301)
1 Node guarding (according to CiA 301)
1 LSS Client (according to CiA 305)
4.4 Function Principle
4.4.1 Overview
Figure 1: Function principle overview
Direction
Correction User Zero Point (Offset)
Physical
Position
Speed
Calculating Scaling
Scaling[Inc] [Inc] [Inc]
[Inc]
[Inc/s]
[Steps]
[Steps/s]
4.4.2 Scaling
The scaling of speed and position objects can be adapted in the object 6001h or object 6002h.
Relationship between object 6001h and 6002h:
Total measuring range = Measuring units per revolution x Number of distinguishable revolutions
(Value Object 6002h) = (Value Object 6001h) x (Value Object 6502h)

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4.4.3 Position Range
The range of the position is depending on the position step setting (object 6001h-0 and Object 6002h-0). The total range
can be read from object 6002h-0. The range is 0…(Value Object 6002h)-1.
4.4.4 Speed range
There are two objects, which can be used for the speed information.
0x6030-1
This object provides a 32-Bit Speed information, which has the unit [Steps/sec].
The range for object 6030h-1 Speed encoder A is -8000’0000h…7FFF’FFFFh.
If the scaled speed value exceeds this range, the output is -8000’0000h or 7FFF’FFFFh (Saturated Logic).
Figure 2: Speed range
0000 0000h
FFFF FFFFh
Output
Speed
7FFF FFFFh
8000 0000h
0x2120-1
This object provides a 16-Bit Speed information, which has the unit [rpm].
The range for object 2120h-1 Speed encoder A is -8000h…7FFF’h.
If the scaled speed value exceeds this range, the output is -8000h or 7FFFh (Saturated Logic).
Figure 3: Speed range
0000h
FFFFh
Output
Speed
7FFFh
8000h

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4.4.5 Electronic gear function
The electronic gear function divides the position value by the gear factor. Therefore it transforms the position value into
the view of the application:
𝑎𝑝𝑝𝑙𝑖𝑐𝑎𝑡𝑖𝑜𝑛 𝑝𝑜𝑠𝑖𝑡𝑖𝑜𝑛 = 𝑒𝑛𝑐𝑜𝑑𝑒𝑟 𝑝𝑜𝑠𝑖𝑡𝑖𝑜𝑛
𝑖
The gear factor (i) is defined as followed:
𝑖 = 𝐺𝑒𝑎𝑟𝑉𝑎𝑙𝑢𝑒1
𝐺𝑒𝑎𝑟𝑉𝑎𝑙𝑢𝑒2
There are three objects that should be configured to use the electronic gear function.
0x2001-1 Enable
Set this object to the value “2”to enable the electronic gear function, while the value “1” disable it.
0x2001-2 Gear Value 1
This Object defines the numerator of the gear factor.
The range of this integer value is 1…32767.
0x2001-3 Gear Value 2
This Object defines the denominator of the gear factor.
The range of this integer value is 1…32767.
Figure 4: Example configuration of gear values
obj 2001h-3h
GearValue2
eg. 8 teeth
Example
discrete gear with number of teeth
obj 2001h-2h
GearValue1
eg. 17 teeth Motor
Gear
gear ratio i =6.25
1=625
100
obj 2001h-2h
GearValue1
eg. 625
obj 2001h-3h
GearValue2
eg. 100
i = 6.25
Example
gear box
Encoder
Encoder
Application
Application
Limitations
A useful gear ratio is greater than 0.125, while a gear ratio smaller than 1 may result in higher signal noise.
The maximum encoder turns in unpowered operation must be smaller than 229 (536’870’912) turns.
The electronic gear function is useful for multiturn encoders. In case of singleturn encoders, the position value gets lost
after a power cycle.

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4.5 Encoder with redundant design
In case of redundant design both encoder channels are connected with the same connector to the network. This means
both nodes do acknowledge the message of each other, without being connected to a network.
For encoders with redundant design the battery voltage is monitored during power off. Following minimum power off time
is required for proper detection:
Warning 0x6505 BattLow: Batterie low charge Minimum power-off time: 11 seconds
Alarm 0x6503 BattEmpt: Battery empty Minimum power off time: 1 second
4.5.1 Baudrate
Both encoders shall be configured with the same baudrate to avoid bus collisions.
Note:
In the case that the encoders are configured with different baudrates, do following sequence:
1. Configure CAN Master with the higher baudrate of the encoder
2. Reconfigure the node with this higher baudrate to the lower baudrate again (object 0x2100)
3. Save the baudrate according chapter 6.2.1
4. Performing a NMT Reset
5. Reconfigure CAN Master with lower baudrate (object 0x2100)
6. Reconfigure both nodes to the desired baudrate
7. Save both baudrates according chapter 6.2.1
4.5.2 Node Id
Both encoders shall be configured with different Node Id’s which are not reserved by other nodes, to avoid bus collisions.
Note:
In the case that the encoders are configured with the same node id, do following sequence:
1. Configure CAN Master with the used baudrate and node id of the encoders
2. Request a parameter restore to factory default (object 0x1011-01) according chapter 6.2.2
3. Performing a NMT Reset
4. Reconfigure CAN Master with the factory default baudrate
5. Reconfigure both nodes to the desired, different node id’s
6. Save both node id’s according chapter 6.2.1
4.6 Encoder as standard component with embedded software used in safety functions
If this standard encoder is used in safety functions, please request the according “Application Note MAGRES EAM” for
further information.

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5 NMT Service
5.1 Supported commands
Following NMT commands are supported:
NMT Frame:
COB ID
Byte 0
node ID
xx
5.1.1 NMT Reset
This NMT command performs a complete reset of the encoder, which can take up to 170 ms until the new bootup-
message is sent (restarting of the micro controller, be aware that all unsaved configurations will be lost).
5.1.2 NMT Communication Reset
This NMT command performs a restarting of the CAN Controller, which can take up to 5 ms until the new bootup-
message is sent (be aware that all unsaved configurations will be lost).
5.2 Boot-up message
After a power-on or NMT reset, the device will send a Boot-up message.
COB ID
Byte 0
700h + node ID
00
NMT Command
Byte 0
NMT Start
0x01
NMT Preoperational
0x80
NMT Stop
0x02
NMT Reset
0x81
NMT Communication Reset
0x82

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6 SDO service
6.1 General
The device supports 1 SDO server (Expedited read/write, segmented read)
6.2 Save/load parameters
The device supports saving parameters to a non-volatile memory.
6.2.1 Save
Writing “save” to 1010h-x saves the corresponding objects to the non-volatile memory. After a reset or power-on, the
parameters are loaded from the non-volatile memory.
The SDO request to 1010h-x is answered after the saving of the parameters is performed.
6.2.2 Load
Writing “load” to 1011h-x restores the corresponding objects. The parameters are restored after a reset or power-on.
6.2.3 Safe non-volatile operation
To ensure safe non-volatile operation, the user must ensure no power interruption immediately after sending of the save
command to object 1010h-x (otherwise, the factory values are restored at the next power up).

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7 PDO Service
7.1 General
The device supports TPDO1 and TPDO2. PDOs are only transmitted in NMT operational mode.
7.2 PDO transmission types
The following transmission types are supported (object 180xh-2):
Synchronous transmission (1-240)
Asynchronous transmission (255)
Manufacturer transmission (254)
RTR-only transmission, event-driven (253)
Both PDOs support all transmission types.
Transmission type 253: The PDO is only transmitted on request (remote transmission request).
Transmission type 255 and 254: The PDO is transmitted timer driven. The time interval between 2 PDOs can be
adapted in the object 180xh-5
Transmission type 1-240: The PDO is transmitted after the n-th sync frame.
Transmission type 1: The PDO is transmitted after one sync frame.
Transmission type 2: The PDO is transmitted after two sync frames.
etc.
7.3 COB-ID
The COB-ID for both PDOs is changeable (in Object 180xh-1)
Default Values are:
TPDO1: 180h + node ID
TPDO2: 280h + node ID
Changes will be applied immediately.
The COB-ID is stored internally as a difference to the default COB-ID. Example:
Node ID: 1 COB-ID TPDO1: 181h (Default value)
COB-ID TPDO1: 187h (Changed by user)
Node ID: 9 COB-ID TPDO1: 189h (Adapted automatic)
7.4 PDO mapping
The encoder supports dynamic mapping.
7.4.1 Mappable objects
The following objects are mappable:
Mapping content
Mapping entry
Description
Position encoder
0x60040020
Object 6004h Subindex 00h, data length 32 Bit
Speed encoder
0x60300120
Object 6030h Subindex 01h, data length 32 Bit
Alarms
0x65030010
Object 6503h Subindex 00h, data length 16 Bit
Warnings
0x65050010
Object 6505h Subindex 00h, data length 16 Bit
Diagnostic
0x21170010
Object 2117h Subindex 00h, data length 16 Bit
Speed [rpm]
0x21180010
Object 2118h Subindex 00h, data length 16 Bit
Time Stamp
0x21200010
Object 2120h Subindex 00h, data length 16 Bit
To change PDO mapping, disabling the mapping by writing 0 to 0x1A0x-0 is required first. Write the desired mapping
entry and enable the mapping again by writing the number of PDO contents to 0x1A0x-0.

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7.4.2 Default mapping of absolute encoder
The mappings for both PDOs are the same. The position will be transmitted in byte 0..3.
ID
DLC
Byte 0
Byte 1
Byte 2
Byte 3
181h/281h
4
xx
xx
xx
xx
Byte 0...3: Position (Object 6004h)
7.5 Timing
The minimal cycle time for TPDOs is 1 ms.
7.6 Exceptions of accurate calculation of process data
The following operations could interrupt the accurate calculation of process data such as position, speed, warnings and
alarms:
- Changing the scaling parameters

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8 Emergency Service
8.1 General
If there is an error on the device, the device commits an emergency message and sets the corresponding bits in the error
register (Object 1001h).
Error codes are accessible by the error field (object 1003h-x). A history of maximal 8 error codes is stored in the error
field.
8.2 COB-ID
The COB-ID for the emergency message can be modified in object 1014h.
Default Value: 80h + node ID
Changes will be applied immediately.
The COB-ID is stored internally as a difference to the default COB-ID. Example:
Node ID: 1 COB-ID Emergency: 81h (Default value)
COB-ID Emergency: 87h (Changed by user)
Node ID: 3 COB-ID Emergency: 89h (Adapted automatic)
8.3 Emergency message
The format of the emergency messages is according to CiA 301. Additionally, the encoder sends the warning and alarm
fields (object 6503h, 6505h).
The emergency message is transmitted if an error is indicated in the error register.
COB-ID
DLC
Byte0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
80h+node ID
8
Error code
Error register
(object 1001h)
Manufacturer specific
Alarms 6503h
Warning 6505h
Not used
8.4 Error register
Error register (object 1001h)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
-
-
-
Communication error
Temperature error
Generic error
8.4.1 Communication error
Communication errors are indicated if the internal CAN message buffers are overflowed or there are malformed CAN
frames on the bus. After a communication error the corresponding operation (described in object 1029h-1) is executed.
8.4.2 Temperature error
This error is indicated, when the internal temperature of the encoder is above a certain threshold level, at which the
position can’t be guaranteed.
8.4.3 Generic error
A generic error is indicated for all other errors.
An encoder specific alarm or error will also cause a generic error.
After a generic error the corresponding operation (described in object 1029h-2) is executed.

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9 Alarms, warnings, errors, emergency messages and error behavior
Figure 5 and Figure 6 show the surveillance mechanisms. If one of them fails, an alarm or warning will be indicated. The
behavior upon an error can be defined and is described in chapter 8.3.
9.1 Non-redundant encoder
Figure 5: Dataflow of Error, Alarm, Warning, Diagnostic and Emergency messages
D
R
S
D
R
S
D
R
S
D
R
S
D
R
S
D
R
S
D
R
S
Error Behaviour
1029h-1h
Reset
Bit 0: Generic Position Alarm
Bit 12: Position Data not valid
Bit 0: Generic Error
Bit 4: Communication ErrorD
R
S
OR
OR
CAN-Controller
Bus Passive
Bus Off
Bus Warning
Bus Active
RX Buffer Overflow
Error Behaviour
1029h-2h
Alarms 6503h
Error Register 1001h
Warnings 6505h
Bit 4: Battery charge low
Bit 0: Frequency exceeded
Bit 2: CPU Watchdog
Bit 3: Operating time limit
Bit 12: Mounting Error
Bit 13: Multiturn System
Bit 14: Singleturn System
Bit 15: Multiturn Supervision
Bit 3: Temperature
Bit 15: Battery empty
Only at
Startup
Only at
Startup
OR
OR
Error Behaviour
1029h-3h
Error Behaviour
1029h-1h
OR
16-Bit Encoder Diagnostics 2117h
Bit 12: Communication Error
Bit 13: Temperature
Bit 15: Battery empty
Bit 14: Position Data not valid
Bit 3: Battery charge low
Bit 0: Frequency exceeded
Bit 1: CPU Watchdog
Bit 2: Operating time limit
Bit 4: Mounting Error
Bit 5: Multiturn System
Bit 6: Singleturn System
Bit 7: Multiturn Supervision
Bit 1: Commissioning diagnostic
Only at
Startup
Only at
Runtime
Only at
Runtime
Bit 11: Commissioning diagnostic
Bit 10: Generic Position Alarm
Emergency Message
Only at
Runtime
D
R
S
Multiturn Communication Monitor
Speed Monitoring
Reset Reason Watchdog
Battery Monitoring Warning
Temperature Montioring
Battery Monitoring Error
Multiturn Magnetic Field sequence
Singleturn Magnetic Field strength
Singleturn/Multiturn Supervision
CAN Node Guarding or Heartbeat
Non-Volatile Data Manager

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9.2 Redundant encoder
Figure 6: Dataflow of Error, Alarm, Warning, Diagnostic and Emergency messages (each node)
D
R
S
D
R
S
D
R
S
D
R
S
D
R
S
D
R
S
D
R
S
Error Behaviour
1029h-1h
Reset
Bit 0: Generic Position Alarm
Bit 12: Position Data not valid
Bit 0: Generic Error
Bit 4: Communication ErrorD
R
S
OR
OR
CAN-Controller
Bus Passive
Bus Off
Bus Warning
Bus Active
RX Buffer Overflow
Error Behaviour
1029h-2h
Alarms 6503h
Error Register 1001h
Warnings 6505h
Bit 4: Battery charge low
Bit 0: Frequency exceeded
Bit 2: CPU Watchdog
Bit 3: Operating time limit
Bit 12: Mounting Error
Bit 13: Multiturn System
Bit 14: Singleturn System
Bit 15: Multiturn Supervision
Bit 3: Temperature
Bit 15: Battery empty
Only at
Startup
Only at
Startup
OR
OR
Error Behaviour
1029h-3h
Error Behaviour
1029h-1h
OR
16-Bit Encoder Diagnostics 2117h
Bit 12: Communication Error
Bit 13: Temperature
Bit 15: Battery empty
Bit 14: Position Data not valid
Bit 3: Battery charge low
Bit 0: Frequency exceeded
Bit 1: CPU Watchdog
Bit 2: Operating time limit
Bit 4: Mounting Error
Bit 5: Multiturn System
Bit 6: Singleturn System
Bit 7: Multiturn Supervision
Bit 1: Commissioning diagnostic
Only at
Startup
Only at
Runtime
Only at
Runtime
Bit 11: Commissioning diagnostic
Bit 10: Generic Position Alarm
Emergency Message
Only at
Runtime
D
R
S
Multiturn Communication Monitor
Speed Monitoring
Reset Reason Watchdog
Battery Monitoring Warning
Temperature Montioring
Battery Monitoring Error
Multiturn Magnetic Field sequence
Singleturn Magnetic Field strength
Singleturn/Multiturn Supervision
CAN Node Guarding or Heartbeat
Non-Volatile Data Manager
D
R
S
Multiturn Power On Reset
OR
no
no
Multiturn Magnetic Field strength
OR
Only at
Startup
Only at
Runtime
9.3 Error behavior
The error behaviors are executed when the corresponding bit in object 1001 Error register is set and the device is in the
NMT-State Operational.
Example:
The error behavior 1029h-2 is set to “Change to Pre-Operational” (0). The device is in NMT state Operational
1. Generic error bit is set.
→The device changes to Pre-Operational
2. The device is forced to NMT state Operational with NMT command Start
→The device changes again to Pre-Operational if the generic error bit is not cleared.

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9.4 Error Injection
The error injection allows testing a system behavior in case of an encoder malfunction.
There are two objects that can be used for test purposes to simulate different encoder behaviors.
0x2116-1 Diagnostic Injection
An error injection code, written on this object simulates a diagnostic source according to chapter 9.5.and activates the
corresponding signaling. For error injection codes please refer to chapter 9.5.
0x2116-2 Position Offset Injection
The value written to this object is added to the encoder position value, for test purposes

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9.5 Encoder Diagnostic Sources
The following tables provide a summary of all diagnostic sources supported by the encoder.
Source Diagnostic Source
Description Additional Information
Emergency Error Code Error Code transmitted within the emergency message
Signaling Object and bit number where the diagnostic source gets visible
Appearance Describes when the signaling may occur
Reset Behavior Describes when the signaling of a diagnostic source gets reset
Error Injection Code Error injection code to simulate a diagnostic source for object 2116-2h
Source
Description
Emergency
Error Code
Appearance
Signaling
Reset
Behavior
Error
Injection
Code
Error reset or no error
An emergency message with
error code 0x0000 will be
transmitted when no more errors
are present
0x0000
at runtime
-
-
0x0000’0000
Temperature Monitoring
Temperature out of range
0x4200
at runtime
0x1001 Error, Bit 0,3
at runtime
0x0008’0020
Non-Volatile Data
Manager
Problem with the non-volatile
memory.
0x5100
at startup
0x1001 Error, Bit 0
0x6503 Alarms, Bit 0,1
at reboot
0x0001’0024
at runtime
0x6505 Warning, Bit 3
at reboot
0x0008’0024
Reset Reason Watchdog
SW-reset due to a watchdog timer
issue
0x6100
at runtime
0x6505 Warning, Bit 2
at reboot
0x0008’0025
CAN-Controller Bus
Warning
Communication error (bus
warning)
0x8100
at runtime
0x1001 Error, Bit 4
at runtime
-
CAN-Controller RX Buffer
Overflow
CAN receive buffer overflow
0x8110
at runtime
-
at runtime
-
CAN-Controller Bus
Passive
CAN in error passive mode
0x8120
at runtime
0x1001 Error, Bit 4
at runtime
-
CAN-Controller Bus Off
CAN in bus-off mode
-
at runtime
0x1001 Error, Bit 4
at runtime
-
Lifeguard or Heartbeat
Life guard error or heartbeat error
0x8130
at runtime
-
at runtime
-
Battery Monitoring
Warning
(non-redundant encoder)
Battery low of the Multiturn
system. Encoder should be
replaced
0xFF00
at runtime
0x6505 Warning, Bit 4
at runtime
0x0008’0005
Battery Monitoring
Warning
(redundant encoder)
Battery low of the Multiturn
system. Encoder should be
replaced
0xFF00
at startup
0x6505 Warning, Bit 4
at reboot
0x0004’001C
Battery Monitoring Error
(Battery Empty)
Battery of the Multiturn system is
empty. Absolute position can be
incorrect after restart, encoder
should to be replaced
0xFF01
at startup
0x1001 Error, Bit 0
0x6503 Alarms, Bit 0,15
at reboot
no reset (*1
0x0001’0004
at runtime
0x6505 Warning, Bit 13
at reboot
no reset (*1
0x0008’0004
Multiturn Magnetic Field
sequence
(non-redundant encoder)
Incorrect sequence of the
magnetic field (i.e. due to weak or
disturbed magnetic field)
0xFF02
at startup
0x6505 Warning, Bit 12
at reboot
0x0004’0003
at runtime
0x6505 Warning, Bit 12
at reboot
0x0008’0003
Multiturn Magnetic Field
sequence
(redundant encoder)
Incorrect sequence of the
magnetic field (i.e. due to weak or
disturbed magnetic field)
0xFF02
at startup
0x1001 Error, Bit 0
0x6503 Alarms, Bit 0
no reset
0x0001’001A
at runtime
0x6505 Warning, Bit 12
no reset
0x0008’001A
Multiturn Magnetic Field
strength
(redundant encoder)
Magnetic field too low
0xFF03
at startup
0x1001 Error, Bit 0
0x6503 Alarms, Bit 0
no reset
0x0001’001B
at runtime
0x6505 Warning, Bit 12
no reset
0x0008’001B
Multiturn Communication
Monitor
Internal communication error
0xFF04
at startup
0x1001 Error, Bit 0
0x6503 Alarms, Bit 0,12
at reboot
0x0001’0009
at runtime
0x6505 Warning, Bit 13
at reboot
0x0008’0009
Speed Monitoring
Maximum rotation speed
exceeded
0xFF05
at runtime
0x6505 Warning, Bit 0
at reboot
0x0008’0021
Singleturn Magnetic Field
strength
Amplitude of Singleturn sensor
out of range (i.e. due to weak or
disturbed magnetic field)
0xFF06
at runtime
0x6505 Warning, Bit 14
at reboot
0x0008’0022
Singleturn/Multiturn
Supervision
Multiturn- and Singleturn-sensor
out of sync
0xFF07
at runtime
0x6505 Warning, Bit 15
at reboot
0x0008’0023
Multiturn Power On Reset
(redundant encoder)
Power-on-reset during powered-
or unpowered operation (i.e. when
battery is empty). Absolute
position can be incorrect after
restart, encoder should to be
replaced.
0xFF17
at startup
0x1001 Error, Bit 0
0x6503 Alarms, Bit 0,15
no reset
0x0001’0014
at runtime
0x6505 Warning, Bit 13
no reset
0x0008’0014
-
Manufacturer reserved error
codes
0xFF0A…
0xFF16
0xFF17…
0xFFFF
-
-
-
-
Remark: In case of any diagnostic source appeared, absolute position may be incorrect.
(1: No reset of diagnostic source in case of encoder with redundant design

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10 Heartbeat Service
10.1 General
The device supports a heartbeat producer according CiA 301.
10.2 COB-ID
The COB-ID for the heartbeat message is 700h + node ID.
10.3 Timing
The minimal cycle time for heartbeat messages is 1 ms, which can be configured with object 1017h-0