Product Information

EIB 2391 S
External Interface Box09/2022

EIB 2391 S

External interface box with firmware version 15• Input: HEIDENHAIN encoders with EnDat22 interface• Output: DRIVE-CLiQ interface

Encoder requirements
The EIB 2391 S makes it possible toconnect encoders with the EnDat22
ordering designation to the DRIVE-CLiQinterface.
Depending on the firmware version of theEIB and the downstream electronics, it
may be possible to connect other encoders
with an EnDat22 interface. For more
information, please contact HEIDENHAIN
or the manufacturer of the downstream
electronics.
After switch-on, the EIB checks various
characteristics of the connected encoder
and automatically adapts itself to it. If theencoder does not meet the necessary
requirements, an error message is issued
via the DRIVE-CLiQ interface.

DRIVE-CLiQ is a registered trademark ofSiemens AG

Compatible with EIB 2391 S
Absolute enclosed linear encoders, e.g.,
LC 100, LC 400, LC 200



Absolute exposed linear encoders, e.g.,
LIC 4100, LIC 3100, LIC 2100

Absolute angle encoders, e.g.,
RCN 2001, RCN 5001, RCN 8001, RCN 6000
ROC 2000, ROC 7000
ECN 2000
ECA 4000
ECM 2400
MRP 2000, MRP 5000, MRP 8000
SRP 5000









Absolute singleturn rotary encoders, e.g.,
ECN 100
ECI 100, ECI 1100, ECI 1300



Absolute multiturn rotary encoders, e.g.,
EQI 1100, EQI 1300

Length gauges, e.g.,
AT 3000
AT 1200

Incremental EnDat encoders, e.g.,
ERM 2400, LIP 200, EIB 100, EIB 300, EIB 1500–

Encoders with a battery-buffered revolution
counter, e.g.,
EBI 100, EBI 1100, EBI 4000

–Online diagnostics
With EnDat 2.2 encoders, valuation
numbers can be read cyclically from theencoder in order to evaluate itsfunctionality. These valuation numbers
indicate the encoder’s current status andcan be used to determine its “functionreserves.” These function reserves are alsotransmitted via the DRIVE‑CLiQ interface
and can be displayed in the higher-levelcontrol. Further information is available
from HEIDENHAIN upon request.
Temperature sensor information
The EIB 2391 S does not have atemperature sensor input, but it canevaluate the temperature sensor
information from connected EnDat
encoders and pass it along via theDRIVE-CLiQ interface. Information fromup to four temperature sensors can betransmitted. The EIB 2391 S supports
transmission from:• One internal temperature sensor (thevalue is provided in the DRIVE-CLiQ
parameter "Encoder Temperature")• Up to three external temperature
sensors (the values are provided in theDRIVE-CLiQ parameter "Motortemperature 2-4"; the highest calculated
value of the three sensors is output inthe parameter "Motor temperature 1")
The EIB 2391 S can simultaneously
process the information of one externaland one internal temperature sensor. If
more than one external temperature
sensor is used, then the value of theinternal temperature sensor can no longer
be provided.
The evaluation of the connected sensors
can be set via the DRIVE‑CLiQ interface,depending on the settings of the EnDatencoder. This enables evaluation of
KTY 84-130, PT 1000 and PTC temperature
sensors. For more information, pleasecontact HEIDENHAIN.
For more information about the availability
and mapping of the temperature sensor
information, please refer to thedocumentation of the connected
EnDat encoder.

2

Product Information EIB 2391 S    09/2022

Product Information EIB 2391 S    09/2022

Firmware versions
Two firmware versions are available for theEIB 2391 S. The firmware version can beread out via the DRIVE-CLiQ parameter“Act_FW_Version” (Index 0). The final twodigits of the displayed value are decisive.
The following information is given withreference to these two digits.
EIB 2391 S with ID 768200-01• Delivered with firmware version 11• An update from firmware version 11 toversion 15 is possible via thedownstream electronics (DRIVE-CLiQ).
• Will be replaced by EIB 2391 S withID 768200-02
EIB 2391 S with ID 768200-02• Delivered with firmware version 15• Replaces the EIB 2391 S with ID
768200-01 because it is backwards
compatible
Please note:
A downgrade from firmware version 15 toversion 11 is not permissible
Functional safety
The EIB can be used in safety-related
applications, but only if functional safety is
supported by the connected encoder. The
characteristics pertaining to functionalsafety are largely determined by theconnected encoder and the downstream
electronics (if required, contact themanufacturer; the EIB passes on themain characteristics of the encoder).
The safe position is also largely
determined by the connected encoder
and the downstream electronics. The EIB
itself does not influence the safe position.
The “safe position” and “safety-relatedmeasuring step (SM)” of the connected
EnDat encoder are required in order forthe safe position to be calculated. For
more information, please contact themanufacturer of the downstream
electronics.
The PFH value of the overall system(EIB 2391 S + encoder) is the sum of thePFH values of the EIB 2391 S and theconnected encoder. For information about
the encoder, please refer to its
documentation (Product Information
document, brochure and mounting
instructions). The EIB 2391 S is designed
for a service life of 20 years (in accordancewith ISO 13849). For more information
about using the EIB and the encoder insafety-related applications, please contact
the manufacturer of the downstream
electronics.

Limitations
For linear encoders with measuring lengths
greater than 50 m, there may be limitations
to the output of the commutation angle via
the DRIVE‑CLiQ interface under certain
circumstances. Please contact
HEIDENHAIN in such cases. HEIDENHAINrecommends setting the datum shift in thedownstream electronics. If the datum shift
is used in the EnDat area, then it must be
less than 3 m and not result in position
values less than zero.
TIME_MAX_ACTVAL
The calculation time TIME_MAX_ACTVAL
specifies the earliest time (relative to therequest time) after which data transferfrom the encoder to the control can begin.
The value depends on the parameters of
the connected encoder (calculation timeand resolution) and the cable length. Therecan also be limitations with regard tosetting the cycle times. For moreinformation, please refer to thedocumentation of the downstream
electronics (DRIVE‑CLiQ).

Please note:
In order for the EIB 2391 S to beoperated in safety-related applications,the software must be designed inconformity with the downstream
DRIVE‑CLiQ electronics. For more
information on availability, please contact
the manufacturer.

DRIVE-CLiQ is a registered trademark ofSiemens AG3

Interfaces

Specifications

EIB 2391 S

Functional safety

Depending on the connected encoder and downstream electronics, suitable for applications with up to:• SIL 2 as per EN 61508 (further basis for testing: EN 61800-5-2)• Category 3, PL d, in accordance with EN ISO 13849-1:2015

PFH26 · 10

Safe position

Determined by the connected encoder and the downstream electronics (including through theconfiguration); the EIB has no influence on the safe position–9(with respect to an operating elevation of  1000 m above sea level)

Input
Interface

EnDat 2.2

Ordering designation

EnDat22 (note the Encoder requirements)

Electrical connection

8-pin M12 connector (female)

Encoder supply voltage (UP2)DC 5.1 V ±0.15 V, max. 2500 mW

Pin layout of the EIB input
Mating connector
8-pin M12 coupling (male)Power supply

EnDat

Serial data transmission

82513476UP2Sensor UP20V

Sensor 0 V

DATA

DATA

CLOCK

CLOCK

Brown/GreenBlue

White/GreenWhite

Gray

Pink

VioletYellow2)

Cable length 100 mPin layout of the EIB output

OutputInterface

DRIVE-CLiQ

Firmware01.32.27.15

SINAMICS, SIMOTION1)≥ V4.6HF31)

On the EIB 2391 S
8-pin M12 flange socket (male)Power supply≥ V4.7 SP1 HF1SINUMERIK with safety1)

Serial data transmission

15347628UP10VRXPRXN

TXP

TXN//

Adapter cableWith 8-pin M12 connector (female) and RJ45
Siemens connector (IP67); cable length: 1 m¬ 6.8 mm

1094652-01

Adapter cableWith 8-pin M12 connector (female) and RJ45
Siemens connector (IP20)¬ 6.8 mm1093042-xx

Connecting cableWith 8-pin M12 connector (female) and8-pin M12 coupling (male)¬ 6.8 mm822504-xx

DRIVECLiQ

SINUMERIK without safety≥ V4.5 SP2 HF4Calculation time
TIME_MAX_ACTVAL

Refer to TIME_MAX_ACTVAL on page 3

Cable shield connected to housing; UP = Power supply voltage
Sensor: The sense line is connected in the EIB with the corresponding power line
Vacant pins or wires must not be used!

Ordering designation

DQ01

Adapter cables and connecting cable for DRIVE-CLiQ

Electrical connection

8-pin M12 connector (male)

PUR [2(2 x 0.17 mm2) + (2 x 0.24 mm2)]; AP = 0.24 mm2

Cable length 95 m3)

Supply voltage (UP1)

DC 24 V (16.0 V to 28.8 V)(up to DC 36.0 V possible without impairing functional safety)

Power consumption

Maximum At 16.0 V:  4.1 W
At 28.8 V:  4.35 W
TypicalAt 24 V: 1.1 W + 1.15 · PMtyp (with PMtyp = Typical power consumption of the encoder)

Elevation≤ 1000 m

Operating temperature

0 °C to 60 °C

Storage temperature–30 °C to 70 °C

Vibration 55 to 2000 Hz
Shock 11 ms

100 m/s (IEC 60068-2-6)
200 m/s2 (IEC 60068-2-27)

Protection rating EN 60529

IP65

Mass

 180 g

AP: Cross section of power supply lines

DRIVE-CLiQ is a registered trademark of Siemens AG21)	Information from Siemens as per the document “Certified encoders with DRIVE-CLiQ Dependencies on SIMOTION / SINUMERIK andSINAMICS Hardware and Software versions” (version: 04/2019)2)
With HEIDENHAIN cable. Comply with the supply voltage at the encoder3)
Depending on the output cable; the plug connection to the EIB is to be considered a DRIVE-CLiQ coupling.

DR. JOHANNES HEIDENHAIN GmbH
Dr.-Johannes-Heidenhain-Straße 583301 Traunreut, Germany +49 8669 31-0
 +49 8669 32-5061
info@heidenhain.dewww.heidenhain.com

DRIVE-CLiQ is a registered trademark of Siemens AG4

Miscellaneous

Product Information EIB 2391 S    09/2022

807724 · 06 · A · 02 · 09/2022 · PDF

This Product Information document supersedes all previous editions, which thereby
become invalid. The basis for ordering from HEIDENHAIN is always the ProductInformation document edition valid when the order is placed.
More information:
Comply with the requirements described in the following documents to ensure correctand intended operation:• Brochure, Product Information, and Mounting Instructions of the connected encoder• Brochure: Interfaces of HEIDENHAIN Encoders			1078628-xx• Brochure: Cables and Connectors						1206103-xx• Technical Information: Safety-Related Position Measuring Systems	 596632• Operating Instructions: EIB 2391 S					1380729
For implementation in a control or inverter, comply with the following:• Information from the manufacturer of the downstream electronics about the use of
the EIB 2391 S in safety-related applications