Festo CPX-E- DI Series User manual

8126703
CPX-E-...DI-...
Digital input module
8126703
2020-01a
[8126705]
Description| Function,
Parameterisation

Translation of the original instructions
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1 About this Document................................................................................................... 4
1.1 Further applicable documents...................................................................................... 4
1.2 Target group................................................................................................................. 4
1.3 Product version............................................................................................................ 4
1.4 Product labelling.......................................................................................................... 5
1.5 Specified standards...................................................................................................... 5
1.6 UL/CSA Certification..................................................................................................... 5
2 Function........................................................................................................................6
2.1 General..........................................................................................................................6
2.1.1 Product design........................................................................................................7
2.1.2 Display components............................................................................................... 7
2.1.3 Connecting components......................................................................................... 7
2.1.4 Input debouncing....................................................................................................8
2.1.5 Signal extension..................................................................................................... 8
2.2 Diagnostics................................................................................................................... 10
3 Parameterisation......................................................................................................... 12
3.1 Overview of parameters................................................................................................ 12
3.2 Module parameters...................................................................................................... 13
3.2.1 Diagnostics of sensor supply short circuit...............................................................13
3.2.2 Behaviour after SCS................................................................................................13
3.2.3 Input debounce time...............................................................................................14
3.2.4 Signal extension time............................................................................................. 14
3.3 Channel parameters..................................................................................................... 14
3.3.1 Selection of the signal extension time.................................................................... 14
4 Technical Data............................................................................................................. 18
Table of contents

1 About this Document
This document describes the function and parameterisation of the product stated in the title. Safe use
of the product is described in a separate document è 1.1 Further applicable documents.
1.1 Further applicable documents
All available documents for the product èwww.festo.com/pk.
Documentation Contents
Description of the automation system CPX-E
(CPX-E-SYS)
Detailed description of the
automation system CPX-E
Instruction manual for
automation system CPX-E (CPX-E-SYS)
Instruction manual and important information on
assembly, electrical installation and maintenance
tasks for an automation system CPX-E
Instruction manual
digital input module CPX-E-...DI-... (CPX-E-...DI-...)
Instruction manual and important information on
use and safe application
Documentation of the components in an
automation system CPX-E and the connected
peripherals
Information on using the components
Operating conditions| EX Information on the use of the product in poten-
tially explosive gas atmospheres
Documentation for the higher-order controller
and the additional participants in the network
Information on commissioning and parameterisa-
tion of the components
Tab. 1 Further applicable documents
1.2 Target group
This document is intended for qualified personnel. Experience with electrical control systems is
required in order to understand this documentation.
1.3 Product version
This document refers to the following product versions:
Product Version
CPX-E-16DI Digital input module CPX-E-16DI, revision1 or later
CPX-E-16DI-EX1E1) Digital input module CPX-E-16DI-EX1E, revision1 or later
1) Use in an industrial environment and in process automation according to NE21 and in potentially explosive atmospheres
Tab. 2 Product version
The product version can be identified from the product labelling or with the help of appropriate soft-
ware from Festo.
About this Document
Festo — CPX-E-...DI-... — 2020-01a4

Appropriate software for determining the product version can be found in the Festo Support Portal
èwww.festo.com/sp.
Information on using the software can be found in the integrated Help function.
There may be an updated version of this document for these or later product versions
èwww.festo.com/sp.
1.4 Product labelling
The product labelling is located on the left-hand side of the module. Scanning the printed Data Matrix
Code with an appropriate device opens the Festo Support Portal, with the information appropriate for
the product. Alternatively, the Product Key (11-digit alphanumeric code on the product labelling) can
be entered in the search field of the Support Portal èwww.festo.com/sp.
1Designation
2Revision version
3Pin allocation
4Approvals/warning symbols
5Product key
6Data Matrix Code
7Part number/serial number
Fig. 1 Product labelling
1.5 Specified standards
Version status
EN60529:2013-10 IEC60204-1:2014-10
EN61000-6-2:2005-08 IEC61131-2:2015-05
EN61000-6-4:2007-01 NE21:2012-05
Tab. 3 Standards specified in the document
1.6 UL/CSA Certification
In combination with the UL inspection mark on the product, the information in this section must also
be observed in order to comply with the certification conditions of Underwriters Laboratories Inc. (UL)
for USA and Canada.
About this Document
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UL certification information
Product category code NRAQ/NRAQ7
File number E239998
Considered standards UL 61010-1, 3rd Edition, May 11, 2012, revised April 29, 2016
CAN/CSA-C22.2 No. 61010-1-12, 3rd Edition, revision dated April
29, 2016
UL 61010-2-201, 1st Edition, revised February 20, 2017
CSA-C22.2 No. 61010-2-201: 14, 1st Edition, issue date January
01, 2014
UL mark
Tab. 4 UL/CSA Certification Information
– Technical data and environmental conditions may be subject to change in order to comply with
Underwriters Laboratories Inc. (UL) certification requirements for the USA and Canada.
Observe deviations èTechnical data.
– The unit shall be supplied by a power source which fulfils the requirements on a limited-energy
circuit in accordance to IEC/EN/UL/CSA 61010-1 or on a Limited Power Source (LPS) in accord-
ance to IEC/EN/UL/CSA 60950-1 or IEC/EN/UL/CSA 62368-1 or a Class 2 circuit in accordance to
NEC or CEC.
2 Function
2.1 General
The digital input module provides digital inputs for the connection of sensors, thereby enabling the
recording and further processing of digital input signals.
The sensors are supplied by the connection equipment with a voltage of 24VDC and return a 0- or
1-signal to the inputs. Status and error messages can be shown by LED indicators on the module.
The module behaviour can be set using parameters è 3 Parameterisation.
The sensor supply is provided by the operating voltage supply UEL/SEN on the bus module or controller
and electronically fuse-protected against short circuit or overload. If this fuse responds, the sensor
supply of the module is switched off and the error is shown by an LED indicator on the module.
After the elimination of the short circuit or the overload, the sensor supply is switched on again auto-
matically (default). This behaviour can be adjusted by parameters.
The electronic fuse of the module is slow-blowing. Sensors can therefore also be connected with a
temporarily higher current requirement.
Function
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2.1.1 Product design
1LED indicators
2Input terminal strips [X0] ... [X7]
3Terminal strip interlock
4Linking element
Fig. 2 Product design
2.1.2 Display components
1Module error [P] (red)
2Status of input 0 … 15 (green)
– input 0 [X0.0]
– input 1 [X0.1]
– input 2 [X1.0]
– …
Fig. 3 LED indicators
2.1.3 Connecting components
Connection [X0]…[X7] Signal
0 Input 0, 2, 4,…
1 Input 1, 3, 5,…
2 +24VDC input 0, 2, 4,…
3 +24VDC input 1, 3, 5,…
4 0VDC input 0, 2, 4,…
5 0VDC input 1, 3, 5,…
Tab. 5 Connection [X0] ... [X7]
Function
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2.1.4 Input debouncing
To suppress an unwanted signal edge change for switching operations (bouncing of the input signals),
the debounce time of the inputs can be determined using the “Input debounce time” module paramet-
er.
Possible input debounce times:
– 0.1ms
– 3ms (presetting)
– 10ms
– 20ms
Mode of operation
The edge changes of the sensor signal are not detected as a logical input signal until after the set
input debounce time is up.
Sensor signal is unstable
(shorter than the debounce time)
Sensor signal is sufficiently stable
(= debounce time)
1Start = debounce time started
2End = debounce time completely expired
3Sensor signal
4Logical input signal
Fig. 4
2.1.5 Signal extension
If very short signals are to be taken into consideration in the control sequence, the signal period can
be extended. For example, short signals can arise if the overrunning of an intermediate position shall
be evaluated to initiate a follow-up process in a time-optimised manner briefly before an end position
is reached.
Depending on the type of sensor, the length of the signal, which is generated when the intermediate
position is exceeded, can fluctuate according to the positioning speed. Due to the long cycle times of
the higher-order controller, short signals cannot always be detected.
To record even short sensor signals an extension of the input signals can be defined through the “Sig-
nal extension time” module parameter.
Possible signal extension times:
– 0.5ms
– 15ms (presetting)
Function
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– 50ms
– 100ms
The signal extension time can be activated or deactivated separately for every channel using the
“Selection of the signal extension time” parameter (è 3.3.1 Selection of the signal extension time).
No signal extension is activated as a default for all channels.
Mode of operation
Signal statuses assumed as a logical input signal are valid at least until the defined minimum signal
period has expired. Signal changes within the signal extension time are ignored and the defined
debounce times continue to be effective.
Edge changes within the signal extension time
The logical input signal is not supplied until after the signal extension and debounce times have
expired.
a) Rising edge b) Falling edge
Tab. 6
Expiration of the debounce time
Expiration of the signal extension time
1Sensor signal
2Logical input signal
3Edge changes
Fig. 5
Function
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Edge changes after expiration of the signal extension time
The logical input signal follows the sensor signal and is not supplied until after the debounce time has
expired.
a) Rising edge b) Falling edge
Tab. 7
Expiration of the debounce time
Expiration of the signal extension time
1Sensor signal
2Logical input signal
3Edge changes
Fig. 6
2.2 Diagnostics
Various options are available for diagnosing errors:
– Internal system diagnostics
– LED indicators on the product
The internal system diagnostics is described in the “Description of automation system CPX-E”
è 1.1 Further applicable documents.
The LED indicators on the product are described in the following tables.
Module error [P]1)
LED
(red)
Meaning Remedy
Lit
Short circuit/overload, sensor supply or
module defective
Eliminate short circuit/overload, check con-
nected sensors.
Switch the power supply UEL/SEN off and on.
The necessity of performing this step
depends on the configuration of the “Beha-
viour after SCS” parameter
è 3.2.2 Behaviour after SCS.
Function
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Module error [P]1)
LED
(red)
Meaning Remedy
Off
Normal operating status –
1) flashes once briefly during initialisation of the automation system CPX-E.
Tab. 8 Module error
Status of input [X0.0], [X0.1], [X1.0], …
LED
(green)
Meaning Remedy
Lit
Input active (logic1)
1 signal at input
–
Off
Input inactive (logic0)
0 signal at input
–
Tab. 9 Status of input [X0.0], [X0.1], [X1.0], …
Function
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3 Parameterisation
3.1 Overview of parameters
Module and channel parameters are available to adapt the module to the situation of use.
General settings that affect the entire module are made using module parameters.
Channel-specific settings are made separately for each channel using the channel parameters.
Module parameters Function number 1) Detailed information
Diagnostics of sensor supply short circuit 4828 + 64m + 0 è Tab. 12
Behaviour after SCS è Tab. 13
Input debounce time è Tab. 14
Signal extension time
4828 + 64m + 1
è Tab. 15
Reserved 4828 + 64m + 2…5 –
1) Function number (èDescription of automation system CPX-E); m = module number (counted from left to right, starting from 0)
Tab. 10 Overview of module parameters
Channel parameters Function number 1) Detailed information
Selection of signal extension time (channel
0…7)
4828 + 64m + 6 è Tab. 16
Selection of signal extension time (channel
8…15)
4828 + 64m + 7 è Tab. 17
1) Function number (èDescription of automation system CPX-E); m = module number (counted from left to right, starting from 0)
Tab. 11 Overview of channel parameters
Parameterisation
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3.2 Module parameters
3.2.1 Diagnostics of sensor supply short circuit
The "Diagnostics of sensor supply short circuit" defines whether the diagnostics of the sensor supply
in regard to short circuit or overload should be activated or deactivated.
When the diagnostics are activated, the error will be sent to the bus module and displayed on the
module by the error LED.
Module parameter – Diagnostics of sensor supply short circuit
Selection via parameter
Bit
Setting Selection via software
F no.1)
4828 +
64m 76543210
Deactivate diagnostics No diagnostics + 0 0
Activate diagnostics Diagnostics (default) + 0 1
1) Function number (èDescription of automation system CPX-E); m = module number (counted from left to right, starting from 0)
Tab. 12
3.2.2 Behaviour after SCS
The "Behaviour after SCO" parameter defines whether the voltage remains switched off or automatic-
ally switches on again after a short circuit or overload of the sensor supply.
In the case of the "Leave power switched off" setting, the CPX-E automation system must be switched
off and on to restore the power.
Module parameter – Behaviour after SCS
Selection via parameter
Bit
Setting Selection via software
F no.1)
4828 +
64m 76543210
Leave power switched off Power remains switched
off
+ 1 0
Reactivate voltage auto-
matically again
Automatic restore
(default)
+ 1 1
1) Function number (èDescription of automation system CPX-E); m = module number (counted from left to right, starting from 0)
Tab. 13
Parameterisation
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3.2.3 Input debounce time
The "Input debounce time" parameter defines when an edge change of the sensor signal shall be
assumed as a logical input signal.
In this way, unwanted signal edge changes can be suppressed during switching operations (bouncing
of the input signal).
Module parameter – Input debounce time
Selection via parameter
Bit
Setting Selection via software
F no.1)
4828 +
64m 76543210
0.1 ms + 1 0 0
3 ms (default) + 1 0 1
10 ms + 1 1 0
20 ms + 1 1 1
1) Function number (èDescription of automation system CPX-E); m = module number (counted from left to right, starting from 0)
Tab. 14
3.2.4 Signal extension time
The "Signal extension time" parameter defines the minimum valid duration of the assumed signal
status of the input signal. Edge changes within the signal extension time are ignored.
Short input signals can also be recorded by defining a signal extension time.
Module parameter – Signal extension time
Selection via parameter
Bit
Setting Selection via software
F no.1)
4828 +
64m 76543210
0.5 ms + 1 0 0
15 ms (default) + 1 0 1
50 ms + 1 1 0
100 ms + 1 1 1
1) Function number (èDescription of automation system CPX-E); m = module number (counted from left to right, starting from 0)
Tab. 15
3.3 Channel parameters
3.3.1 Selection of the signal extension time
The "Selection of the signal extension time" parameter defines whether the parameterised signal
extension time (è Tab. 15) should be activated or deactivated.
The setting can be made separately for each channel.
Parameterisation
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Channel parameter – Selection of the signal extension time channel 0…7
Selection via parameter
Bit
Setting Selection via software
F no.1)
4828 +
64m 76543210
Channel 0
Deactivate signal exten-
sion
No signal extension
(default)
+ 6 0
Activate signal extension Signal extension + 6 1
Channel 1
Deactivate signal exten-
sion
No signal extension
(default)
+ 6 0
Activate signal extension Signal extension + 6 1
Channel 2
Deactivate signal exten-
sion
No signal extension
(default)
+ 6 0
Activate signal extension Signal extension + 6 1
Channel 3
Deactivate signal exten-
sion
No signal extension
(default)
+ 6 0
Activate signal extension Signal extension + 6 1
Channel 4
Deactivate signal exten-
sion
No signal extension
(default)
+ 6 0
Activate signal extension Signal extension + 6 1
Channel 5
Deactivate signal exten-
sion
No signal extension
(default)
+ 6 0
Activate signal extension Signal extension + 6 1
Channel 6
Deactivate signal exten-
sion
No signal extension
(default)
+ 6 0
Activate signal extension Signal extension + 6 1
Parameterisation
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Channel parameter – Selection of the signal extension time channel 0…7
Selection via parameter
Bit
Setting Selection via software
F no.1)
4828 +
64m 76543210
Channel 7
Deactivate signal exten-
sion
No signal extension
(default)
+ 6 0
Activate signal extension Signal extension + 6 1
1) Function number (èDescription of automation system CPX-E); m = module number (counted from left to right, starting from 0)
Tab. 16
Channel parameter – Selection of the signal extension time channel 8…15
Selection via parameter
Bit
Setting Selection via software
F no.1)
4828 +
64m 76543210
Channel 8
Deactivate signal exten-
sion
No signal extension
(default)
+ 7 0
Activate signal extension Signal extension + 7 1
Channel 9
Deactivate signal exten-
sion
No signal extension
(default)
+ 7 0
Activate signal extension Signal extension + 7 1
Channel 10
Deactivate signal exten-
sion
No signal extension
(default)
+ 7 0
Activate signal extension Signal extension + 7 1
Channel 11
Deactivate signal exten-
sion
No signal extension
(default)
+ 7 0
Activate signal extension Signal extension + 7 1
Channel 12
Deactivate signal exten-
sion
No signal extension
(default)
+ 7 0
Parameterisation
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Channel parameter – Selection of the signal extension time channel 8…15
Selection via parameter
Bit
Setting Selection via software
F no.1)
4828 +
64m 76543210
Activate signal extension Signal extension + 7 1
Channel 13
Deactivate signal exten-
sion
No signal extension
(default)
+ 7 0
Activate signal extension Signal extension + 7 1
Channel 14
Deactivate signal exten-
sion
No signal extension
(default)
+ 7 0
Activate signal extension Signal extension + 7 1
Channel 15
Deactivate signal exten-
sion
No signal extension
(default)
+ 7 0
Activate signal extension Signal extension + 7 1
1) Function number (èDescription of automation system CPX-E); m = module number (counted from left to right, starting from 0)
Tab. 17
Parameterisation
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4 Technical Data
General technical data
CPX-E-16DI CPX-E-16DI-EX1E
General technical data
Automation system CPX-E
Description of automation system CPX-E
è 1.1 Further applicable documents
Dimensions
(length × width ×
height)1)
[mm] 124.3 × 18.9 × 76.6
Product weight2) [g] 102
Mounting position Vertical/horizontal
Ambient temperature [°C] –5…+60 (–5…+50)3)
Storage temperature [°C] –20…+70
Humidity
(non-condensing)
[%] 0…95
Assigned address
space (inputs/outputs)
[bit] 16/–
Module code (CPX-E-specific) 29 33
Module identification E-16DI E-16DI-EX1E
Degree of protection in accord-
ance with EN60529
IP20
The degree of protection is not UL-tested.
Protection against electric shock
(Protection against direct and
indirect contact in accordance
with IEC60204-1)
through the use of PELV circuits (protected extra-low voltage)
Electromagnetic compatibility To EN61000-6-2/-4 To EN61000-6-2/-4 and NE21
1) not including linking element
2) Including linking element
3) for horizontal mounting position
Tab. 18 General Technical Data
Power supply
Operating voltagesup-
ply UEL/SEN
[VDC] 24±25%
Technical Data
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Power supply
Intrinsic current con-
sumption at nominal
operating voltage 24V
from UEL/SEN
[mA] Typ. 15
Tab. 19 Power Supply
Digital inputs1)
CPX-E-16DI CPX-E-16DI-EX1E
Number of inputs 16
Max. cable length [m] 30 Not limited.
Information: note conductor
cross-section and voltage drop
for sensor.
Design [VDC] 0…30, positive logic (PNP)
Logic level (logic 0/1) [VDC] £5/³11
Switch-on delay Can be parameterised
Signal extension Can be parameterised
Electrical isolation
between the channels
No
Sensor supply
Sensor power supply [VDC] 24±25%
Voltage drop on short-
circuit protection
(reduction of sensor
power supply)
[VDC] £1
Reverse polarity pro-
tection 24V USEN
against 0V USEN
Yes
Potential difference between 0V
external sensor power supply and
0V internal sensor power supply
Not permissible
Sensor supply short-circuit protection2)
Short-circuit protection Electronic
Trigger level [A] >1.8
Characteristic Slow-blowing
Technical Data
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Digital inputs1)
CPX-E-16DI CPX-E-16DI-EX1E
Behaviour after end of overload Can be parameterised
1) type 3, 24VDC in accordance with IEC61131-2
2) For deviating technical data, see Electrical data UL/CSA and ambient conditions UL/CSA table
Tab. 20 Digital Inputs
Ambient conditions UL/CSA
Pollution degree 3
Installation site for indoor use only
Max. installation height [m] 2000
Tab. 21 Ambient Conditions UL/CSA
Sensor power supply short circuit protection for UL/CSA applications
Short-circuit protection for external implementation:
Resultant current of outputs for 24V USEN
Trigger level to be implemented externally with fuses: sensors protected by
fuses individually or collectively for complete module £1.5A
Tab. 22 Electrical Data UL/CSA
Technical Data
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