SIMATIC S7-1500 signal modules

SIMATIC S7-1500 I/O modules

Scalability, performance, and usability

SIMATIC S7-1500/ET 200MP signal or periphery modules are the interface between controller and process. They can be used centrally on the SIMATIC S7-1500 CPU or in a decentralized SIMATIC ET 200MP peripheral system.

You can configure your signal modules here.

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System benefits

Signal modules – always the right solution for every job

Sensors enable the controller to determine current process status. The digital and analog modules provide the inputs and outputs the various actuators need to perform their tasks.

Additional highlights of the S7-1500 signal modules

More efficient monitoring – use watch and force tables via the integrated screen

  • Modules with different functions and numbers of channels 
  • Compact structure and increased functional density
  • Bus connector for self-assembling backplane bus

More efficient safety – both central and decentralized

  • Fail-safe SIMATIC S7-1500 IO/ET 200MP modules for processing standard and safety programs 
  • Functional safety to SIL 3 in accordance with IEC 62061 and PL e as per ISO 13849
Product range

Find the right solution for your needs

Digital and analog input and output modules are available in many different versions to meet your needs.

Right for your needs, high-performance, and space-saving

The input and output modules feature high channel density and maximum efficiency: The minimum variation between parts makes ordering, services, and spare parts inventories much easier. 

 

The modules are also available in different versions to suit individual requirements. In addition to the standard modules, high-feature versions offer expanded functions and more powerful performance.

 

The narrow 25 mm modules with no parameterization or diagnostics are available at a particularly low price.

Digital Input Modules

The modules have high channel density and low parts variance. As a result, ordering, logistics and spare-parts inventory are considerably simplified.

High Feature modules with enhanced functionality are only available with the 35mm form factor. Modules with a width a width of 35 mm can be equipped with a front connector using screw terminal or push-in technology, the connector has to be ordered separately.
The narrow 25mm modules use a front connector with push-in technology which is included in the scope of delivery. The modules have the same mechanical structure as the 35 mm modules. They also offer the same operability and the same accessories. Moreover, the pin assignment in the wiring is unchanged. This means that circuit and wiring diagrams can be universally used.

The narrow, low-cost modules do not have any parameter assignment or diagnostics, so integration in the engineering is significantly easier.
The narrow 25 mm modules can be mixed with the 35 mm modules as required.

Digital Input Modules at a glance

SM 521

DI 16x24V DC HF

DI 32x24V DC HF

DI 16x24....125 VUC HF

DI 16x 24V DC SRC BA

DI 16x230V AC BA

DI 16x24V DC BA

DI 32x24V DC BA

DI 64 x24V DC BA
Type
High Feature
High Feature
High Feature
Basic
Basic
Basic
Basic
Basic

Number of inputs

16

32

16

16

16

16

32

64
Voltage
24V DC
24V DC
24....125 VUC
24V DC
230V AC
24V DC
24V DC
24V DC

Sinking/sourcing input

sinking input

sinking input

sinking input

sourcing input

sinking input

sinking input

sinking input

sinking/sourcing input

Potential groups

1

2

16

1

4

1

4

4

Input delay

0.05 ... 20 ms

0.05 ... 20 ms

0.05 ... 20 ms DC
20 ms fixed AC

3.2 ms fixed

20 ms

3.2 ms fixed

3.2 ms fixed

 

3.2 ms fixed
Type of input
3 (IEC 61131)
3 (IEC 61131)
3 (IEC 61131)
3 (IEC 61131)
1 (IEC 61131)
3 (IEC 61131)
3 (IEC 61131)
3 (IEC 61131)

Diagnostics

yes, channel wise

yes, channel wise

yes, channel wise

no

no

no

no

no
Counting with DI

yes

yes

yes

no

no

no

no

no
Module width
35 mm
35 mm
35 mm
35 mm
35mm
25 mm
25 mm
35 mm

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Digital Output Modules SM 522

The modules have high channel density and low parts variance. As a result, ordering, logistics and spare-parts inventory are considerably simplified

Standard and High Feature modules with enhanced functionality are only available with the 35mm form factor. Modules with a width a width of 35 mm can be equipped with a front connector using screw terminal or push-in technology, the connector has to be ordered separately.
The narrow 25mm modules use a front connector with push-in technology which is included in the scope of delivery. The modules have the same mechanical structure as the 35 mm modules. They also offer the same operability and the same accessories. Moreover, the pin assignment in the wiring is unchanged. This means that circuit and wiring diagrams can be universally used.

The narrow, low-cost modules do not have any parameter assignment or diagnostics, so integration in the engineering is significantly easier.
The narrow 25 mm modules can be mixed with the 35 mm modules as required.

Digital output modules with a width of 35 mm

SM 522

DQ 16x24VDC 0.5A HF

DQ 32x24V DC/0.5A HF

DQ 8x24V DC/2A HF

DQ 16x 24...48 V UC/ 125 V DC 0.5A ST

DQ 8x230V AC/2A ST

DQ 8x230V AC/5A ST

DQ 16x230V AC/1A ST

DQ 16x230V AC/2A ST

DQ 64x24V DC/0.3A BA
DQ 64x24V DC/0.3A SNK BA
Type
High Feature
High Feature
High Feature
Standard
Standard
Standard
Standard
Standard
Basic
Basic

Number of outputs

16

32

8

16

8

8

16

16

64
64

Type of output

DC 24 V / 0.5 A transistor

DC 24 V / 0.5 A transistor

DC 24 V / 2 A transistor

Universal Current 0.5 A

AC 230 V / 2 A triac

AC 230 V / 5 A relay

AC 230 V / 1 A triac

AC 230 V / 2 A relay

DC 24V/0.3 A transistor
DC 24V/0.3 A transistor

Potential groups

2

4

1

16

8

8

8

8

4
4

Current per group

4 A

4A

8 A

0.5 A

2 A

5 A

2 A

4 A

2A
2A

Diagnostics

yes, channel wise parameterizable

yes, channel wise parameterizable

yes, channel wise parameterizable

no

no

yes

no

yes

no
no
Parameterizable substitute
value for the outputs

yes

yes

yes

yes

yes

yes

yes

yes

no
no

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Digital output modules with a width of 25 mm

SM 522

DQ 16x24V DC 0.5A BA

DQ 32x24V DC/0.5A BA

Type
Basic
Basic

Number of outputs

16

32

Type of output

DC 24 V / 0.5 A transistor

DC 24 V / 0.5 A transistor

Potential groups

2

4

Current per group

4 A

4 A

Diagnostics

no

no

Parameterizable substitute
value for the outputs

no

no

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Digital Input/Output Module SM 523

The digital input/output module SM 523 offers 16 digital inputs and 16 digital outputs. It is recommended for use in locations where only very few input/output channels are necessary or under conditions of use in which a high number of channels must be implemented in a very limited space.
The narrow 25mm modules use a front connector with push-in technology which is included in the scope of delivery.


There is a new 35mm hybrid module offering 32 inputs (sinking/sourccing) as well as 32 output (sinking).
It  can be used side by side with the 25 mm modules in one station as required.

SM 523

DI 16x24V DC /DQ 16x24V DC 0.5A BA

DI 32x24V DC /DQ 32x24V DC 0.3A BA
Type
Basic
Basic

Number of inputs/outputs

16/16

32/32
Inputs
 
 
Voltage
24 V DC
24 V DC
Potential groups
1
2
Sinking/sourcing input
sinking input
Sinking/sourcing input
Type
input type  3 (IEC 61131)
input type  3 (IEC 61131)
Input delay
fixed, 3.2 ms
fixed, 3.2 ms
Outputs
 
 

Type

DC 24 V / 0.5 A Transistor

DC 24 V / 0.3 A Transistor

Potential groups

2

2
Sinking/sourcing input
sourcing output
sinking output

Current per group

4 A

2 A

Diagnotics

no

no

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The perfect combination of precision and convenience

Analog input modules are designed to record process signals, such as pressure or temperature, as 16-bit digital values. Depending on the measurement type of the module, they also enable measurement of current, voltage, and resistance, and the connection of resistance thermometers and thermocouples.

 

Analog output modules convert a 16-bit digital value into a current or a voltage and output this to the process. They are suitable for controlling proportional valves or small servo drives. 

Analog input modules (AI)

Analog input modules record process signals such as pressure or temperature and forward them in digitalized format (16 bit format) to the control. They are suitable for measuring current (2-wire and 4-wire transducers), voltage, and resistance, as well as for the connection of resistance thermometers and thermocouples (measurement types depend on the module).

Modules with a width of 35 mm can be equipped with a front connector using screw terminal or push-in technology, the connector has to be ordered separately.
The narrow 25mm modules use a front connector with push-in technology which is included in the scope of delivery. The modules have the same mechanical structure as the 35 mm modules. They also offer the same operability and the same accessories. Moreover, the pin assignment in the wiring is unchanged. This means that circuit and wiring diagrams can be universally used. For all analog input modules the components for shielding like power supply element, shield bracket, and shield terminal are included in the scope of delivery

The narrow 25 mm modules can be mixed with the 35 mm modules as required.

ET 200MP SM 531 AI-Modules at a glance

SM 531

AI 8xU/I/RTD/TC BA

AI 8xU/I/R/RTD/TC ST

AI 16xU BA
AI 16xI BA

AI 8xU/I HF

AI 8xU/I HS

AI 8xU/R/RTD/TC HF

AI 4xU/I/RTD/TC ST

Type
Basic
Standard
Basic
Basi
High Feature
High Speed
High Feature
Standard

Number of inputs

8 (4 for R/RTD)

8 (4 for R/RTD )

16
16

8

8

8+1

4 (2 for RTD)

Measurement types

Voltage, current, resistance,  resistance thermometer, thermocouple  

Voltage, current, resistance,  resistance thermometer, thermocouple

Voltage
Current

Voltage, current

Voltage, current,

Voltage, resistance,  resistance thermometer, thermocouplet
Voltage, current, resistance,  resistance thermometer, thermocouple
Resolution
16 Bit
16 Bit
16 Bit
16 Bit
16 Bit
16 Bit
16 Bit
16 Bit
Accuracy
+/-0.5%
+/-0.3%
+/- 0.5 %
+/- 0.5 %
+/-0.1%
+/-0.3%
+/-0.1% (depending on measurement type)
+/-0.3%

Potential groups

1

1

1
1

8

1

8

1

Common-mode voltage
4V
10V
4V
4V
30V AC /60V DC
10V
30V AC / 60V DC
10V

Diagnostics

yes, parameterizable

yes, parameterizable

yes, parameterizable
yes, parameterizable

yes, parameterizable

yes, parameterizable

yes, parameterizable

yes, parameterizable

Hardware interrupts

 

two upper and lower limit values

two upper and lower limit values

two upper and lower limit values
two upper and lower limit values

two upper and lower limit values

two upper and lower limit values

two upper and lower limit values

two upper and lower limit values

Calibration in runtime  
no
yes
no
no
yes
yes
yes
yes
Isochronous mode
no
no
no
no
yes
yes
yes
no
Special functions
 
 
 
 
Scaling of measured values
Oversampling
8 channels in 62.5 µs
Characteristics according GOST, Integrated 9th channel for TC compensation or “real” channel “
measuring range adjustment
 
Module width
35mm
35mm
35 mm
35 mm
35mm
35mm
35 mm
25mm

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Analog output modules SM 532

Analog output modules convert a 16-bit digital value into a current or a voltage and output this to the process. They are suitable, for example, for controlling proportional valves or small servo drives.

Modules with a width a width of 35 mm can be equipped with a front connector using screw terminal or push-in technology, the connector has to be ordered separately.
The narrow 25mm modules use a front connector with push-in technology which is included in the scope of delivery. The modules have the same mechanical structure as the 35 mm modules. They also offer the same operability and the same accessories. Moreover, the pin assignment in the wiring is unchanged. This means that circuit and wiring diagrams can be universally used. For all analog output modules the components for shielding like power supply element, shield bracket, and shield terminal are included in the scope of delivery.

The narrow 25 mm modules can be used side by side with 35 mm modules in one station.

Expanded functions for analog outputs

  • Oversampling (for SM 532 AQ 8XU/I HS)
    The use of the oversampling function requires an isochronous configuration.
    For analog output modules, the preset transmit clock is divided into up to 16 time-equidistant subcycles. A data packet is transferred by the controller to the module and written to the process divided into n equidistant subcycles. The read or output values are transferred in the user data of the analog module. This increases the address space of the module.
    A major advantage of Oversampling is that no faster CPU-Cycle is required for recording the high temporal resolution measurements.
  • Isochronous mode (for SM 532 AQ 4XU/I HF)
    With the "Isochronous mode" system property, measured values and process data can be acquired with a fixed system clock. The signal processing until switching on the output terminal occurs in the same system clock. Isochronous mode thus contributes to high quality of the controller and therefore to greater manufacturing precision. Possible fluctuations of the process response times are significantly reduced. Time-assured processing, i.e. the high deterministic response, can be used for a higher machine cycle.

ET 200MP SM 532 AQ Modules at a glance

SM 532

AQ 4xU/I ST

AQ 4xU/I HF

AQ 8xU/I HS

AQ 2xU/I ST

Type
Standard
High Feature
High Speed
Standard

Number of outputs

4

4

8

2

Type of outputs

current, voltage

current, voltage

current, voltage

current, voltage
Resolution
16 Bit
16 Bit
16 Bit
16 Bit
Accuracy
+/-0.3%
+/-0.1%...+/- 0.2%
+/-0.3%
+/-0.3%

Potential groups

1

4

1

1

Diagnostics

yes, parameterizable

yes ,parameterizable

yes, parameterizable

yes, parameterizable

Parameterizable substitute values for the outputs

yes

yes

yes

yes

Calibration in runtime
yes
yes
yes
yes
Isochronous mode
no
yes
yes
no
Oversampling
no
no
yes
no
Module width
35mm
35mm
35mm
25mm

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SM 534 AI/AQ 4xU/I/RTD/TC / 2xU/I ST

The analog input/output module SM 534 offers 4 analog inputs and 2 analog outputs at a very small footprint and is therefore suited for use in the tightest spaces. 

The four inputs support measurement of voltage, current, resistance, resistance thermometer and thermocouples. Resistance or resistance thermometer measuring is limited to two channels, output signals are current or voltage.
The narrow 25 mm module with Standard functionality uses push-in technology, the front connector as well as the components for shielding like power supply element, shield bracket, and shield terminal are included in the scope of delivery.
Like other 25 mm modules the SM534 can be used side by side with 35 mm modules in one station.

Module
Description
Technical data
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AI/AQ 4xU/I/RTD/TC / 2xU/I ST
4 analog inputs/ 2 analog outputs 

Failsafe I/O Module SM 526

The failsafe S7-1500 /ET 200MP I/O modules allow the processing of safety related as well as standard programs. Their functional safety is certified in accordance with IEC 61508 (2nd Edition). They are designed for safety-related use up to SIL 3 according to IEC 62061 and PL e according to ISO 13849.

Module
Description
Technical data
Industry Mall
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F-DI 16x24V DC 
16 fail-safe inputs
F-DQ 8x24V DC/2A PPM
8 fail-safe outputs
PM - or PP switching
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Downloads & Support

Further information

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Support Services

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Optimum configuration

Get off to a flying start now with SIMATIC S7-1500

To make your machine concepts a reality, all you need now is the ideal configuration. The TIA Selection Tool makes it easy to find the right signal module from our portfolio for your needs. The TIA Selection Tool is available as a desktop version for downloading, or as a cloud-based option.

You can configure your signal modules here.

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