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SIEMENS SIMATIC S7-1500 analog I/O module – 6ES7531-7QD00-0AB0 is designed to maximize application convenience and maximize functionality. The compact size makes it easy to use the space saved inside the control cabinet. Modules feature high channel density and low component variability

Analog I/O, advanced expandability, 16 Bit resolution, 4 voltage inputs

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The interface module (IM) connects SIMATIC ET200 to PROFINET or PROFIBUS – exchanging data between the controller and I/O modules. The modules are characterized by high channel density and low component variability, which significantly simplifies procurement, logistics or spare parts inventory.

The main difference between binary and analog interfaces is that an analog input receives signals with variable values, while a binary input receives signals with fixed static values.

Analog I/O modules record process signals, such as pressure or temperature, and transmit them in digital format (16-bit format) to the controller. They are suitable for measuring current (2- and 4-wire transmitters), voltage and resistance, for controlling proportional valves or small servo drives. When using scaling for measured values, the analog I/O module directly converts the physical value and makes it available to the user program as a 32-bit floating-point (REAL) value.

Analog Module – 6ES7531-7QD00-0AB0 is an I/O system that can easily be used in a variety of applications, has an IP20 protection rating, and is designed to maximize application convenience and maximize functionality. The compact size of the device of this class is made possible by the high density of channels, the small size facilitates the use of the space saved inside the control cabinet. A special space for cable management ensures that a high level of aesthetics is maintained inside the control cabinet station.

25mm and 35mm module versions are available. Applied enhanced functions in various analog modules by function classes HF (High Feature) and HS (High Speed) offer additional features: Narrower 25mm modules use a front connector with push-in technology. Both versions of the modules have the same mechanical structure, offer the same functionality and the same accessories. The 25 mm modules can be freely mixed with 35 mm modules.

SIMATIC ET 200 interface modules offer advanced functionality even without integrated CPUs. Advanced system PROFINET Shared Device provides distribution of large limits of one station configuration between 2 or 4 PROFINET IO controllers. Large configuration limits can be grouped behind an I/O module to link data to different controllers. This saves the installation of further interface modules and the associated costs.

The ET 200 supports all MSI and MSO functions. With MSI, data from a digital or analog input module can be mapped to up to four IO controllers. With MSO, data that the controller writes to a digital or analog output module can be read back by up to 3 additional IO controllers. In this way, MSI/MSO helps further save on unnecessary wiring. No programming of communication devices or other mechanisms is needed, it simplifies software engineering to the maximum, greatly improves the operation and maintenance of the user program. Changes and adjustments without problems can easily be made at any time without adversely affecting the user’s program.

With proximity detection on PROFINET (LLDP), ET 200 interface modules no longer require memory cards. This simplifies IM handling during replacement and also reduces costs. If the communicator fails, you can simply remove it and put in a new communicator. The IP address and new name are automatically assigned to the new module by proximity detection. The interface modules are integrated with TIA Portal. In addition, GSD files are available with which the interface modules can be integrated into any engineering tool and operated on any PROFINET-enabled controller. In particular, it makes it possible to optimize the cost of building small-scale stations.

The ET 200 is ideal for use in advanced plants with very high configuration limits. The connection to PROFINET and PROFIBUS allows installation centrally in a control cabinet or distribution in plants that may cover large areas. In addition to the basic features of SIMATIC I/O systems, additional enhanced variants of SIPLUS Extreme allow to increase the application sites of devices in hazardous areas, for example. The S7-1500 FAIL SAFE ET 200 modules enable the processing of both safety-related and standard programs. Their functional safety is certified in accordance with IEC 61508. They are designed for safety applications up to SIL 3 according to IEC 62061 and PL e according to ISO 13849.


Depth 129 mm
Explosion protection category for gases ATEX – explosion protection for gases, cat. 3G
Explosion protection category for dust No
Configurable digital outputs Yes
Number of analog outputs 4
Type of electrical connection Other
Resolution of analog outputs 16 Bit
Configurable output signal Yes
Width 25 mm
Module type analog outputs
Output, voltage Yes
Output, current Yes
Height 147 mm


Additional Product Information
EAN 4047623403425
UPC 887621837037
Statistical number of the goods 85389091
Catalog designation ST73
FAGR 4501
Group Code R151