Home > Products > SIEMENS > SIMATIC S7 Series
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CHANNELS
8 digital inputs
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INPUT TYPE
24 V DC source input
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BASEUNIT
Type A0
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INPUT DELAY
0.05 to 20 ms
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LEAD TIME
In stock
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WARRANTY
1 year
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Siemens 6ES7131-6BF61-0AA0 is a SIMATIC ET 200SP DI 8x24 VDC SRC BA digital input module. It provides eight sourcing inputs for NPN, M-reading field signals and follows the IEC 61131 type 1 input characteristic.
The 15 mm module fits BaseUnit type A0, uses color code CC02 and supports parameterizable input delays from 0.05 to 20 ms. Supply-voltage monitoring, diagnostic alarms and readable diagnostic information support structured commissioning and service.
Engineering integration is available from STEP 7 TIA Portal V14. The module is also identified for PROFINET R1 IM operation and carries Siemens-listed general, hazardous-location and maritime approvals.
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Complete model
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6ES7131-6BF61-0AA0
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Brand
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Siemens
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Product family
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SIMATIC ET 200SP
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Product type
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DI 8x24 VDC SRC BA digital input module
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Input characteristic
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IEC 61131 type 1
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Digital inputs
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8, parameterizable
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Input direction
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Sourcing; NPN, M-reading
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Rated voltage
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24 V DC
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Permissible supply range
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19.2 to 28.8 V DC
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Input current for signal 1
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6 mA typical
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Input delay
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0.05 / 0.1 / 0.4 / 0.8 / 1.6 / 3.2 / 12.8 / 20 ms
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Current consumption
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4.5 mA rated; 53 mA maximum
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Power loss
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1.5 W typical
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Usable BaseUnit
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BU type A0
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Color code
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CC02
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Cable length
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1,000 m shielded maximum; 200 m unshielded maximum
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Diagnostics
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Diagnostic alarm; readable diagnostics; parameterizable supply-voltage monitoring
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Isolation test
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707 V DC type test
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Operating temperature
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-30 to 60 °C horizontal; -30 to 50 °C vertical, with Siemens FS02 condition below 0 °C
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Installation altitude
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Up to 5,000 m; restrictions above 2,000 m per system manual
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Dimensions
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15 × 73 × 58 mm (W × H × D)
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Weight
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Approx. 28 g
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Approvals
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General, hazardous-location and maritime approvals listed by Siemens
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Source-input acquisition
Collects eight 24 V DC sourcing signals from compatible NPN, M-reading field devices in one compact module.
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Configurable response
Per-channel input delay can be parameterized from 0.05 to 20 ms to balance response speed and signal filtering for the application.
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Extended field wiring
Supports cable runs up to 1,000 m with shielded cable and 200 m with unshielded cable, subject to the applicable system installation rules.
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Service visibility
Green channel LEDs, a green power LED and a green/red DIAG LED provide clear local status during commissioning and maintenance.
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Slim ET 200SP format
The module is 15 mm wide, 73 mm high and 58 mm deep, with an approximate weight of 28 g.
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BaseUnit interface
The module fits BU type A0. One-wire and two-wire connections use BU type A0; three-wire wiring requires AUX terminals or a potential distributor, and four-wire wiring uses a potential distributor module.
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Coding and identification
Automatic encoding is provided with a type B mechanical coding element and CC02 module-specific color coding.
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Electrical separation
Channels are not isolated from one another, while the channel group is isolated from the backplane bus and tested at 707 V DC.
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1 · Verify the hardware
Confirm the complete order number, BU type A0 requirement, CC02 coding and the planned one-, two-, three- or four-wire connection.
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2 · Assemble the station
Install the specified BaseUnit and required AUX or potential-distributor components before inserting the electronics module.
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3 · Configure engineering data
Integrate the module in STEP 7 TIA Portal V14 or later, or use the Siemens-listed STEP 7, PROFIBUS or PROFINET configuration data.
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4 · Set and test inputs
Assign the input-delay parameters, verify 24 V DC signal levels and confirm the PWR, channel and DIAG indications during commissioning.
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ET 200SP platform
Designed for SIMATIC ET 200SP stations and usable with BaseUnit type A0.
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Signal architecture
Eight sourcing inputs are intended for 24 V DC NPN, M-reading signals and are not equivalent to sink-input variants.
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Engineering support
Configurable in STEP 7 TIA Portal from V14; Siemens also lists STEP 7 V5.5 SP3, PROFIBUS GSD revisions 3 and 5 or higher, and PROFINET GSDML V2.3.
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System diagnostics
Supply-voltage monitoring and diagnostic alarms are supported; encoder-supply monitoring, wire-break diagnostics and short-circuit diagnostics are not provided on this variant.
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Q1 · How can the quoted model be verified?
Match the full order number 6ES7131-6BF61-0AA0 on the quotation, nameplate and packaging. The official description must state DI 8x24 VDC SRC BA, source input, BU type A0 and color code CC02.
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Q2 · How can New, Used or Refurbished condition be distinguished?
Request current photos of the exact unit, its Siemens label, package seals and traceable serial or lot markings. Ask the supplier to declare the condition in writing and compare wear, terminals and packaging with the declaration.
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Q3 · How should supplier legitimacy be checked?
Verify the legal company name, registration, business address, company-domain communication and matching bank beneficiary. Request a formal quotation that identifies the exact order number and product condition.
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Q4 · What should engineers confirm before purchase?
Confirm source-input logic for NPN, M-reading devices, 24 V DC levels, BU type A0, CC02 coding, the required 0.05 to 20 ms delay setting, wiring method and available diagnostics.
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Q5 · What evidence should be requested before payment?
Ask for dated photos or video showing the complete order number, Siemens nameplate, unopened or declared packaging, terminal condition and included documentation. The evidence should be tied to the supplier quotation.
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Q6 · Can a similar suffix be substituted?
Not automatically. A different suffix can change input direction, channel functions, BaseUnit requirements, diagnostics, engineering compatibility or approvals. Approve any substitute only after a line-by-line comparison with the official Siemens data sheet.
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