Home > Products > SIEMENS > SIMATIC S7 Series
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Complete model
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6ES7523-1BL00-0AA0
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Brand
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Siemens
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Product family
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SIMATIC S7-1500 / ET 200MP, SM 523
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Product type
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DI 16x24 V DC / DQ 16x24 V DC/0.5 A BA digital input/output module
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Supply voltage
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24 V DC; valid range 20.4 to 28.8 V
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Current consumption
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Maximum 30 mA
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Backplane power
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1.1 W; typical module power loss 3.45 W
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Digital inputs
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16 sinking inputs, IEC 61131 type 3; signal 1 current approx. 2.7 mA
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Input delay
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3 to 4 ms for both transitions
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Digital outputs
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16 sourcing outputs, short-circuit protected, 0.5 A per channel
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Output capacity
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4 A per group; 8 A per module maximum
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Cable length
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Shielded 1000 m maximum; unshielded 600 m maximum
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Operating temperature
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Horizontal: 0 to 60 C; vertical: 0 to 40 C
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Dimensions
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25 x 147 x 129 mm (W x H x D)
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Weight
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Approximately 280 g
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Connector
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40-pin push-in front connector included
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1
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How can I verify that a quotation covers the exact 6ES7523-1BL00-0AA0?
Require the complete Siemens article number on the module and quotation, and confirm the description identifies a DI16x24 V DC / DQ16x24 V DC/0.5 A BA combined digital input/output module.
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2
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How can I distinguish new stock from used or refurbished stock?
Request current photos of the article label, included 40-pin push-in front connector, terminal area, U-connector interface, housing, latch, indicators, and packaging. Check for wire marks, scratches, dust, rework, and resealing.
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3
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How should I verify the supplier is legal and reliable?
Confirm the registered business identity, invoice details, address, and traceable contact channels. Require time-stamped evidence of the same 6ES7523-1BL00-0AA0 unit and its included connector, not a generic S7-1500 photo.
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4
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Which engineering specifications must be checked before procurement?
Verify 16 type-3 24 V DC inputs, 16 sourcing 24 V DC outputs at 0.5 A, 4 A per output group, 8 A module total, 25 mm width, 30 mA maximum current consumption, and the intended S7-1500 or ET 200MP configuration.
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5
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What physical proof should be requested before payment?
Ask for time-stamped images of all sides, the full label, 40-pin connector, terminal contacts, U-connector area, packaging, and serial or batch markings. A continuous video should show the same labeled unit and connector.
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6
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Can another DI/DQ module or a similar suffix replace 6ES7523-1BL00-0AA0?
Do not assume interchangeability. Confirm the 16-input and 16-output combination, 24 V DC ranges, 0.5 A channel rating, group isolation, 25 x 147 x 129 mm dimensions, included connector, and software integration.
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