Accepts IEC 61131 Type 1 digital input signals.
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Product Overview
6ES7288-2DE08-0AA0 is the SIMATIC S7-200 SMART SM DI08 signal module.
It adds eight 24 V DC sink/source digital inputs arranged in two input groups.
The module uses the S7-200 SMART backplane and indicates each input state with an LED.
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Performance
Recognizes logic 0 below 5 V and logic 1 from 15 to 30 V.
Draws approximately 105 mA from the 5 V backplane supply.
Allows all eight inputs to be active simultaneously within the published operating conditions.
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Technical Details
Manufacturer
Siemens
Exact model
6ES7288-2DE08-0AA0
Product designation
SM DI08
Digital inputs
8
Input grouping
2 groups
Rated input voltage
24 V DC
Permissible input range
20.4 to 28.8 V DC
Signal 0
Below 5 V DC; 1 mA maximum
Signal 1
15 to 30 V DC; 2.5 to 5 mA
Backplane current
105 mA at 5 V DC
Power loss
1.5 W
Isolation test
500 V AC for 1 minute, field to logic
Cable length
500 m shielded; 300 m unshielded
About IndustryParts
https://www.industryparts.com/Two input groups are recorded before wiring moves
IndustryParts keeps 6ES7288-2DE08-0AA0 tied to the exact slot, two common groups and eight-point input map.
Two commons documented
Eight inputs mapped
Project slot retained
04
System Integration
Identify both input-group commons before transferring conductors.
Confirm 24 V DC field voltage, polarity and source/sink convention.
Keep high-frequency signal routes within the approved wiring and cable-length plan.
Verify each channel at the terminal, LED and process-image level after configuration.
05
Applications
Eight-point digital input expansion for compact S7-200 SMART stations.
Proximity switch, pushbutton and discrete status circuits using 24 V DC.
Panels requiring separate commons for two input groups.
Direct replacement where slot, project and wiring match the exact DI08 model.
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FAQ
Q01How are the inputs on 6ES7288-2DE08-0AA0 grouped?
The eight points are divided into two groups, so both common references must be confirmed from the wiring diagram.
Q02What should be measured when a 6ES7288-2DE08-0AA0 LED is off?
Measure the channel voltage against its own group common and verify the field source, polarity and conductor continuity.
Q03Can 6ES7288-2DE08-0AA0 replace a 16-point input module?
Not directly. Point count, grouping, hardware configuration and field terminals differ.
Q04Which records should accompany a 6ES7288-2DE08-0AA0 spare?
Keep the CPU and slot, hardware configuration, eight-point list, group-common drawing and field-supply details.
Q05What confirms 6ES7288-2DE08-0AA0 is commissioned correctly?
All used inputs must agree at the terminal voltage, front LED, PLC process image and machine diagnostic level.
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