About

The Siemens S71500 32DI Module is a high-quality product that utilizes hot rolled technique for manufacturing, resulting in a durable and reliable performance. Its sleek grey color adds a modern touch to any industrial setting. With a service period of 12 months, this module ensures long-lasting functionality. Designed for rack mounting, it offers easy installation and space-saving benefits. The module comes in a standard size, making it compatible with various systems and equipment.

Data Sheet – 6ES7521-1BL00-0AB0

SIMATIC S7-1500 | Digital Input Module DI 32×24 V DC HF

32 channels (grouped 16/16), 2 count-capable inputs, diagnostics, hardware interrupts. Front connector (screw or push-in) ordered separately.

General Information

• Product designation: DI 32x24VDC HF

• HW functional status: from FS04

• Firmware version: V2.2.1

• Firmware update possible: Yes

• I&M data: I&M0 … I&M3

• Isochronous mode: Yes

• Prioritized startup: Yes

Engineering

• STEP 7 TIA Portal: from V13 SP1

• STEP 7 (classic): from V5.5 SP3

• PROFIBUS GSD: V1.0 / V5.1

• PROFINET GSD: V2.3

Operating Modes

• Digital input mode: Yes

• Counter mode: Yes (2 counters)

• Oversampling: No

• MSI (Module-internal shared input): Yes

Supply Voltage

• Rated: 24 V DC

• Permissible range: 19.2 … 28.8 V

• Reverse polarity protection: Yes

Input Current

• Max consumption: 40 mA
  (20 mA per group at 24 V supply)

Power

• From backplane bus: 1.1 W

• Power loss (typ.): 4.2 W

Digital Inputs

• Number of inputs: 32

• Parameterizable: Yes

• Input type: IEC 61131 Type 3

• Source/sink: P-reading

Input Functions

• Gate start/stop: Yes

• Freely usable DI: Yes

Counter Inputs

• Max number: 2

• Max frequency: 6 kHz (FS04 + FW ≥ V2.2.1)

• Width: 32 bit

• Direction: Up

Input Voltage

• Rated: 24 V DC

• Signal “0”: –30 … +5 V

• Signal “1”: +11 … +30 V

Input Current

• Signal “1” (typ.): 2.5 mA

Input Delay (Parameterizable)

• Options: 0.05 / 0.1 / 0.4 / 1.6 / 3.2 / 12.8 / 20 ms

• 0 → 1: 0.05 … 20 ms

• 1 → 0: 0.05 … 20 ms

• Interrupt inputs: parameterizable

• Technological functions: parameterizable

Cable Length

• Shielded: max. 1000 m

• Unshielded: max. 600 m

Encoder Support

• 2-wire sensor: Yes

  • Max quiescent current: 1.5 mA

Isochronous Mode

• Min TCI (filter + processing time): 80 μs

• Minimum bus cycle time (TDP): 250 μs

Diagnostics & Status

• Diagnostics: Yes

• Diagnostic alarms: Yes

• Hardware interrupts: Yes

Diagnostic Features

• Supply voltage monitoring: Yes

• Wire break: Yes (I < 350 μA)

• Short-circuit: No

LED Indicators

• RUN LED: Green

• ERROR LED: Red

• PWR LED: Green

• Channel status: Green

• Channel diagnostics: Red

• Module diagnostics: Red

Isolation / Potential Separation

• Between channels: Yes

• Channel groups: 16 / 16

• Channels ↔ backplane bus: Yes

• Channels ↔ electronics supply: No

• Tested at: 707 V DC

Environmental / Safety

• Suitable for safety functions: No

Ambient Temperature

• Horizontal: –30 … +60 °C (FS05+)

• Vertical: –30 … +40 °C

Altitude

• Up to 5000 m (restrictions >2000 m)

Dimensions

• Width: 35 mm

• Height: 147 mm

• Depth: 129 mm

Weight

• Approx.: 260 g