The SIEMENS S7-300 PLC is a high-quality industrial automation solution designed to streamline processes and enhance efficiency in various applications. With a sleek black color and standard size, this PLC offers reliable performance and durability. It comes with a 1-year warranty, providing peace of mind to users. The rack mount design makes installation easy, while the 50/60 Hertz frequency ensures consistent operation. As an exporter, manufacturer, supplier, and trader, this PLC caters to a wide range of business needs, making it a versatile choice for industrial automation projects.

Data Sheet 6ES7321-1BP00-0AA0

SIMATIC S7-300 | Digital Input Module SM 321
Spare Part | 64 Digital Inputs | 24 V DC | 3 ms | Sinking/Sourcing

Required accessories:

• Terminal blocks: 6ES7392-1.N00-0AA0

• Cable: 6ES7392-4...0-0AA0

Supply Voltage

Load voltage L+:

• Rated value (DC): 24 V

• Reverse polarity protection: Yes

Input Current

• From backplane bus (5 V DC), max.: 100 mA

Power Loss

• Typical: 7 W

Digital Inputs

• Number of digital inputs: 64

• Input characteristic per IEC 61131, Type 1: Yes

Simultaneously Controllable Inputs

All mounting positions

• Up to 40 C: 64

• Up to 60 C: 32

Horizontal installation

• Up to 40 C: 64

• Up to 60 C: 32

Vertical installation

• Up to 40 C: 32

Input Voltage

• Type: DC

• Rated value: 24 V

• Signal "0": 30 to +5 V

• Signal "1": 13 to 30 V

Input Current

• Signal "1", typical: 4.2 mA

Input Delay (at rated voltage)

Standard inputs (not parameterizable):

• Rated value: 4.2 ms

• 0 1 (min): 1.2 ms

• 0 1 (max): 4.8 ms

• 1 0 (min): 1.2 ms

• 1 0 (max): 4.8 ms

Cable Length

• Shielded: 1000 m

• Unshielded: 600 m

Encoder

• Connectable 2-wire sensor: No

Interrupts / Diagnostics / Status

• Alarms: No

• Diagnostic function: No

• Diagnostic alarm: No

• Hardware interrupt: No

• Diagnostic info readable: No

• Wire break detection: No

LED Indications

• Group error SF (red): No

• Status indicator DI (green): Yes

• Encoder supply Vs (green): No

Potential Separation

• Between channels: No

• In groups of 16: Yes

• Between channels and backplane bus: Yes (Optocoupler)

Isolation

• Type tested: 500 V DC

Connection Method

• Required front connector: Cable 6ES7392-4Bxx0-0AA0

• Terminal blocks: 6ES7392-1xN00-0AA0

Dimensions

• Width: 40 mm

• Height: 125 mm

• Depth: 112 mm

Weight

• Approx.: 230 g 

FAQs of SIEMENS S7 300 PLC: