SM321, 16 DI, 120/230V AC

Siemens

Product Information

Dimensions:
125 x 40 x 120 mm
Range:
SIMATIC
Input Type:
Digital
For Use With:
S7-300 Series
Number of Inputs:
16
RoHs Compliant
Checking for live stock

The Siemens 6ES7321-1FH00-0AA0 digital input module is a high-density accessory fundamental to the SIMATIC S7-300 Programmable Logic Controller (PLC) range. This module is expertly engineered to capture 16 distinct digital input signals and offers exceptional compatibility with standard industrial AC voltages of 120V and 230V. Its core function is to reliably read the status of various field instruments, such as limit switches and pushbuttons, converting these external electrical signals into the digital format required by the PLC’s central processor to manage and execute precise automation logic.

The Practical Benefits of the Siemens 6ES7321-1FH00-0AA0 Digital Input Module

The module’s ability to handle a broad 120V/230V AC voltage range drastically simplifies design logistics and reduces required inventory for globally deployed systems. Its 16-channel configuration ensures maximum signal-gathering efficiency, optimising rack space within the control cabinet. This digital input module ensures reliable, fast acquisition of machine status, enabling rapid, responsive control in high-demand industrial processes.

Top Functional Highlights & Key Uses of the SM321 Input Module

  • Input Channels: 16 digital inputs for high-density signal integration.
  • Voltage Range: Supports industrial standard 120V AC and 230V AC.
  • Compatibility: Designed for seamless integration with the Siemens SIMATIC S7-300 PLCs.
  • Primary Use: Monitoring the on/off status of sensors, switches, and other field devices.
  • Application: Essential for industrial machine automation, process control, and sequential control systems.

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6ES7321-1FH00-0AA0 Data Sheet(Technical Reference)

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