Siemens 6ES7321-1FH00-0AA0 SIMATIC S7-300 Digital Input SM 321, 16 DI, 120/230V AC Original Brand New
$435.01
High-performance SIMATIC S7-300 SM 321 digital input module. It provides 16 isolated digital inputs designed for 120/230 V AC signals, featuring a 20-pole front connector interface for seamless PLC integration.
Availability: In stock
Overview
The Siemens 6ES7321-1FH00-0AA0 (SM 321) serves as the interface between the SIMATIC S7-300 PLC and external process signals. This digital input module is specifically engineered to convert high-voltage AC signals from the field (sensors, switches) into the internal signal level of the PLC.
Key Benefit
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Space-Efficient Design: Compact S7-300 form factor allows for high-density configurations in control cabinets.
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High Voltage Compatibility: Directly connects to 120V or 230V AC industrial power without needing additional signal converters.
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Galvanic Isolation: Ensures the safety of the CPU and internal electronics by isolating the field signals from the backplane bus.
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Proven Reliability: Part of the globally trusted SIMATIC S7-300 family, ensuring long-term availability and support.
Functionality
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Signal Processing: Converts 120/230 V AC binary signals into digital logic for the S7-300 CPU.
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Status Indication: Features green LEDs on the front panel to indicate the switching status of each of the 16 input channels.
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Easy Installation: Mounts easily onto the S7-300 DIN rail and connects via a standard 20-pole front connector.
Specification
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Product Number: 6ES7321-1FH00-0AA0
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Series: SIMATIC S7-300
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Module Type: SM 321 Digital Input
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Number of Inputs: 16 Digital Inputs
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Input Voltage: 120/230 V AC
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Isolation: Yes
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Connection Type: 1 × 20-pole connector
Application
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Factory automation systems
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Industrial control panels
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Process automation
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Manufacturing and production lines
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| Weight | 0.2 kg |
|---|---|
| Dimensions | 120 × 40 × 125 mm |
| Product Condition | Brand New, New – Backlog, New – No Original Box, New – Original Box Opened, Used – Average, Used – Below Average, Used – Excellent, Used – Fairly Good, Used – Good, Used – Poor, Used – Very Good |
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