Limited Stock
Siemens
SIMATIC S7-300 SM 321 Digital Input 32ch
6ES7 321-1BL00-0AA0
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Category
Digital Input Module
Availability
Limited Stock
Status
Active
Recommended Replacement
ET 200SP/ET 200MP
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Product Description
SIMATIC S7-300 SM 321 high-density digital input module. 32 channels at 24VDC. Fast input response. Suitable for high-speed counting applications. Discontinued since October 2023. Widely used in automotive and assembly lines.
Technical Specifications
Inputs
32 @ 24VDC
Input Delay
1.2-4.8ms
Isolation
Yes
Width
40mm
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