Siemens
6ES7421-1FH00-0AA0
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Description
SIMATIC S7-400 SM 421 digital input module
Siemens SIMATIC S7-400 SM 421 digital input module used to connect mains-voltage contacts and switches to an S7-400 CPU. Attempted product-page fetch from ar.wiautomation.com was blocked (HTTP 403).
- Product type: SIMATIC SM421 Digital Input module for S7-400
- Brand
- Siemens
- Category
- PLC & I/O Modules
Specifications
| Product type | SIMATIC SM421 Digital Input module for S7-400 |
|---|
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