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by airbreather
2095 days ago
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I just spent $10k on 4 Siemens 32Gig industrial SD cards for S7-1500 PLC's, in safety service. Gauranteed 500,000 writes, probably much more, but they have "mission life" quoted at ten years on the vendor cert, so will be ditched after ten years and replaced. Apparently they are a whole different type of logic design, hence the cost. Even the no-name or branded equivelent I could find were close to $1k each, but given use in safety service we went legit all the way anyway. Anything with the magic S word stamped on it seems to double in price... |
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