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Free Reader, $0
- 10% off every PDF
- Sample chapters of every book
- Books tagged Free, in full
- Your PDFs kept in your account for good
- Occasional email when a new title ships
Pro Library
- 40% off every PDF
- The Pro free shelf: full books at no charge, rotating
- New releases before Amazon
- Everything in Free Reader
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PLC Simulator, $97 one-time
A live Modbus TCP practice plant you operate from your browser and read from your own HMI or SCADA software. A separate one-time purchase with lifetime access, for as long as the simulator service runs. Includes Pro Library membership for life. A founding-member offer for a limited time. Later the simulator moves to an annual subscription; founding members keep their lifetime access. Buy or open it