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SA-20 / SR-20 Connection with PC

Question

Question

SA-20 (SR-20) is in operation.
It’s a very old controller, so I’m considering updating it.
I want to read the program on my computer and print it. Is it possible?

Answer

Answer

It’s impossible.
When the SA-20 (SR-20) was developed, personal computers were not widespread, and it was not designed for serial communication with external devices.
Instruction word printers, dedicated illustrated programmers, etc. existed, but they have already been abolished.
We apologize for your inconvenience, but there is no other way but to read the command word using the command word programmer A-21P (R-21P) and record it by handwriting.

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