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Freelance V8.1 compatible with CI920
800xA > I/Os > S900 I/O > CI920 (PROFIBUS-DPV1), 800xA > I/Os > S900 I/O, 800xA > System > System version > 800xA 6.0.1, Freelance > Controllers > AC 900F > CI920 (PROFIBUS-DPV1), Freelance > I/Os > S900 I/O