Glasmaßstab EIA-422 an Mesa 7i85 (S)

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31 Jul 2025 15:32 #332603 by Asymmetrisch
Glasmaßstab EIA-422 an Mesa 7i85 (S) was created by Asymmetrisch
Hallo zusammen,

leider bin ich mir trotz vielem Lesen noch immer nicht sicher, wie Glasmaßstäbe mit EIA-422-Schnittstelle korrekt an Mesa-Karten (z.B. 7i85 oder 7i85S) angeschlossen werden können - wird hier ein Signalkonverter benötigt?
Wenn ja, wäre hierzu der "422ENC One channel RS-422 to TTL adapter" von Mesa geeignet?


Danke,
Gerhard

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31 Jul 2025 16:30 #332605 by PCW
Replied by PCW on topic Glasmaßstab EIA-422 an Mesa 7i85 (S)
No additional hardware is needed, you simply make sure the 7I85S
is jumpered for differential mode (this is the as-shipped default)

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31 Jul 2025 17:09 #332607 by Asymmetrisch
Replied by Asymmetrisch on topic Glasmaßstab EIA-422 an Mesa 7i85 (S)
Thank you very much for your quick reply.
The 5 serial connectors on the 7i85 (without "S") are outputs for drives with RS-422 interface, correct?

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31 Jul 2025 17:31 #332609 by PCW
Replied by PCW on topic Glasmaßstab EIA-422 an Mesa 7i85 (S)
The RS-422 interfaces on the 7I85 are most commonly used
for SmartSerial I/O expansion but can be used for other RS-422
uses like absolute encoders (SSI or BISS)

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