adccommunitymod (AutomationDirect) asked a question.

F4-CP128-1 ignoring jumpers

Created Date: December 02,2015

Created By: phatton

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I have a F4-CP128-1 Basic Co-processor that seems to be ignoring the jumper settings to change from RS-232 to RS-485. With the jumpers in the 485 position it still is putting out only the 232 signal. Has anyone seen this behavior before and know of a fix? I have tried the reset jumper which seems to do a reset but the port setting jumpers still do not work.


  • adccommunitymod (AutomationDirect)

    Created Date: December 02,2015

    Created by: phatton

    I have a F4-CP128-1 Basic Co-processor that seems to be ignoring the jumper settings to change from RS-232 to RS-485. With the jumpers in the 485 position it still is putting out only the 232 signal. Has anyone seen this behavior before and know of a fix? I have tried the reset jumper which seems to do a reset but the port setting jumpers still do not work.