adccommunitymod (AutomationDirect) asked a question.

Max number if simultanious PID loops on BX-DM1E-36ED23

Created Date: October 17,2019

Created By: Ken_M

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Looking to build an extruder-like machine. Will need to control up to 6 heat zones, and 3+ steppers, at least one of which will need it's speed controlled by an analog input via a PID loop. Assuming the correct modules (temperature, high speed if necessary) are installed, how many PID loops can I run simultaneously? Thanks in advance


  • adccommunitymod (AutomationDirect)

    Created Date: October 17,2019

    Created by: Ken_M

    Looking to build an extruder-like machine. Will need to control up to 6 heat zones, and 3+ steppers, at least one of which will need it's speed controlled by an analog input via a PID loop. Assuming the correct modules (temperature, high speed if necessary) are installed, how many PID loops can I run simultaneously?

    Thanks in advance

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  • adccommunitymod (AutomationDirect)

    Created Date: October 17,2019

    Created by: pbw

    I think your analog I/O count (Process Variables) will be your limit.

    As far as PID Loops, I think the only practical limit is memory. I believe it would handle 1600+ Loops just fine, anyway it compiles and programs ok.

  • adccommunitymod (AutomationDirect)

    Created Date: October 18,2019

    Created by: RogerR

    I have used the BX-DM1E-36ED23-D on a number of blown film extrusion lines to control the entire line.

    Heat/cool zones, gearbox cooling, nip cooling, feed section cooling, bubble sizing, PID Loops 30+