Thanks @dc42 all is looking good with the new update.

Sounds great & thanks for looking into this. I look forward to trying it out once you've had time to track down the remaining memory.

You’ve hit the nail on the head.

My only question now is what can be done (I’d really like to be able to run 6 monitors & the XY&Z Endstops)?
Is it possible to configure the XY&Z Endstops on the DueX5 under RRF2?
I’m assuming freeing up enough memory in RRF3 is not going to be an option.

Hi guys, I'm having trouble using multiple laser filament monitors under RRF3.

Under the following conditions I am able to run 6 monitors at the same time in any configuration without trouble.
Firmware Name: RepRapFirmware for Duet 2 Wifi/Ethernet
Firmware Electronics: Duet Wifi 1.02 or later + DueX5
Firmware Version: 2.04RC1 (2019-07-14b1)
WiFi Server Version: 1.23
Web Interface Version: 1.22.5
Laser Filament Monitor: Version 1.7
Inputs: xstop, ystop, zstop, e1stop, (e3stop, e4stop, e5stop - without DueX5), e10stop (enc_b) & e11stop (enc_a)

However, when using RRF3, I start running into trouble.
Firmware Version: 3.0beta10
Inputs: xstop, ystop, zstop, e1stop, (duex.cs5, duex.cs6, duex.cs7, duex.cs8), connlcd.encb & connlcd.enca

I'm able to run with all 6 monitors electrically connected and any 2 enabled & giving readback. However, if I try to enable a third, I get intermittent system restarts (particularly when homing). Sorry I don't have a fully functioning system, so I can't print anything yet. If I try & enable 4 or more, the system gets stuck in a reboot loop and won't start.

If your able to look into this & release a fix in a later version (assuming that I haven’t stuffed up) that would be great.
config RRF3 (2019-09-27).g

Thanks.