Filament Sensor of Mega S is ignored

[NilsRo]

Describe the bug
A filament Runout is ignored using Octoprint and Marlin with Mega S printer. I am not sure if it is the firmware configuration or perhaps octoprint but from the configuration in the sourcecode the runout sensor seems inactive.

To Reproduce

1. Print with less filament
2. Runout will not stop printing

Expected behavior
A filament runout should pause printing

Printer (please complete the following information):

• Firmware version: 1.1.9.1
• Printing method: OctoPrint, Cura
• Model: Mega-S

M503 Output
Send: M503
Recv: echo: G21 ; (mm)
Recv:
Recv: echo:Filament settings: Disabled
Recv: echo: M200 D1.75
Recv: echo: M200 D0
Recv: echo:Steps per unit:
Recv: echo: M92 X80.00 Y80.00 Z400.00 E425.53
Recv: echo:Maximum feedrates (units/s):
Recv: echo: M203 X500.00 Y500.00 Z6.00 E60.00
Recv: echo:Maximum Acceleration (units/s2):
Recv: echo: M201 X3000 Y2000 Z60 E10000
Recv: echo:Acceleration (units/s2): P<print_accel> R<retract_accel> T<travel_accel>
Recv: echo: M204 P4000.00 R3000.00 T4000.00
Recv: echo:Advanced: Q<min_segment_time_us> S<min_feedrate> T<min_travel_feedrate> X<max_x_jerk> Y<max_y_jerk> Z<max_z_jerk> E<max_e_jerk>
Recv: echo: M205 Q20000 S0.00 T0.00 X20.00 Y20.00 Z0.40 E5.00
Recv: echo:Home offset:
Recv: echo: M206 X0.00 Y0.00 Z0.00
Recv: echo:Mesh Bed Leveling:
Recv: echo: M420 S0 Z0.00
Recv: echo: G29 S3 X1 Y1 Z-0.08000
Recv: echo: G29 S3 X2 Y1 Z-0.12000
Recv: echo: G29 S3 X3 Y1 Z-0.12000
Recv: echo: G29 S3 X4 Y1 Z-0.16000
Recv: echo: G29 S3 X5 Y1 Z-0.22000
Recv: echo: G29 S3 X1 Y2 Z-0.14000
Recv: echo: G29 S3 X2 Y2 Z-0.10000
Recv: echo: G29 S3 X3 Y2 Z-0.06000
Recv: echo: G29 S3 X4 Y2 Z-0.10000
Recv: echo: G29 S3 X5 Y2 Z-0.14000
Recv: echo: G29 S3 X1 Y3 Z-0.16000
Recv: echo: G29 S3 X2 Y3 Z-0.10000
Recv: echo: G29 S3 X3 Y3 Z-0.06000
Recv: echo: G29 S3 X4 Y3 Z-0.06000
Recv: echo: G29 S3 X5 Y3 Z-0.10000
Recv: echo: G29 S3 X1 Y4 Z-0.20000
Recv: echo: G29 S3 X2 Y4 Z-0.14000
Recv: echo: G29 S3 X3 Y4 Z-0.10000
Recv: echo: G29 S3 X4 Y4 Z-0.08000
Recv: echo: G29 S3 X5 Y4 Z-0.10000
Recv: echo: G29 S3 X1 Y5 Z-0.20000
Recv: echo: G29 S3 X2 Y5 Z-0.16000
Recv: echo: G29 S3 X3 Y5 Z-0.12000
Recv: echo: G29 S3 X4 Y5 Z-0.12000
Recv: echo: G29 S3 X5 Y5 Z-0.14000
Recv: echo:Endstop adjustment:
Recv: echo: M666 Z0.00
Recv: echo:PID settings:
Recv: echo: M301 P16.30 I1.14 D58.42
Recv: echo: M304 P222.44 I43.80 D282.45
Recv: echo:Linear Advance:
Recv: echo: M900 K0.00
Recv: echo:Filament load/unload lengths:
Recv: echo: M603 L538.00 U555.00
Recv: ok

[David Ramiro]

Duplicate of #96