Is there a way to write in conditional settings? Like if Fan 0 's power is greater than 0% then fan 1's is 66%.

Well, I feel kinda dumb, but thank you very much

I've installed the BL Touch to my Duet and I'm running into a strange issue. I will manually zero the nozzle to the bed(G92 Z0) move up 10mm(G1 Z10) and do several probes(G30 S-1) and then input that value(for me is was like 4 mm) into the config under Z probe offsets. This is all well and good even up to a mesh bed probing, however printing is a different story. After all is said and done and I send the code G1 Z0, it will always hover 4 to 5 mm above the build plate and the same goes for printing. Ive tried everything from adjusting my start Gcode to changing the offset but to no avail. Here is my config. Thank You.

; Configuration file for Duet WiFi (firmware version 1.21)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2 on Mon May 20 2019 16:13:32 GMT-0500 (Central Daylight Time)

; General preferences
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves

; Network
M550 P"PussySlayer" ; Set machine name
M552 S1 ; Enable network
M587 S"11818e" P"endless.955.drift" ; Configure access point. You can delete this line once connected
M586 P0 S1 ; Enable HTTP
M586 P1 S0 ; Disable FTP
M586 P2 S0 ; Disable Telnet

; Drives
M569 P0 S0 ; Physical drive 0 goes backwards
M569 P1 S1 ; Physical drive 1 goes forwards
M569 P2 S0 ; Physical drive 2 goes backwards
M569 P3 S1 ; Physical drive 3 goes forwards
M569 P4 S1 ; Physical drive 4 goes forwards
M584 X0 Y1 E3 Z2:4 U4 P5 ; Apply custom drive mapping
M350 X256 Y256 Z256:256 U256 E256 I0 ; Configure microstepping without interpolation
M92 X1280.00 Y1280.00 Z6400.00:6400.00 U6400.00 E6790.00 ; Set steps per mm
M566 X1800.00 Y1800.00 Z24.00:24.00 U24.00 E24.00 ; Set maximum instantaneous speed changes (mm/min)
M203 X12000.00 Y12000.00 Z360.00:360.00 U360.00 E360.00 ; Set maximum speeds (mm/min)
M201 X1000.00 Y1000.00 Z2040.00:2040.00 U2040.00 E500.00 ; Set accelerations (mm/s^2)
M906 X1200.00 Y1200.00 Z1200.00:1200.00 U1200.00 E1200.00 I0 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; Set axis minima
M208 X220 Y220 Z220 S0 ; Set axis maxima

; Endstops
M574 X1 Y1 Z2 U2 S0 ; Set active low and disabled endstops

; Z-Probe
M307 H3 A-1 C-1 D-1 ; Disable heater on PWM channel for BLTouch
M558 P9 H10 F120 T6000 ; Set Z probe type to bltouch and the dive height + speeds
G31 P500 X15 Y20 Z4.16 ; Set Z probe trigger value, offset and trigger height
M557 X10:150 Y10:200 S30 ; Define mesh grid

; Heaters
M307 H0 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit
M305 P0 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 0
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
M305 P1 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 1
M143 H1 S280 ; Set temperature limit for heater 1 to 280C

; Fans
M106 P0 S1 I0 F500 H T10 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P1 S0 I0 F500 H-1 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off

; Tools
M563 P0 D0 H1 ; Define tool 0
G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets
G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C

; Automatic saving after power loss is not enabled

; Custom settings
M307 H3 A-1 C-1 D-1
M558 P9 H5 F100 T2000
G31 X0 Y0 Z0 P25

; Miscellaneous
M501 ; Load saved parameters from non-volatile memory

Is it like 4 to 5 mm away from bed even at z=0? @chriskimbr

After Probing with G30 S-1 I take that height and plug it into the G31 line of config file, forgot to mention.

Hey Guys I'm finding a weird issue with the probe. Ive set the probe as my Z Endstop now and I've configured the offset countless times but it doesn't seem to change where the printer thinks zero is. I will set the offset to 0, manually configure where Zero is G92, and run G30 S-1. The printer after restarting then homes when I command it to then goes to z = 5.0 but its really more like 8- 10 and I have no clue why. I've read the BeTrue article and can't figure it out.
Here's my Config:
; Configuration file for Duet WiFi (firmware version 1.21)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2 on Mon May 06 2019 22:38:59 GMT-0500 (Central Daylight Time)

; General preferences
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves

; Network
M550 P"Mods Suck" ; Set machine name
M552 S1 ; Enable network
M587 S"11818e" P"endless.955.drift" ; Configure access point. You can delete this line once connected
M586 P0 S1 ; Enable HTTP
M586 P1 S0 ; Disable FTP
M586 P2 S0 ; Disable Telnet

; Drives
M569 P0 S0 ; Drive 0 goes backwards
M569 P1 S1 ; Drive 1 goes forwards
M569 P2 S0 ; Drive 2 goes backwards
M569 P3 S1 ; Drive 3 goes forwards
M350 X256 Y256 Z256 E256 I0 ; Configure microstepping without interpolation
M92 X1280.00 Y1280.00 Z6400.00 E6790.61 ; Set steps per mm
M566 X1800.00 Y1800.00 Z24.00 E240.00 ; Set maximum instantaneous speed changes (mm/min)
M203 X12000.00 Y12000.00 Z360.00 E2400.00 ; Set maximum speeds (mm/min)
M201 X1000.00 Y1000.00 Z2040.00 E500.00 ; Set accelerations (mm/s^2)
M906 X1200.00 Y1200.00 Z1200.00 E1700.00 I0 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; Set axis minima
M208 X220 Y220 Z220 S0 ; Set axis maxima

; Endstops
M574 X1 Y1 S0 ; Set active low and disabled endstops

; Z-Probe
M574 Z1 S2 ; Set endstops controlled by probe
M307 H3 A-1 C-1 D-1 ; Disable heater on PWM channel for BLTouch
M558 P9 H10 F120 T6000 ; Set Z probe type to bltouch and the dive height + speeds
G31 P25 X15 Y20 Z3.4 ; Set Z probe trigger value, offset and trigger height
M557 X10:200 Y10:200 S30 ; Define mesh grid

; Heaters
M307 H0 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit
M305 P0 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 0
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
M305 P1 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 1
M143 H1 S280 ; Set temperature limit for heater 1 to 280C

; Fans
M106 P0 S1 I0 F500 H T10 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P1 S0 I0 F500 H-1 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off

; Tools
M563 P0 D0 H1 ; Define tool 0
G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets
G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C

; Automatic saving after power loss is not enabled

; Custom settings
M307 H3 A-1 C-1 D-1
M558 P9 H5 F100 T2000
G31 X0 Y0 Z0 P25

; Miscellaneous
M501 ; Load saved parameters from non-volatile memory

All is working! Thanks Guys!

The interface reads 0 and the BL is solid red(turns off when I pull out the probe) and it does a few test clicks when I turn on the printer but any attempt to deploy or retract goes through the console fine but the BL doesn't do anything.

New Config:
; Configuration file for Duet WiFi (firmware version 1.21)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2 on Tue Apr 30 2019 09:39:22 GMT-0500 (Central Daylight Time)

; General preferences
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves

; Network
M550 P"PussySlayer" ; Set machine name
M552 S1 ; Enable network
M587 S"11818e" P"endless.955.drift" ; Configure access point. You can delete this line once connected
M586 P0 S1 ; Enable HTTP
M586 P1 S0 ; Disable FTP
M586 P2 S0 ; Disable Telnet

; Drives
M569 P0 S0 ; Drive 0 goes backwards
M569 P1 S1 ; Drive 1 goes forwards
M569 P2 S0 ; Drive 2 goes backwards
M569 P3 S1 ; Drive 3 goes forwards
M350 X256 Y256 Z256 E256 I0 ; Configure microstepping without interpolation
M92 X1280.00 Y1280.00 Z6400.00 E6790.61 ; Set steps per mm
M566 X900.00 Y900.00 Z12.00 E120.00 ; Set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; Set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E250.00 ; Set accelerations (mm/s^2)
M906 X1200.00 Y1200.00 Z1200.00 E1600.00 I0 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; Set axis minima
M208 X220 Y220 Z220 S0 ; Set axis maxima

; Endstops
M574 X1 Y1 Z1 S0 ; Set active low and disabled endstops

; Z-Probe
M307 H3 A-1 C-1 D-1 ; Disable heater on PWM channel for BLTouch
M558 P9 H5 F120 T6000 ; Set Z probe type to bltouch and the dive height + speeds
G31 P500 X0 Y0 Z2.5 ; Set Z probe trigger value, offset and trigger height
M557 X10:210 Y10:210 S25 ; Define mesh grid

; Heaters
M307 H0 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit
M305 P0 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 0
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
M305 P1 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 1
M143 H1 S280 ; Set temperature limit for heater 1 to 280C

; Fans
M106 P0 S1 I0 F500 H T10 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P1 S0 I0 F500 H-1 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off

; Tools
M563 P0 D0 H1 ; Define tool 0
G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets
G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C

; Automatic saving after power loss is not enabled

; Custom settings
M307 H3 A-1 C-1 D-1
M558 P9 H5 F100 T2000
G31 X0 Y0 Z0 P25

; Miscellaneous
M501 ; Load saved parameters from non-volatile memory

Deploy probe:
; deployprobe.g
; called to deploy a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v2 on Tue Apr 30 2019 09:39:22 GMT-0500 (Central Daylight Time)
M280 P3 S10

Retract Probe:
; retractprobe.g
; called to retract a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v2 on Tue Apr 30 2019 09:39:22 GMT-0500 (Central Daylight Time)
M280 P3 S90

The BL touch is now solid red and will test when It turns on but I cannot get it to deploy or retract.