PMDG 747 V3 -1.5 module, can two of the four engines be started at the same time? I made changes

Turned out to be：

function ENG1_FUEL_CTRL_SWITCH_run ()
    ipc.control(PMDGBaseVariable + 968, 0)
    DspShow ("ENG1", "run")
end

function ENG1_FUEL_CTRL_SWITCH_cutoff ()
    ipc.control(PMDGBaseVariable + 968, 1)
    DspShow ("ENG1", "cut", "ENG1", "cutoff")
end

function ENG1_FUEL_CTRL_SWITCH_toggle ()
    if _tl("switch_968_74X", 100) then
       ENG1_FUEL_CTRL_SWITCH_run ()
    else
       ENG1_FUEL_CTRL_SWITCH_cutoff ()
    end
end

--

function ENG2_FUEL_CTRL_SWITCH_run ()
    ipc.control(PMDGBaseVariable + 969, 0)
    DspShow ("ENG2", "run")
end

function ENG2_FUEL_CTRL_SWITCH_cutoff ()
    ipc.control(PMDGBaseVariable + 969, 1)
    DspShow ("ENG2", "cut", "ENG2", "cutoff")
end

function ENG2_FUEL_CTRL_SWITCH_toggle ()
    if _tl("switch_969_74X", 100) then
       ENG2_FUEL_CTRL_SWITCH_run ()
    else
       ENG2_FUEL_CTRL_SWITCH_cutoff ()
    end
end

function ENG3_FUEL_CTRL_SWITCH_run ()
    ipc.control(PMDGBaseVariable + 970, 0)
    DspShow ("ENG3", "run")
end

function ENG3_FUEL_CTRL_SWITCH_cutoff ()
    ipc.control(PMDGBaseVariable + 970, 1)
    DspShow ("ENG3", "cut", "ENG3", "cutoff")
end

function ENG3_FUEL_CTRL_SWITCH_toggle ()
    if _tl("switch_970_74X", 100) then
       ENG3_FUEL_CTRL_SWITCH_run ()
    else
       ENG3_FUEL_CTRL_SWITCH_cutoff ()
    end
end

function ENG4_FUEL_CTRL_SWITCH_run ()
    ipc.control(PMDGBaseVariable + 971, 0)
    DspShow ("ENG4", "run")
end

function ENG4_FUEL_CTRL_SWITCH_cutoff ()
    ipc.control(PMDGBaseVariable + 971, 1)
    DspShow ("ENG4", "cut", "ENG4", "cutoff")
end

function ENG4_FUEL_CTRL_SWITCH_toggle ()
    if _tl("switch_971_74X", 100) then
       ENG4_FUEL_CTRL_SWITCH_run ()
    else
       ENG4_FUEL_CTRL_SWITCH_cutoff ()
    end
end

 

Now i added：

function ENG1_and2 FUEL_CTRL_SWITCH_run ()
    ipc.control(PMDGBaseVariable + 968, 0)
    DspShow ("ENG1", "run")
    DspShow ("ENG2", "run")
end

function ENG1_and2 FUEL_CTRL_SWITCH_cutoff ()
    ipc.control(PMDGBaseVariable + 968, 1)
    DspShow ("ENG1", "cut", "ENG1", "cutoff")
    DspShow ("ENG2", "cut", "ENG2", "cutoff")
end

function ENG1_and2 FUEL_CTRL_SWITCH_toggle ()
    if _tl("switch_968_74X", 100) then
       ENG1_and2 FUEL_CTRL_SWITCH_run ()
    else
       ENG1_and2 FUEL_CTRL_SWITCH_cutoff ()
    end
end

function ENG3_and4 FUEL_CTRL_SWITCH_run ()
    ipc.control(PMDGBaseVariable + 968, 0)
    DspShow ("ENG3", "run")
    DspShow ("ENG4", "run")
end

function ENG3_and4 FUEL_CTRL_SWITCH_cutoff ()
    ipc.control(PMDGBaseVariable + 968, 1)
    DspShow ("ENG3", "cut", "ENG3", "cutoff")
    DspShow ("ENG4", "cut", "ENG4", "cutoff")
end

function ENG3_and4 FUEL_CTRL_SWITCH_toggle ()
    if _tl("switch_968_74X", 100) then
       ENG3_and4 FUEL_CTRL_SWITCH_run ()
    else
       ENG3_and4 FUEL_CTRL_SWITCH_cutoff ()
 end

 

But Linda did not respond, what should I do?

Edited July 8, 20214 yr by zhensanmao

I am sorry but I do not know the B747 and am unable to help you. The module author is not currently supporting LINDA.

PS. Please do not send the same questions by email.

On the -400 you start one engine at a time, on the -8 you can start 2 at a time.

12 hours ago, YMMB said:

在 -400 上，您一次启动一台发动机，在 -8 上，您一次可以启动 2 个。

The key is that there are only two switches on my hardware peripherals. How can one switch control two engines to start at the same time?

You can combine 2 or more functions by placing them inside another within the aircraft user.lau file. 
 

function myswitch()

function1()

function2()

end

 

-- Dummy user functions file
-- ===========================

-- This file is loaded right after main actions.lua script loaded.
-- You can use this file to:
-- 1. Override any functions or settings in main script
-- 2. Execute any desired startup sequence for this aircraft (i.e. your own c&d state macro)
-- 3. ... use your imagination

-- This file will not be replaced on the aircraft module update, so all of your modifications
-- will remain active. Best practice from this moment is DO NOT MAKE ANY CHANGES in original
-- actions.lua file. Make all the modifications HERE.

-- insert your code below here:

function ENG1_and2 FUEL_CTRL_SWITCH_run ()
    ipc.control(PMDGBaseVariable + 968, 0)
    DspShow ("ENG1", "run")
    DspShow ("ENG2", "run")
end

function ENG1_and2 FUEL_CTRL_SWITCH_cutoff ()
    ipc.control(PMDGBaseVariable + 968, 1)
    DspShow ("ENG1", "cut", "ENG1", "cutoff")
    DspShow ("ENG2", "cut", "ENG2", "cutoff")
end

function ENG1_and2 FUEL_CTRL_SWITCH_toggle ()
    if _tl("switch_968_74X", 100) then
       ENG1_and2 FUEL_CTRL_SWITCH_run ()
    else
       ENG1_and2 FUEL_CTRL_SWITCH_cutoff ()
    end
end

function ENG3_and4 FUEL_CTRL_SWITCH_run ()
    ipc.control(PMDGBaseVariable + 968, 0)
    DspShow ("ENG3", "run")
    DspShow ("ENG4", "run")
end

function ENG3_and4 FUEL_CTRL_SWITCH_cutoff ()
    ipc.control(PMDGBaseVariable + 968, 1)
    DspShow ("ENG3", "cut", "ENG3", "cutoff")
    DspShow ("ENG4", "cut", "ENG4", "cutoff")
end

function ENG3_and4 FUEL_CTRL_SWITCH_toggle ()
    if _tl("switch_968_74X", 100) then
       ENG3_and4 FUEL_CTRL_SWITCH_run ()
    else
       ENG3_and4 FUEL_CTRL_SWITCH_cutoff ()
    end
end

-- Just a message in console
_log("[USER] User's modifications script is loaded...")

 

 

 

 

Is that right? But no change

I followed this method to modify, all the buttons are invalid