Why the initial state of Rrelay is 1 even if all other instructions have the initial state 0?
Madam/sir,Q1)How the Internal Relay Coil is energized by Up & Down Counter viz. CTU & CTD even in the initial state when neither XUp nor XDown is Pressed or say their initial states are 0?Q2)Can we compare an Instruction with a constant or variable in any of the compare or such kind of instruction, such as been done with CCounter? I want to mean that CCounter is an Instruction whereas Counter is the name given to it, so, can we directly compare some variable or constant of an instruction (say compare instruction's 0 (constant)) with another instruction (I am not saying variable or constant of the second instruction, I am saying the instruction itself, say CCount) directly, as being shown in the tutorial?
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Outline:Connection of SMPS and USBasp to the Mainboard Insert a Contact and a Coil Insert one more Contact parallel to existing Contact To the right of first Contact, insert a CTU To the right of second Contact, insert a CTD Name both counters with same name Insert a rung below Insert a GEQ and a Coil in the new rung Real-time simulation of CTD Make hardware connections for the CTD using Traffic light module and Switchboard module Working of CTD on hardware Where can an up-down counter be used?
Connection of SMPS and USBasp to the Mainboard Insert a Contact and a Coil Insert one more Contact parallel to existing Contact To the right of first Contact, insert a CTU To the right of second Contact, insert a CTD Name both counters with same name Insert a rung below Insert a GEQ and a Coil in the new rung Real-time simulation of CTD Make hardware connections for the CTD using Traffic light module and Switchboard module Working of CTD on hardware Where can an up-down counter be used?
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