Ladder logic instructions

Ladder logic instructions:-

1. Bit logic instruction ( relay type instruction ):-
2. Timer/ counter instruction:-
3. Compare instruction:-
4. Compute/maths instruction:-
5. Move logical instruction:-
6. Program control instruction:-
7. scalling instruction ( Analog value processing ):-


1) BIT LOGIC INSTRUCTION:-

Bit logic instruction( relay-type instruction ) are used to moniter and control the status of bit in the data table,such as input bits or time control word bits.

1) XIC :- EXAMINE IF CLOSE
2) XIO :- EXAMINE IF OPEN
3) OTE :-OUTPUT ENERGIZE
4) OTL :- OUTPUT LATCH
5) OUT :- OUTPUT UNLATCH

2) TIMER/COUTER INSTRUCTION:-

1) TON :- TIMER ON DELAY
2) TOFF :- TIMER OFF DELAY
3) RTO :- RETENTIVE TIMER ON DELAY
4) CTU :- COUNT UP
5) CTO :- COUNT DOWN


3) COMPARE INSTRUCTION:-

1) EQU :-
2) NQU :-
3) GRE :-
4) LES :-
5) GRQ :-
6) LEQ :-
7) LIM :-

4) COMPUTE/MATHS INSTRUCTION:-

1) ADD INSTRUCTION:-
2) SUBTRACT INSTRUCTION:-
3) MULTIPLY INSTRUCTION:-
4) DIVIDE INSTRUCTION:-



5) PROGRAM CONTROL INSTRUCTION:-

1) JMP:-
2) LBL:-
3) JSR:-


6) SCALLING INSTRUCTION:-

1) SCL:-
2) SCP:-