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Basic Ladder Diagrams Section 4-3
4-3-7 Coding Multiple Right-hand Instructions
If there is more than one right-hand instruction executed with the same execu-
tion condition, they are coded consecutively following the last condition on the
instruction line. In the following example, the last instruction line contains one
more condition that corresponds to an AND with IR 00004.
00004 00005
00002 00003
00000 00001
01000 01001
10000
10000
00006
Block c
Block bBlock a
OR LD
LD 00000
AND 00001
OR 10000
AND 00002
AND NOT 00003
LD 01000
AND 01001
OR 00006
LD 00004
AND 00005
AND LD
Address Instruction Operands
00000 LD 00000
00001 AND 00001
00002 LD 01000
00003 AND 01001
00004 OR LD --
00005 OR 10000
00006 AND 00002
00007 AND NOT 00003
00008 LD 00004
00009 AND 00005
00010 OR 00006
00011 AND LD --
00012 OUT 10000
00000 00003
00001
00004
00002
HR 0000
HR 0001
10000
10006
Address Instruction Operands
00000 LD 00000
00001 OR 00001
00002 OR 00002
00003 OR HR 0000
00004 AND 00003
00005 OUT HR 0001
00006 OUT 10000
00007 AND 00004
00008 OUT 10006