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The following diagram requires AND LOAD to be converted to mnemonic code
because three pairs of parallel conditions lie in series. The two options for coding
the programs are also shown.
00000
00002
00004
00001
00003
00005
00500
Address
Instruction
Operands
Address
Instruction
Operands
00000
LD
00000
00001
OR NOT
00001
00002
LD NOT
00002
00003
OR
00003
00004
AND LD
—
00005
LD
00004
00006
OR
00005
00007
AND LD
—
00008
OUT
00500
00000
LD
00000
00001
OR NOT
00001
00002
LD NOT
00002
00003
OR
00003
00004
LD
00004
00005
OR
00005
00006
AND LD
—
00007
AND LD
—
00008
OUT
00500
Again, with the method on the right, a maximum of eight blocks can be com-
bined. There is no limit to the number of blocks that can be combined with the
first method.
The following diagram requires OR LOAD instructions to be converted to mne-
monic code because three pairs of series conditions lie in parallel to each other.
00000 00001
00002 00003
00040 00005
00501
The first of each pair of conditions is converted to LOAD with the assigned bit
operand and then ANDed with the other condition. The first two blocks can be
coded first, followed by OR LOAD, the last block, and another OR LOAD; or the
three blocks can be coded first followed by two OR LOADs. The mnemonic
codes for both methods are shown below.
00000
LD
00000
00001
AND NOT
00001
00002
LD NOT
00002
00003
AND NOT
00003
00004
OR LD
—
00005
LD
00004
00006
AND
00005
00007
OR LD
—
00008
OUT
00501
00000
LD
00000
00001
AND NOT
00001
00002
LD NOT
00002
00003
AND NOT
00003
00004
LD
00004
00005
AND
00005
00006
OR LD
—
00007
OR LD
—
00008
OUT
00501
Address
Instruction
Operands
Address
Instruction
Operands
Again, with the method on the right, a maximum of eight blocks can be com-
bined. There is no limit to the number of blocks that can be combined with the
first method.
Both of the coding methods described above can also be used when using AND
LOAD and OR LOAD, as long as the number of blocks being combined does not
exceed eight.
Combining AND LOAD and
OR LOAD
Basic Ladder Diagrams
Section 4-4
Содержание SYSMAC C200HS
Страница 1: ...Cat No W235 E1 05 C200HS SYSMAC Programmable Controllers...
Страница 2: ...C200HS Programmable Controllers Operation Manual Revised February 2002...
Страница 3: ...iv...
Страница 5: ...vi...
Страница 379: ...371 SR word Corresponding key s Bit 279 03 04 05 3 06 07 VER 08 09 Monitoring Operation and Modifying Data Section 7 1...
Страница 470: ...468 Programmer Program Date Page Word Contents Notes Word Contents Notes Data Storage...
Страница 471: ...469 Programmer Program Date Page TC address T or C Set value Notes TC address T or C Set value Notes Timers and Counters...