Eaton ELC-PB, Programming Manual

Page: 675 / 728

E L C P r o g r a m m i n g M a n u a l
F o r m o r e i n f o r m a t i o n v i s i t : w w w. e a t o n . c o m M N 0 5 0 0 3 0 0 3 E
3 - 5 0 6
API Mnemonic Operands Function
232~
238
D AND* S
1
, S
2
Series Contact Comparison
Bit Devices Word devices Program Steps
Type
OP
X Y M S K H KnX KnY KnM KnS T C D E F
S
1
* * * * * * * * * * *
S
2
* * * * * * * * * * *
AND*: 5 steps
DAND*: 9 steps
ELC ELCB ELCM
PB PC/PA/PH PV PB PH/PA
32 16 P 32 16 P 32 16 P 32 16 P 32 16 P
Operands:
S
1
: Data source value 1 S
2
: Data source value 2
Description:
1. Compare the contents of S
1
and of S
2
. For example, “AND=”,compares S
1
and of S
2
and if the
comparison result is “=” , the instruction is true, and if it is “
≠
” , the instruction is false.
2. The AND* instruction is an input instruction
API No.
16 -bit
instruction
32 -bit
instruction
Instruction is
true
Instruction is
false
232
AND
＝
D AND
＝
S
1
＝
S
2
S
1
≠
S
2
233
AND
＞
D AND
＞
S
1
＞
S
2
S
1
≦
S
2
234 AND
＜
D AND
＜
S
1
＜
S
2
S
1
≧
S
2
236
AND
＜＞
D AND
＜＞
S
1
≠
S
2
S
1
＝
S
2
237
AND
＜＝
D AND
＜＝
S
1
≦
S
2
S
1
＞
S
2
238
AND
＞＝
D AND
＞＝
S
1
≧
S
2
S
1
＜
S
2
3. If a 32-bit counter is used with this instruction for comparison, be sure to use the 32-bit
instruction (DAND*). If the 16-bit instruction (AND*) is used with a 32-bit counter, a “Program
Error”, will occur and the red “ERROR” indicator on the ELC panel will blink.
Program Example:
1. If X0=ON and the accumulated value of counter C10 equals K200, Y20=ON.
2. If X1=OFF and the contents of register D0 is not equal to K
–
10, set Y21=ON.
AND=
K200 C10 Y20
AND<>
K-10 D0 SET Y21
X1
X0