21.11.12 Operation Example

Logical Operation Examples

The following shows logical operation examples.

• ( ( 100 > 99 ) and ( 200 <> 100 ) )

Result: ON

• ( ( 100 > 99 ) and ( 200 <> 200 ) )

Result: OFF

• ( ( 100 > 99 ) or ( 200 <> 200 ) )

Result: ON

• ( ( 100 < 99 ) or ( 200 <> 200 ) )

Result: OFF

• not ( 100 > 99 )

Result: OFF

• not ( 100 < 99 )

Result: ON

• [ w:[PLC1]D200 ] < 10

Result: True if D200 is smaller than 10.

• not [ w:[PLC1]D200 ]

Result: True if D200 is 0.

• ([ w:[PLC1]D200 ] == 2) or ([ w:[PLC1]D200 ] == 5)

Result: True if D200 is 2 or 5.

• ([ w:[PLC1]D200 ] < 5) and ([ w:[PLC1]D300 ] < 8)

Result: True if D200 is smaller than 5, and D300 is smaller than 8.

• [ w:[PLC1]D200 ] < 10

Result: True if D200 is smaller than 10.

• not [ w:[PLC1]D200 ]

Result: True if D200 is 0.

• ([ w:[PLC1]D200 ] == 2) or ([ w:[PLC1]D200 ] == 5)

Result: True if D200 is 2 or 5.

• ([ w:[PLC1]D200 ] < 5) and ([ w:[PLC1]D300 ] < 8)

Result: True if D200 is smaller than 5, and D300 is smaller than 8.

Bit Operation Examples

The following shows bit operation examples.

• [ w:[PLC1]D200 ] << 4

Result: The data in D200 is shifted 4 bits to the left.

• [ w:[PLC1]D200 ] >> 4

Result: The data in D200 is shifted 4 bits to the right.

• 12(0000Ch) is stored in D301, using the BIN format

[ w:[PLC1]D200 ] = [ w:[PLC1]D300 ] >> [ w:[PLC1]D301 ]
Result: The data in D300 is shifted 12 bits to the right and assigned to D200.

• [ w:[PLC1]D200 ] << 4

Result: The data in D200 is shifted 4 bits to the left.

• [ w:[PLC1]D200 ] >> 4

Result: The data in D200 is shifted 4 bits to the right.

• 12(0000Ch) is stored in D310, using the BIN format.

[ w:[PLC1]D200 ] = [ w:[PLC1]D300 ] >> [ w:[PLC1]D310 ]
Result: The data in D300 is shifted 12 bits to the right and assigned to D200.

• Bitwise AND

0 & 0 // Result is 0
0 & 1 // Result is 0
1 & 1 // Result is 1
0x1234 & 0xF0F0 // Result is 0x1030

• Bitwise OR

0 | 0 // Result is 0
0 | 1 // Result is 1
1 | 1 // Result is 1
0x1234 | 0x9999 // Result is 0x9BBD

• Logical OR

0 ^ 0 // Result is 0
0 ^ 1 // Result is 1
1 ^ 1 // Result is 0

• Bitwise 1's Complement (When the Data Format is BIN16+)

~ 0 // Result is 0xFFFF
~ 1 // Result is 0xFFFE

Conditional Branch Usage Calculation Examples

Control program flow using "if-endif" and "if-else-endif"

• if - endif

if (condition)
{expression1}
endif

If the condition is true, Process 1 is run. If false, skips Process 1.

For example,

if ( [ w:[PLC1]D200 ] < 5 )
{
[ w:[PLC1]D100 ] = 1
}
endif

If data in D200 is less than 5, then assigns 1 to D100.

• if - else - endif

if (condition)
{expression1}
else
{expression2}
endif

If the condition is true, runs Process 1. If false, runs Process 2.

For example,

if ( [ w:[PLC1]D200 ] < 5 )
{
[ w:[PLC1]D100 ] = 1
}
else
{
[ w:[PLC1]D100 ] = 0
}
endif

If the value in D200 is less than 5, assigns 1 to D100. Otherwise, assigns 0.

Offset Address Usage Calculation Examples

Offset Specification: Special Calculation Examples Using [w:D00100]#[t:0000].

• Script I/O: 16 bit unsigned, [t:0000]= 65526, the resulting address is [w:[PLC1]D00090].

100+65526=64(Hex)+FFF6(Hex)=1005A^*1(Hex)→005A(Hex)=90

• Script I/O: 16 bit signed, [t:0000]= -10, the resulting address is [w:[PLC1]D00090].

100＋(-10)=64(Hex)+FFF6(Hex)=1005A^*1(Hex)→005A(Hex)=90

• Script I/O: 32 bit unsigned, [t:0000]= 4294901840, the resulting address is [w:[PLC1]D00180].

100+4294901840=64(Hex)+FFFF0050(Hex)=FFFF00B4^*1(Hex)→00B4(Hex)=180

• Script I/O: 32 bit signed, [t:0000]= -65456, the resulting address is [w:[PLC1]D00180].

100＋(-65456)=64(Hex)+FFFF0050(Hex)=FFFF00B4^*1(Hex)→00B4(Hex)=180

*1 Bottom 16 bits are valid