Read/write function block data
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MN05013001E
141
Table 75: Operand overview
Table 76: Index 0 – Bit IO
Index
(hex)
Operand
Read
Write
00
Bit IO, Table 76
×
01
Mode/Parameter
–
–
02
Comparison value
I1
×
c
1
03
Comparison value
I2
×
c
1
1) The value can only be written if it is assigned to a constant in
the program.
J
The data for index 2 and 3 is transferred as a 32-bit value in
Intel format (Data 1 – Low Byte to Data 4 – High Byte).
Bit
7 6 5 4 3
2
1
FB output Data 3
– – – – GT
1
EQ
2
LT
3
1) greater than: Status 1 if the value at I1 is greater than value at I2
(I1 > I2)
2) equal: Status 1 if the value at I1 is equal to value at I2 (I1 = I2)
3) less than: Status 1 if the value at I1 is less than value at I2
(I1 < I2)