Read/write function block data
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MN05013001E
167
Table 102: Operand overview
Table 103: Index 0 – Bit IO
Index
(hex)
Operand
Read
Write
00
Bit IO,
J
Table 103
×
01
Mode/Parameter
–
–
02
Upper threshold value
I1
×
c
1
03
Actual value of operating
hours counter
QV
×
1) The value can only be written if it is assigned to a constant in
the program.
Bit 7 6 5 4 3
2
1
0
FB input Data 1
– – – – –
–
RE
1
EN
2
FB output Data 3
– – – – –
–
–
Q1
3
1) Reset coil: Status 1 resets the counter actual value to zero.
2) Enable coil
3) Status 1 if the setpoint was reached (greater than/equal to)
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).