Read/write function block data – Eaton Electrical PROFIBUS-DP EZ204-DP User Manual
Page 81
Read/write function block data
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MN05013001E
77
Table 27: Operand overview
Table 28: Index 00 – Parameters
Example:
Data 1 (Byte 5) = 0x07
Meaning:
The values appear in the Parameter menu. The counter is
used in the mode of the frequency meter. The counter setpoint
1 is not assigned to a constant and cannot therefore be written
to.
Index
(hex)
Operand
Read
Write
00
Parameters J Table 28
×
01
Control byte J Table 29
×
02
Actual value
S1
2
×
c
1
03
Counter setpoint 2
S2
2
×
c
1
1) The value can only be written if it is assigned to a constant in the
program.
2) A 16-bit value is transferred in data bytes Data 1 – Data 2. It should be
remembered that Data 1 is the low byte and Data 2 the high byte.
Meaning
Bit 7
6
5
4
3
2
1
0
Appears in the parameter menu
Yes/no
0/1
Counter mode
FB not used
0
0
Up/down counter (N)
0
1
High-speed up/down counter (H)
1
0
Frequency counter (F)
1
1
Use as constant and therefore can be written to
Counter setpoint S1
0/1
Unused bits
–
–
–
–