Siemens MICROMASTER 440 - Page 126

3 Functions Issue 10/06
MICROMASTER 440 Operating Instructions
126 6SE6400-5AW00-0BP0
Free function blocks (FFB)
P2800 =...
Enable FFBs
Parameter P2800 is used to activate all free function blocks (generally, P2800 is set to 1).
Possible settings:
0 Inhibited
1 Enabled
P2801 =...
Activate FFBs
Parameter P2801 is used to individually enable (activate) the free function blocks P2801[0]
to P2801[16] (P2801[x] > 0).
Further, parameters P2801 and P2802 are used to define the chronological sequence of
all of the function blocks. The table below indicates that the priority increases from left to
right and from bottom to top.
Possible settings:
0 Inactive
1 Level 1
2 Level 2
0 Level 3
Example:
P2801[3] = 2, P2801[4] = 2, P2802[3] = 3, P2802[4] = 2
FFBs are calculated in the following sequence:
P2802[3], P2801[3] , P2801[4], P2802[4]
The active function blocks are calculated every 132 ms.
P2802 =...
Activate FFBs
Parameter P2802 is used to individually enable (activate) the free function blocks P2802[0]
to P2802[13] (P2802[x] > 0).
Possible settings:
0 Inactive
1 Level 1
2 Level 2
1 Level 3
3
2
1
0
P2802 [13] CMP 2 P2802 [12] CMP 1
P2802 [11] DIV 2 P2802 [10] DIV 1 P2802 [9] MUL 2 P2802 [8] MUL 1 P2802 [7] SUB 2 P2802 [6] SUB 1
P2802 [5] ADD 2 P2802 [4] ADD 1
P2802 [3] Timer 4 P2802 [2] Timer 3 P2802 [1] Timer 2 P2802 [0] Timer 1
P2801 [16] RS-FF 3 P2801 [15] RS-FF 2 P2801 [14] RS-FF 1 P2801 [13] D-FF 2 P2801 [12] D-FF 1 P2801 [11] NOT 3 P2801 [10] NOT 2 P2801 [9] NOT 1
P2801 [8] XOR 3 P2801 [7] XOR 2 P2801 [6] XOR 1
P2801 [5] OR 3 P2801 [4] OR 2 P2801 [3] OR 1
P2801 [2] AND 3 P2801 [1] AND 2 P2801 [0] AND 1
Level
Level
Level
Inactive
low
high
Priority 1
Priority 2
low
0
0.0