Function Blocks (FB)
104
S7-400 Instruction List
A5E00267845-01
Function Blocks (FB)
The following tables list the quantities, numbers and maximum sizes of the function blocks you can create for the various S7-400 CPUs.
Function Blocks
CPU 412-1
CPU 412-2
CPU 414
CPU 416
CPU 417
Quantity
256
256
1024
2048
6144
Permissible numbers
0 to 255
0 to 255
0 to 1023
0 to 2047
0 to 6143
Maximum size of a function block
(code required for execution)
64 Kbytes
64 Kbytes
64 Kbytes
64 Kbytes
64 Kbytes