Communication via Function Blocks
6.6 Technical Specifications of the Function Blocks
Point-to-point connection CP 440 Installation and Parameter Assignment
108 Manual, 09/2007, A5E00057742-03
6.6 Technical Specifications of the Function Blocks
Introduction
The following lists the technical data for the memory requirements, runtimes, minimum
number of the CPU cycles and the system functions used.
Memory requirements
The table below contains the memory requirements of the function blocks of the CP 440.
Table 6-8 Memory Requirements of the Function Blocks (in Bytes)
Block Name Version Load memory Working memory Local data Instance DB
FB 9 RECV_440 1.0 1228 990 26 36
FB 10 SEND_440 1.0 1068 846 26 36
FB 11 RES_RECV 1.0 900 710 38 26
Run Times
The table below contains the run times of the function blocks of the CP 440.
Table 6-9 Run Times of the Function Blocks in ms
Block Name Version Function* CPU 414
6ES7414-2XG03-0AB0
CPU 416
6ES7416-2XK02-
0AB0
CPU 417
6ES7417-4XL00-
0AB0
FB 9 RECV_440 1.0 Idling
Receiving*
24
390
20
330
24
390
FB 10 SEND_440 1.0 Idling
Sending*
26
490
22
410
26
490
FB 11 RES_RECV 1.0 Idling
Reset
20
350
17
290
20
350
* The run times are based on a data block size of 30 bytes.
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