Typical Runtimes Of Fc 56 (Cycle Load Of As In Msec) - Siemens MOBY FC 56 Technical Description

Block Specifications
2.1 Technical Data
Block number:
Block name:
Symbolic name:
Family:
Work memory requirements:
Local data:
Version:
Blocks called:
Assignment of data blocks:
Flags used:
Counters used:
Registers used:
Call:
Table 2-1
S7-CPU
315-2 DP
318-2 DP
416-2 DP
n = Amount in bytes of processed user data per read or write command
When a command processes more than 214 bytes of MDS data, n = 214 must
always be used in the table.
Remarks:
FC 56
J31069-D0155-U001-A0-7618
FC 56
FC 56
"MOBY FH-MT"
–
8932 bytes
146 bytes
1.0
SFC 58, SFC 59, SFC 20, SFC 21, SFC 1
MOBY Param = 300 bytes per channel
(defined with UDT 10)
None
None
AR1, AR2
Cyclic

Typical runtimes of FC 56 (cycle load of AS in msec)

Idle Pass ASM Centrally in S7-300
Read MDS
1.9 3.7 + n * 0.023
0.13 1 + n * 0.01
0.1 –
The times of the ASM for data communications with the
data memories are described in the MOBY configuration manual.
ASM Distributed on
Write MDS Read MDS
3.6 + n * 0.022 3.4
1.3 + n * 0.007 0.4
– 0.35
2
PROFIBUS
Write MDS
3.6
0.45
0.38
2-1