Siemens S7-1200 Manual page 43

6 LCCF_EnetScanner block
SIMATIC S7-1200
For the S7-1200 controller the technical data are listed below
Table 6-9: Memory consumption S7-1200
LCCF_EnetScanner
instance DB
The Configuration of the EtherNet/IP IO system also requires some memory. When
configured with the description and the data organized as array in the same data
block, the required memory is listed below.
Table 6-10: Memory consumption for the EtherNet/IP IO system
Adapters
NOTE With the LCCF_EnetScanner block the S7-1200 controller can control up to 8
EtherNet/IP adapters. This is a compromise between many factors, such as
update rates, CPU load and memory consumption.
The S7-1200 controllers allow for more than 8 OUC resources, which can be
used in specific applications.
Risk of overloading the controller
NOTICE
Configuring too many EtherNet/IP adapters can overload the controller and
cause the loss of control over the process, as the time required to retrieve sensor
signals may be larger than allowed for safe process control.
Evaluate the requirements of the process and select an appropriate, if in doubt
the larger, CPU model.
EtherNet/IP Scanner
Entry-ID: 109782314, V1.1.0,
Block
1
2
3
04/2021
Load Memory
453.723Bytes
23.893 Bytes
Load Memory
4.330 Bytes
5.511 Bytes
6.694 Bytes
Work Memory
22.973 Bytes
13.220 Bytes
Work Memory
1.284 Bytes
2.468 Bytes
3.644 Bytes
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