Communication
8.4 Ethernet
S7-200 SMART
System Manual, V2.3, 07/2017, A5E03822230-AF
411
When you check the "IP address data is fixed to the values below and cannot be changed by
other means" checkbox in the system block dialog, the IP information that you enter for the
onboard Ethernet port is static. Static IP information must be downloaded to the CPU before
it is active in the CPU. If you want to change the IP information, this IP information can only
be changed in the system block dialog and once again downloaded to the CPU.
Note
If the "IP address data is fixed to the values below and cannot be changed by other means"
checkbox is checked, then the IP information cannot be set in the Communications dialog.
In order to use the SIP_ADDR instruction, the "IP address data is fixed t
o the values below
and cannot be changed by other means" checkbox must be unchecked.
After completing the IP information configuration, download the project to the CPU. All CPUs
and devices that have valid IP addresses are displayed in the Communications dialog.
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