ETHERLINE
®
ACCESS NF04T | Version 1 | 04/16/20
38
10.1
Application with step 7
Step 7 offers the possibility to access a CPU and to use an IP address other than that set in the project in the
process.
In order to be able to redirect the responses from the CPU back to the engineering station in the WAN via the
ETHERLINE
®
ACCESS NF04T, either the SNAT function must be activated in ETHERLINE
®
ACCESS NF04T under
"Basic NAT" or the ETHERLINE
®
ACCESS NF04T must be entered as the router for the CPU in the project.
In order to be able to reach a CPU via an alternative
IP address, this can be entered in the menu
“Destination system” in the dialog “Access address”.
This address remains active until it is deleted in the
same dialog through “Reset”.
This solution can only be sensibly used in the Basic NAT operating mode. In the case of NAPT with port forwarding,
only one CPU can be reached, as the Simatic Manager always accesses the CPU with the non-adjustable port 102.
The search via the Siemens function “reachable participants” doesn’t function through the ETHERLINE
®
ACCESS
NF04T firewall.
PROFINET RT frames are not routed through by ETHERLINE
®
ACCESS NF04T!
