Siemens SENTRON PAC4220 - 7.2.5 Seal

Note
Switching
from standard port 502 to a user-de󹪝ned port makes it more di󹪟cult to scan for open
ports.
Example
PA
C4220 No. 1 with IP allowlist is located in subnet 1 (192.168.100.0/24).
PAC4220 No. 2 without IP allowlist is located in subnet 2 (192.168.98.0/24).
• Host 1 (IP: 192.168.100.87) in subnet 1 (192.168.100.0/24) has read and write access to PAC
No. 1 (192.168.100.10/24), because Host 1 is located in the same subnet as the PAC device.
• Host 1 (IP: 192.168.100.87) in subnet 1 (192.168.100.0/24) has read and write access to PAC
No. 2 (192.168.98.20/24) in subnet 2 (192.168.98.0/24), because no IP allowlist is activated
on PAC No.2.
• Host 2 (IP: 192.168.98.17) in subnet 2 (192.168.98.0/24) has read only access to PAC No. 1
(192.168.100.10/24), because the IP allowlist is activated on PAC No.1 and Host 2 is not
located in the same subnet as PAC No.1.
7.2.5 Seal
The device has a sealing eyelet for sealing the terminals.
The sealing of the connections prevents the manipulation of connections and thus also
possible manipulations of the measurement being carried out.
Parameterizing
7.2Protection against tampering
PAC4220
92 Equipment Manual, L1V30827278B-01