Siemens Simatic RTU303xC Series Operating Instructions Manual page 216

Configuration (WBM)
4.23 Telecontrol
● Telecontrol password
Password for authentication of the RTU with TCSB. Is configured in TCSB for every
station.
Rules: 8 .. 29 characters from the ASCII character set 0x20.. 0x7E
● Allow HTTP/S access via TeleControl Basic
Enabling the option makes it possible to establish a connection from a PC to the Web
server of the RTU via HTTP/S and the TeleControl Basic tunnel. The connection depends
on the settings for HTTPS in "Security".
Transmission settings
A connection establishment for example via the mobile wireless network can take several
seconds. This depends on the particular network, on the current network load and on any
maintenance work of the network provider.
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Operating Instructions, 06/2019, C79000-G8976-C382-06
RTU303xC