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Configuration (WBM)
4.5 Permissible file size for certificates and keys
RTU303xC
100
Operating Instructions, 06/2019, C79000-G8976-C382-06
Parameter
String length Permitted characters / format
Min.
Max.
SINEMA RC
Password
8
63
All the characters listed above
Tag tables
Table names
1
20
All the characters listed above
Texts in the tag tables
0
80
All the characters listed above
4.5
Permissible file size for certificates and keys
When configuring certificate-based services, only certificate and key files with the following
maximum size may be imported:
Service
Files
Maximum size
FTP
CA certificate
4095 bytes
CA certificate
4095 bytes
HTTPS
Self-signed certificate
Key
4095 bytes
2047 bytes
VPN
CA certificate
Self-signed certificate
Key
4095 bytes
4095 bytes
2047 bytes
DynDNS
CA certificate
4095 bytes
4.6
Establishing the connection between RTU and configuration PC
4.6.1
Address data of the RTU
Address data of the RTU
To connect to the WBM of the RTU from the configuration PC, you require the address data
of the RTU.
In the factory the following address data is set as default for the RTU:
Address data
Subnet mask
Default host name of the RTU
simatic.rtu
Default IP address of the RTU
192.168.0.3
Default subnet mask
255.255.255.0