Siemens SIMATIC TeleControl DNP3 Configuration Manual page 63

CP diagnostics
With the parameter group, you have the option of reading out advanced diagnostics data
from the CP using PLC tags.
● Enable advanced CP diagnostics
Enable the option to be able to use advanced CP diagnostics.
If the option is enabled, at least the "Diagnostics trigger tag" must be configured.
The following PLC tags for the individual items of diagnostics data can be enabled
selectively, depending on the functions supported by the CP.
● Diagnostics trigger tag
If the PLC tag (BOOL) from the user program of the CPU is set to 1, the CP updates the
values of the PLC tags that can then be configured for the advanced diagnostics.
After writing the current values to the following PLC tags, the CP sets the "Diagnostics
trigger tag" to 0, signaling to the CPU that the updated values can be read from the PLC
tags.
Note
Fast setting of the diagnostics trigger tag
Triggers must not be set faster than at a minimum interval of 500 milliseconds.
● Frame memory overflow warning
PLC tag (data type Byte) for the send buffer overflow pre-warning. Bit 0 is set to 1 when
80% of the fill level of the send buffer is reached.
● Frame memory occupation
PLC tag (data type DWord) for the occupation of the send buffer. The number of saved
frames is specified.
● Current IP address
PLC tag (data type String) for the current IP address of the CP.
● VPN IPsec status
The PLC tag (BOOL) indicates whether a VPN IPsec tunnel is established:
– 0 = No tunnel established
– 1 = Tunnel established
● Connection to SINEMA Remote Connect
The PLC tag (BOOL) indicates whether there is a connection to the SINEMA RC server:
– 0 = No connection established
– 1 = Connection established
Configuration - DNP3
Configuration Manual, 11/2018, C79000-G8976-C508-01
Configuration
3.12 Communication with the CPU
63