Siemens SIMATIC TeleControl DNP3 Configuration Manual page 140

Diagnostics
4.5 SINAUT special diagnostics
the byte size of a memory block. The parameter assignment is performed in the network
configuration in NetPro in the Properties dialog, Options tab, Global frame memory field.
● Free (blocks):
Free area of the frame buffer. The value indicates the number of free memory blocks.
● Free (%):
Free area of the frame buffer as a percentage
● Image blocks:
Number of blocks occupied in the frame memory of the TIM for data frames transmitted
using the image memory principle.
"Buffers" box
The Buffers box lists the frame buffers for various communication partners with the following
information:
● From:
Subscriber number of the source subscriber
● To:
Subscriber number of the destination subscriber
● No. of frames:
Total number of stored frames for the relevant source and destination subscriber
If a frame buffer is selected on the left with the mouse in the Buffers box, the following
detailed information is displayed in the Buffer info list:
● From:
Subscriber number of the source subscriber
● To:
Subscriber number of the destination subscriber
● Type:
– = 2: Buffer for organizational messages, hand-shake messages or messages
– = 4: Buffer for messages to a remote subscriber (CPU or ST7cc).
– = 8: Buffer for messages to a local subscriber (CPU or ST7cc).
● No. of frames:
Total number of stored frames for the source and destination subscriber named above
● No. of uncond. frames:
Number of stored frames to be sent unconditionally and spontaneously (only relevant in
dial-up networks)
● No of prio. frames:
Number of stored frames to be sent with high priority.
● Status:
The status is a hexadecimal value that codes the buffer information following it into
binary.
● Forced image mode:
1 = forced image mode
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transmitted from one TIM to another TIM.
Configuration Manual, 11/2018, C79000-G8976-C508-01
Configuration - DNP3