Siemens SIMATIC TIM 3V-IE DNP3 System Manual page 189

Image 6-15
WatchDog
The "WatchDog" system object can be included as an option. It indicates to the CPU
program whether the communication between CPU and local TIM is still working; in other
words, whether TD7onTIM is still reading from and writing to the memory areas of the CPU.
As long as communication is functioning correctly, a selectable output bit changes state at 5
second intervals. The constant status change can be evaluated by the CPU user program.
Parameters in the "Output Bit" box:
Name:
Memory area: The following options are available:
DB No.:
Address
[Byte.Bit]:
TIM DNP3
System Manual, 12/2015, C79000-G8976-C253-04
TIM with selected system object "WatchDog" and the corresponding parameters
Output bit
• DB: Data block
• Memory bit: Memory bit area
• Output: Process output image (PIQ)
Specifies the DB number in the CPU if the data block memory area (DB) was
selected
Input fields for the byte and bit number in the selected memory area
The SINAUT Configuration Tool
6.6 TD7onTIM
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