Siemens SIMATIC TIM 3V-IE DNP3 - Page 189

The SINAUT Configuration Tool
6.6 TD7onTIM
TIM DNP3
System Manual, 12/2015, C79000-G8976-C253-04
189
Image 6-15 TIM with selected system object "WatchDog" and the corresponding parameters
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:
Output bit
M
emory area:
The following options are available:
•
DB: Data block
•
Memory bit: Memory bit area
•
Output: Process output image (PIQ)
DB No.:
Specifies the DB number in the CPU if the data block memory area (DB) was
selected
Address
[Byte.Bit]:
Input fields for
the byte and bit number in the selected memory area