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Timer variable settings using PLC drivers
The user can set variable timers of user's PLC logics using settings of PLC drivers (FB:
PLC_DRV 230302). The LCD screen menu provides settings [UTM1] ~ [UTM24], and the user
can set those timer values through the LCD screen.
Figure 7.4-1 shows that a delay timer "TON1" has been set 500ms in the PLC logic, but the
user can set new value using the setting [UTM1] (e.g., the user can change 500ms to 200ms on
the LCD). Since an internal IED memory is able to access the [UTM1], the IED can operate
with new value of the [UTM1] when new one is set.
PLC editor
Constant value set
Fixed PLC = 500ms
PLC driver FB
Function ID: 230302
Element ID: 3200013001
Variable value set
Setting [UTM1] = 200 ms
= 5000ms
Figure 7.4-1 Time delay FB is adjusted by setting [UTM1] (example)
IED memory
PLC function
A timer value inputted
( 500 [ms] or 200 [ms] )
- 714 -
Timer FB
Output
Input
User PLC logic
6F2T0207 (0.01)
GRE200 (5,6)
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