Timer, counter or process value (e.g. timers: KT=123.x. Counter:
KC=123). The value is displayed in the TD right–justified. If a value is
greater than the places provided for it (@T:4; @C:4;) for F and D min.
(@F:6;@D:8), the preceding character to the left is overwritten.
8.6
Preparing Timer, Counter and Process Values for Modification
Timer, counter
Timer, counter and process values are displayed at a fixed position
and process
(always 1st line of a message display) in the corresponding DB for timer
values
and counter or process values (see Section 8.4). The following options
are available on the TD 390:
You can display the message containing the timer, counter or process
values.
You can modify the displayed timer, counter or process values using
the TD 390 and these values are then overwritten in the DB.
TD 390
C79000–K8576–C292–01
Creating a PLC Program for the TD 390
Cont'd
8-9