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GFK-0467K Chapter 4 Series 90-30/20/Micro Instructions Set 4-19
4
Valid Memory Types:
Parameter flow %I %Q %M %T %S %G %R %AI %AQ const none
address •
enable •
PV • • • • • • • • • • •
Q • •
• Valid reference or place where power may flow through the function.
Example:
In the following example, an OFDT timer is used to turn off an output (%Q0001) whenever an input
(%I0001) turns on. The output is turned on again 0.3 seconds after the input goes off.
| _____
|%I0001 | | %Q0001
|——| |———|OFDT |———————————————————————————————————————————————————————————(/)—
| |0.10s|
| | |
| | |
| CONST —|PV |
| +00003 |_____|
|
| %R00019