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4-98 Series 90-30/20/Micro Programmable Controllers Reference Manual – September 1998 GFK-0467K
4
Valid Memory Types:
Parameter flow %I %Q %M %T %S %G %R %AI %AQ const none
enable •
IN • • • • • • • • •
ok • •
Q • • • • • • • •
Note: For REAL data, the only valid types are %R, %AI, and %AQ.
• Valid reference or place where power may flow through the function.
Example:
In the following example, whenever input %I0002 is set, the BCD-4 value in PARTS is converted
to a signed integer and passed to the ADD function, where it is added to the signed integer value
represented by the reference RUNNING. The sum is output by the ADD function to the reference
TOTAL.
| _____ _____
|%I0002 | | | |
|——| |———|BCD4_|————————————————| ADD_|—
| | | | |
| | TO_ | | INT |
| | | | |
| | INT | | |
| PARTS -|IN Q|- %R0001 %R0001 |I1 Q|- TOTAL
| |_____| | |
| RUNNING-|I2 |
| | |
—————