Programmable Logic Controllers

Pico Controllers

PicoGFX Memory Functions

Boolean Operation for Pico GFX

Symbol in the function
block diagram

The devices allow the use of 32 BV01...BV32 function blocks for linking values in Boolean operations. Use the Boolean operation Association possible.

The Function Block and its Parameters

Description

Note

Function block inputs (DWord)

First setpoint

Associate a negative value, such as: -10 (dec) the central processing unit (CPU) forms the two's complement of the amount.
Example:
-10 (dec) = 10000000 00000000 00000000 00001010 (bin)
Two's complement = 11111111 11111111 11111111 11110110 (bin) = FFFFFFF6 (hex)
Bit 32 is retained at 1 as a sign bit.

Second setpoint

Function block output

Result of the operation

Contact (bit output)

Status 1 if the value of the QV function block output (i.e. the operation result) is zero

Coil

Operating mode

AND

AND operation

Example: I1 AND I2 = QV

	decimal	binary
I1	13 219	0000 0000 0000 0000 0011 0011 1010 0011
I2	57 193	0000 0000 0000 0000 1101 1111 0110 1001
QV	4 897	0000 0000 0000 0000 0001 0011 0010 0001

OR operation

Example: I1 OR I2 = QV

	decimal	binary
I1	13 219	0000 0000 0000 0000 0011 0011 1010 0011
I2	57 193	0000 0000 0000 0000 1101 1111 0110 1001
QV	65 515	0000 0000 0000 0000 1111 1111 1110 1011

XOR

Exclusive OR operation (eXclusive OR)

Example: I1 XOR I2 = QV

	decimal	binary
I1	13 219	0000 0000 0000 0000 0011 0011 1010 0011
I2	57 193	0000 0000 0000 0000 1101 1111 0110 1001
QV	60 618	0000 0000 0000 0000 1110 1100 1100 1010

NOT

Inverts the individual bits of the value at I1. The inverted value is shown as a signed decimal value.

Example: NOT I1 = QV

	decimal	binary
I1	13 219	0000 0000 0000 0000 0011 0011 1010 0011
QV	-13 220	1111 1111 1111 1111 1100 1100 0101 1100

Parameter set

Call enabled

Function block parameters can be viewed on the device.

Simulation

Possible

Memory Requirement