Panasonic FP Series User Manual

Selection instructions
254
Part II IEC Instructions
MAX
Maximum value
To add an enable input and enable output to the instruction, select [With EN/ENO] from the
"Instructions" pane (LD, FBD or IL editor). To reuse an instruction select "Recently used" from the
context menu or press <Ctrl>+<Shift>+<v> in the programming window.
PLC types
Availability of MAX (see page 1328)
The number of input contacts lies in the range of 2 to 28.
Data type I/O Function
all except
STRING
1st input value 1
all except
STRING
2nd input value 2
all except
STRING
output as input result, whichever input variable's value is greater
In this example the input variables (value_1 and value_2) have been declared. Instead, you may
enter a constant directly at the input contact of a function.
Description
MAX determines the input variable with the highest value.
Data types
Example
In this example, the same POU header is used for all programming languages. For an example
using IL (instruction list), please refer to the online help.
POU header
All input and output variables used for programming this function have been declared in the POU
header.
Body
Value_1 and value_2 are compared with each other. The maximum value of all input variables is
written in maximum_value.
LD
ST
When programming with structured text, enter the following:
maximum_value:=MAX(value_1, value_2);

Panasonic FP Series Specifications

General

Mounting	DIN rail
Type	PLC
Communication Interface	RS-232, RS-485, Ethernet (depending on model)
Input Voltage	100-240V AC or 24V DC (depending on model)
Output Type	Relay, Transistor
I/O Points	Varies by model
Operating Temperature	0°C to 55°C
Dimensions	Varies by model
Weight	Varies by model