Datasheet

147
Programmable
Controllers
In addition to ladder programming, function block logic can be
written in ST, which conforms to IEC61131-3. With ST, arithmetic
processing is also possible, including processing of
absolute values, square roots, logarithms, and trigonometric
functions (SIN, COS, and TAN). Processing difficult to achieve in
ladder programs becomes easy to write.
The Structured Text (ST) Language
Enables Trigonometric Functions and
Other Arithmetic Processes
Recovery Possible by Uploading
Function Blocks from Working PLC
Programs with function blocks can be uploaded from CPU Units,
just like normal programs, without the need for additional memory
such as a Memory Card.
Programs with
function blocks can
be uploaded from
working PLCs.
FB
CX-Programmer Ver.5.0
CS/CJ-series
Unit Ver. 3.0
OMRON FB Library
The OMRON FB library provides function blocks for setting SPs,
reading PVs, and reading/writing RUN/STOP status and other
Temperature Controller parameters. The programmer simply
pastes function blocks from the OMRON FB Library into the ladder
program. The desired functions can be utilized simply by inputting
the Temperature Controller unit number and address.
What Is the OMRON FB Library?
The OMRON FB Library is a set of functional objects for ladder
programming for OMRON CS/CJ-series PLCs. By incorporating
the OMRON function blocks provided by OMRON into a ladder
program, the program interface for different control devices is
easily completed. This reduces the number of working hours
required for program development and, at the same time,
improves product quality through standardization.
DeviceNet
Master Unit
Example: Function Block for Writing
Temperature Controller SPs
Note: Use CS/CJ-series CPU Unit Ver. 3.0 or later.
DeviceNet
Temperature
Controller
SYSMAC CJ-series PLC
Normal
end
Temperature
Controller unit number
Address
Simply paste a function block
from the OMRON FB Library
into the ladder program and
enter
the unit number, set point,
and other parameters.
Y201-EN2-03.book Seite 147 Donnerstag, 30. März 2006 1:52 13