EMBEDDED
PLC BL2500 User’s Manual
Running Sample Applications
OEM Technology Solutions
Page 20
Follow the same procedure to run the b25rota application. This application will turn ON the BL2500 on-
board LEDs (DS3 and DS4) in sequence.
3.4 CREATING A NEW PLC APPLICATION
The following Section describes how to use the ISaGRAF Workbench to create simple PLC applications
using the 5 IEC 611131-3 PLC programming languages (FBD, LD, ST, IL and SFC) and Flow Chart that
later you will download to the BL2500 Target PLC. The Target PLC must be connected to physical I/Os. It
also assumes that the Target is connected to the PC either via Ethernet or serial port.
To create (or
modify) PLC applications the ISaGRAF Workbench must be licensed
.
The PLC application that is written using 6 different languages, implements a simple Boolean operation
(XOR) between digital input IN00 and IN01 (SW1 and SW2 Boolean variables respectively). The DS3
LED (LED1 Boolean output variable) is used as the output.
3.4.1 Using Function Blocks Diagrams
1. Open the ISaGRAF Project Management by double-clicking on the ISaGRAF Projects icon on your
Desktop or selecting
Start
menu
→
Programs
→
ISaGRAF 3.5
→
Projects
. On the
Projects
Management
window, select
File
menu
→
New
.
2. On
the
Create new project
window, enter the
name of the project (for example b25test1) and
press
OK
button. The name of project should no
exceed 8 characters. The b25test1 project is
then listed in the
Projects Management
window.
3. Select
Edit
menu
→
Set comment text
. Enter a brief description of this project and press
OK
button.
This description will be displayed next to the project name in the
Projects Management
window.
4. Double-click
on
b25test1
project. An empty
B25TEST1 – Programs
window is displayed.
5. Select
File
menu
→
New
. On the
New program
window enter the name of the program (for example,
FBtest1); a brief comment; select the Language to
FBD
; select
Begin
Style and press
OK
button. The
FBtest1 program is displayed in the
B25TEST1 –
Programs
window.
6. On
the
B25TEST1 – Programs
window select
File
menu
→
Dictionary
to open the
Dictionary
window.