WAGO 750 Series User Manual

Step-by-Step Guide to your own Linux Application • 121
Debugging of User Space Programs
WAGO-I/O-SYSTEM 750
Linux Fieldbus Coupler
5.12.4 Creating an Example Application for Debugging
The section 5.6, “Create your own user space applications” describes how to
create an example program for the Linux fieldbus controller. This program
example also illustrates debugging. Add the following calls to the source
codes:
> cd ~/uclinux-dist/user/newProg
> emacs newProg.c
Enter the following code into the emacs and save it via CTRL-X, CTRL-S:
A subfunction with a counter variable is added to the code in order to be able
to test the functions of the debugger better.
The makefile of section 5.6 is not modified.
Recreate the program. Enter the following calls into the console:
> cd ~/uclinux-dist
> make user
Copy the program to the Linux fieldbus controller, as described in section 5.7.
void printfunc(void)
{
int i = 3;
printf("WAGO world\n");
printf("%d..", i);
i--;
printf("%d..", i);
i--;
printf("%d..\n", i);
return;
}
int main(int argc, char **argv)
{
printf("Hallo\n");
printfunc();
return 0;
}

WAGO 750 Series Specifications

General

Protection Class	IP20
Bus Couplers	PROFIBUS, CANopen, Ethernet
Modules	Digital Input, Digital Output, Analog Input, Analog Output
Mounting	DIN rail mounting
Voltage Supply	24 V DC (typical)
Communication Protocol	Depends on the bus coupler (e.g., PROFIBUS, CANopen, DeviceNet, Ethernet)
Digital Input Channels	Varies by module (e.g., 8, 16 channels)
Digital Output Channels	Varies by module (e.g., 8, 16 channels)
Analog Input Channels	Varies by module (e.g., 2, 4, 8 channels)
Analog Output Channels	1, 2, 4 channels (depending on module)
Width	12 mm, 24 mm (typical module widths)
Number of Channels	Varies by module type
Current Consumption per Channel	Varies by module type