Analog Output from 224XP help

Dear all
Can anybody help me for S7 200 Analog Output
My Problem is , In Catlog the type of inbuilt Analog output (224XP Cpu)is +/-10V or 0 - 20 mA.I require -10V to +10V .As i force 32000 from Microwin 4.0 to analog output there is 10 V output fine,but as i force -32000 thre is 0V output at the output.Please point where i am wrong?
Nehe

HI there

AO is designed to give -10v to +10v from -32000 to + 32000,for voltage.

AO is designed to give 0 to 20mA from 0 to +32000 counts, for current.

You can program to get the desired voltage output range.
Go through the following link, it may help you out

http://support.automation.siemens.com/WW/view/en/22149157

Hii

Hii Thanks for reply
it is true -32000 to 32000 is -10V to + 10V but i think it is only works for EM modules .Is it possible -32000 is -10V for 224XP inbuilt analog output?
Nehe

Inbuilt analog output of CPU is designed to give just 0 to +10V from 0 to 32000 counts.
-32000 won't give you -10v from CPU AO
If you want 0-(-10v)then go for EM modules or DC/DC converter.

OK give a try by changing the polarity of your wires from analog output.

You're going to need an analog module for -10 to +10. The built in is only 0-10V.