How can I connect a WF470 card with a FieldPG M3??

Hello Everyone,

I have to make some changes in a S5 Rack (CPU 155) that contains a WF470 Card. I have to modify the program of WF470 and I want to add some new Bilds etc etc But the problem is that I dont have the correct cable to connect my FieldPG to the X7 Port of the card, and I havent the correct pinout to make the cable.

Anybody can help me? Anyone have the pinout to make the cable by myself and try to connect??

I have made a cable similar to the one used with Programmer PG7XX (COM1) but it doesnt work. 

Thanks in advance.

This Link may help

https://support.industry.siemens.com/tf/ww/en/posts/wf470-field-pg/71272/?page=0&pageSize=10

Regards / m.f.g

Hello,

I already saw that link. I think its the same problem than me, but I dont understand if I have to put two 330 ohm resistors in the pin 19, because in a M3 field PG, the Pin 19 is not Voltage 24vdc, it is current 20mA. 

Thanks.