Opcom v1.39 can read security codes and program keys in one device. But, unluckily, it stops production. Opcom v1.59 can program keys also, but you need use Carprog v8.21 or CarProg 10.05 to read pin /security codes from engine ECU. The security code has four digits, and it only contain numbers, from 0 to 9. Online Library Opcom Manual yourself. Opcom v1.39 can read security codes and program keys in one device. But, unluckily, it stops production. Opcom v1.59 can program keys also, but you need use Carprog v8.21 or CarProg 10.05 to read pin /security codes from engine ECU. OP-COM Guide: How to use Opcom to do Key Programming.

Before using OP COM China Clone to make key for your Astra, 4 things you need to know in advance.
1. NEW remote central locking board (PCB) to the car
2. A key to the car
3. The Security Pass for the car
4. Opcom OP-Com 2012V with Firmware V1.59
OPCOM
How to install Opcom firmware 1.59 (the following video link is offered for your reference)
http://opcom-china-clone.blogspot.com/2015/09/op-com-opcom-2010v-firmware-159.html
And then the following part is the operation guide:
Step1. Insert your NEW remote central locking board into your key;
Step2. Put the key into the ignition and turn but Do Not crank the engine;

Opcom Key Coding Tool

Step3. Connect OPCOM with your car and your computer (that has already finished software installation);
Step4. Open OPCOM software and click on “DIAGNOSTICS” (mark red at picture below);
OPCOM-1
Step5. A vehicle identification menu will pop out in the next page. Select your car year;
Step6. And then select your car model;
Step7. Select “BODY” from the menu.
OPCOM-2
Step8. Select “ANTI THEFT WARNING”;
Step9. Press “PROGRAMMING” button (locate on the right hand side of the screen);
Step10. Select “SECURITY CODE” (this should be the only one available at the time).
Step11. Enter your “SECURITY CODE” and click OK.
Step12. Select “PROGRAMMING REMOTE CAR KEY”;
Step13. Follow the on screen instructions.
Step14. Click “CLOSE”.
Step15. Open and close door, try locking your door and then dead lock it. Once you have done this, unlock and all should be done.

Opcom Key Coding Tutorial