Allen Bradley 1761-CBL-PM02 programming cable pinout

I had to program an Allen Bradley MicroLogix 1500 controller and I did not have the cable.

As I needed to do that right away and I had the connectors, after many searches and tries, I finally got it to work.

I used this:

- Belkin F5U409 USB to serial adapter

- home made cable

Surprisingly, I only needed 3 pins. The connection diagram is the following:

9 pin serial:

1 – none

2 -7 on 8 pin mini DIN

3 -4 on 8 pin mini DIN

4 – none

5 -2 on 8 pin mini DIN

6 – none

7 – none

8 – none

9 – none

You can find the 8 pin mini din pin numbers here. I’ve seen other pinouts on the internet, but did not work for me.

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