Getting signal from Polar H10 heart rate monitor

What you appear to be looking for is computer device to PLC linking.
I have to ask what application you have in mind.
Hi Oneye14
We will be using this in our own equipment.
Are currently looking into if a USB Dongle with Bluetooth or ANT+ will do the job.
Use a Bluetooth sniffer like Bluefruit LE from Adafruit. It is programmed with a special firmware image and uses a nRF51822 chip. You can capture data exchanges between BLE devices and push the data into Wireshark via USB.
BLE sniffer
That should get you basic information on data packets that the Polar uses. Also read up on GATT as the data exchanges are defined in the BT standard.