Can the HI 3000 units communicate with an A/B SLC PLC?

Does the Hardy 3000 series units communicate with an Allen Bradley SLC PLC?

Yes, the HI 3010, HI 3030 and HI 3300 can communicate to the SLC PLC.
They can send data to the PLC via Analog output and has the ability to have bi-directional communication through DeviceNet and EIP.

EIP is a new addition to the communication between the SLC and the Hardy 3000 series units.  Hardy uses an industry proven HMS Anybus Ethernet communications board to work internally in the units.

Attached is an application note explaining how this communications is done. 
Also attached is an application note explaining how to connect to the MicroLogix 1100 processor.