After you locate the Relays Task under Data Neighborhood in Max, you need to right-click the DAQ device under Devices and Interfaces and choose Show Pinout. The pins on the DAQ device should match the CB-68 directly.
Your trying to write a U8 to the DAQ device. The Relays task needs to be mapped to an 8-bit port or you'll get an error.
Michael Munroe, CLD, CTD, MCP Automate 1M+ VI Search, Sort and Edit operations with Property Inspector 5.0, now with a new Interactive Window Manager! Now supports full project automation using one-click custom macros or CLI.