The BECKHOFF CX1500-M310 is a PROFIBUS master interface module with ISA address D4000, featuring 1 fieldbus channel and a 9-pin D-SUB female connector. It supports PROFIBUS DP standard and PROFIBUS DP-V1 (Class 1+2) with acyclic services and alarms, offering transmission rates from 9.6 KBaud to 12 MBaud.