31.1 Controlling External I/O
31.2 Settings Guide
31.3 Controlling External I/O with the Display Unit's Internal DIO
31.4 Using FLEX NETWORK External I/O
31.5 Controlling External I/O with LT
31.6 Controlling I/O in LT3000 Series and EX Modules
31.7 Controlling External I/O with CANopen
    31.7.1 Setting Up CANopen
    31.7.2 Connecting Third-party Slaves - CANopen
    31.7.3 Mapping I/O - CANopen
    31.7.4 Using I/O Driver Instructions - CANopen
    31.7.5 HTB Standard Input/Output
    31.7.6 Expanding I/O Using EX Module
    31.7.7 I/O Driver Settings Guide - CANopen
    31.7.8 Error Information - CANopen
    31.7.9 Restrictions
       31.7.9.1 Restrictions for HTB
    31.7.10 Communication Setting HTB Objects (1000h to 1FFFh)
    31.7.11 Manufacturer HTB Object (2000h to 5FFFh)
    31.7.12 Standard Device HTB Object (6000h to 9FFFh)
31.8 Controlling External I/O in the LT3000 Series and AnyWire Master Unit