30.1 Controlling External I/O
30.2 Settings Guide
30.3 Controlling External I/O with the Display Unit's Internal DIO
30.4 Using FLEX NETWORK External I/O
    30.4.1 Procedure - Using FLEX NETWORK External I/O
    30.4.2 I/O Terminal Operations
    30.4.3 I/O Driver Settings Guide - FLEX NETWORK
    30.4.4 Error Information - FLEX NETWORK
       30.4.4.1 Error Code - FLEX NETWORK
30.5 Controlling External I/O with LT
30.6 Controlling I/O in LT and EX Modules
30.7 Controlling External I/O with CANopen