The Omron WT30 wireless serial communication system frequently finds application on moving equipment as an alternative to slip rings or motion control cables. It consists of one master and multiple slave I/O stations expandable to 64 slaves and over 1,000 I/O. The wireless serial master collects on/off data and provides an RS-232C (CompoWay/F) interface to a personal computer or PLC. Users typically program the devices using pretested function blocks in CX-One software on Omron PLCs, though the devices work with other controller brands as well. The I/O Slave terminals are available with 16 inputs or a combination of eight inputs and eight outputs.