FB's Thumblewheel Switch Module 8 sets 4 digits (total 32 digits) thumbwheel switch (or 128 points independent switch) multiplex input module30 pins header connectorFBs-32DGI0,00$PrecioCantidad*AgregarVer pedidoFB's PLC CatalogLink Here Download Main unit ManualDownload Main unit Manual - Hardware and Instruction. Click Here Download FREE Programming SoftwareDownload WinProladder. Click Here