LDmicro0.1 CYCLE=10000 CRYSTAL=4000000 BAUD=2400 IO LIST END PROGRAM RUNG COMMENT Very simple, just print 'Hello, world' over serial, over and over. END RUNG CONTACTS Rosc 0 TON Tosc 1000000 COIL Rosc 1 0 0 END RUNG COMMENT For no particular reason, keep a counter that increments with each\r\nline that we print. END RUNG CONTACTS Rosc 0 OSR ADD cnt cnt 1 END RUNG CONTACTS Rosc 0 FORMATTED_STRING cnt 21 72 101 108 108 111 44 32 119 111 114 108 100 58 32 92 45 53 92 114 92 110 END