※6:Special register cannot use for other purposes . 
※7:Input coil and output relay/transistor number is octal number system, other is decimal system. 
※8:I/O which is not linked with outside facilities can be used for fast internal relay. 
 
1-2-2. Special function 
1.  High speed count 
 
2.High speed pulse output 
  ZG3-30T: Y0, Y1, max speed is 200kHz 
  ZG3-30R: not support 
 
3. External interruption