| Type | Appearance | Connected ID
 System  | 
										External
 power supply  | 
										No. of unit
 numbers used  | 
										Current consumption
 (A)  | 
										Model | |||
|---|---|---|---|---|---|---|---|---|---|
| 5 V | 26 V | External | |||||||
| CS
 Special I/O Unit  | 
										
											![]()  | 
										V680
 Series  | 
										1 Head | - | 1 unit number | 0.26 | 0.13 * | - | CS1W-V680C11 | 
| 2 Heads | 24 VDC | 2 unit number | 0.32 | - | 0.36 | CS1W-V680C12 | |||
        