A PPENDIX
Digital Input/Output
A digital output opens or closes the circuit between two terminals depending on the
binary state of the output. A digital input is a switch and a voltage sending device.
Depending on the switch's open/closed status, Unimax+ detects a voltage or no
voltage condition, which in turn generates a logical 0 or 1, ON or OFF, alarm or normal
or similarly defined state.
H/W Specifications
Digital output (max 3.3VDC)
Digital output (max 3.3VDC)
[Table 28: Digital I/O PIN Number]
Electrical Specifications
Digital Outputs: Minimum 2.4 V Typical 3.3 V 16㎃
Digital Inputs: From 0 to 5.0 V ±5㎂
Diagram
[Figure 48: Output Circuit]
Please note that external control circuit should support “Open Collector”.