Instance 0-10V IN

The 0-10V IN instance acts as an analogue voltage input for the purpose of reading control signals from 0-10V and 1-10V controllers. This is one of 4 instances on this product, for details on other instances see. This instances type can be configured to be Pushbutton, Absolute Input (default), or Occupancy Sensor. The configurable instance type gives the user full control over how this instance is used. For examples on how to wire this instance, see How do I wire the zc-io-6?.

Instance Types

The instance type is configurable to the following types

Pushbutton

When the instance is in this type, the input is now sensed as a binary input. The input switching voltage is 1.4V at the terminal where below this voltage is considered shorted and above this voltage (up to the products rated input voltage) is considered open. The instances active state and supply are configurable using the instances settings.

The instance active state determines if the instance is considered pressed when it is shorted or open. The instance supply setting controls if this instance is in sourcing mode or sinking mode. In sourcing mode it enables a < 2mA current limited 10V supply so that other controllers may sink current for the instance to sense. In sinking mode the instance does not provide any supply to the line and instead will sense a sourced current from another controller on the line.

Absolute Input

When the instance is in this type it can act as a analogue voltage sense or a binary sense. When acting as a binary sense, the switching voltage is 1.4V at the terminal where below this voltage is considered shorted and above this voltage (up to the products rated input voltage) is considered open. When acting as a analogue voltage the instances input value is based on the ratio of the input voltage to the configured maximum voltage. The instances resolution and supply are configurable using the instances settings.

The instance supply setting controls if this instance is in sourcing mode or sinking mode. In sourcing mode it enables a < 2mA current limited 10V supply so that other controllers can sink current for the instance to sense. In sinking mode the instance does not provide any supply to the line and instead will sense a sourced current from another controller on the line.

The instance resolution setting controls if the instance acts as a binary sense or analogue voltage sense. For a resolution value of 1, the instance will act as a binary sense. For any other value of resolution, the instance will act as a analogue voltage sense. When acting as an analogue voltage sense the input value is the ratio of the sensed voltage multiplied by the resolution bit mask. The maximum voltage to scale against is configurable by 0.5V increments up to 24V (48). The voltage can be calculated using the following formula.

Where;

• voltage = sensed voltage
• input value = Instance Input Value
• resolution = Instance resolution
• maximum voltage = Maximum configured voltage

Occupancy Sensor

When the instance is in this type it acts as a binary sense to detect if motion has been detected. The input switching voltage is 1.4V at the terminal where below this voltage is considered shorted and above this voltage (up to the products rated input voltage) is considered open. The instances active state and supply are configurable using the instances settings.

The instance active state determines if the instance has detected motion when it is shorted or open. The instance supply setting controls if this instance is in sourcing mode or sinking mode. In sourcing mode it enables a < 2mA current limited 10V supply so that other controllers can sink the current for the instance to sense. In sinking mode the instance does not provide any supply to the line and instead will sense a sourced current from another controller on the line.