View single post by slychiu

Posted: Saturday Mar 23rd, 2019 07:17 am

Joined:	Saturday Apr 29th, 2006
Location:	Singapore
Posts:	5498
Status:	Offline

The KNX/Logic has a built-in KNX Interface.The KNX/Logic can be used to connect other Cytech modules in a system, eg UCMs, IRIO, HIO and link them by mapping to Flags, Counters and Sensors. For example, an IRIO with ISM03 Infrared submodule is used to control up to 4 airconditioners or AV systems using IR signals. Setting the flag turns on the appliance and clearing the flag turns it off. These appliances can be mapped to Flags or Counters in KNX/Logic. These appliances can be controlled by KNX and other systems by mapping the required group address to the same flags or Counters.
KNX to Flag

On/off states can be mapped to Flags. Setting the Flag controls the appliance according to the Flag state, ie 0 for Off, 1 for On. In IRIO, another flag can be assigned to the feedback status. This flag can be mapped to the KNX group address (or other system) to give feedback.

KNX to Counters
Counters are used when the state is not binary or On/off. An 8-bit counter has 256 states from 0 to 255 which can represent dimming levels for lights. Mapping to Counters allows dimming or analog levels to be passed from one system to another. A new value sent to a Counter will also trigger a Counter Response which can be used to apply Logic conditions which could set the values of other counters and flags.

KNX EIS5 (2-byte floating point) objects can be mapped to KNX/Logic Sensor Registers, which activate Sensor Responses based on the value of the 2-byte object.
KNX to Sensors

Time Programs
Time Programs can be used to schedule commands or scenes for controlling devices. Logic If/Then conditions can be used in Responses for conditional programming.
Cytech Mobile Apps
The Comfort apps can be used to control and monitor the KNX/Logic by programming the Control Menu.
Modules
KNX/Logic can support the following modules on the Comfort Rs485 Bus;

8 UCM Interfaces (KNX, Cbus, GSM, Universal. Modbus etc)
15 IRIOs Intelligent Remote programmable I/O)
15 HIOs (Hotel I/O Room Logic controller)
15 MSM01 MultiSensor Modules (with temperature, Humidity, Water leakage sensing)
KT05 Tousccreen tablet

Note that KNX/Logic cannot be used together with the Comfort Alarm/Automation system or UCM/Logic Controller in the same network as they all work as controllers on the Cytech RS485 Bus.

Responses
Responses are programs consisting of Actions or commands which perform customised tasks; eg Control Outputs, send Infrared signals (Outputs require IRIO), control Flags and Counters, start and stop timers for delays do complex Conditional Logic which depends on Time, date, Sunset/Sunrise, Counters, Flags, timers, Inputs, and Outputs.

Last edited on Saturday Mar 23rd, 2019 07:21 am by slychiu

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