iSMA-B-MINI/MIX BACnet User Manual
www.ismacontrolli.com
DMP261en | 1st Issue rev. 8 | 05/2022
page 61 of 114
Figure 41. The cooling mode algorithm
8.6.3 MODE TIME Object (Analog Value: 26-29)
This object contains the time value for TIME RELAY modes. The time unit depends on the
selected mode: milliseconds or seconds.
8.6.4 COMMAND Object (Binary Value: 12-15)
The module includes special COMMAND objects. The command objects are used to
remotely execute the action (simulate light switch/PIR). The action is executed by
changing the state of the object from false to true. All special application modes can be
executed except for input forwarding, heating and cooling modes.
8.6.5 BLOCKING Object (Binary Value: 8-11)
The BLOCKING objects are used to block physical input signals from the control logic (all
modes excluding heating/cooling mode). By setting true value on the relevant object, the
module blocks the input, and no action will be executed. Setting false value restores
normal operation. The block input function does not work if the heating/cooling input
mode is set.
8.6.6 SETPOINT Object (Analog Value: 30-33)
The SETPOINT objects contain values which are used in heating/cooling modes (4U4O-H
and 4U4O-H-IP only) as the setpoints for heating/cooling control algorithm.
The default Setpoint value is
21.
WARNING!
In case if the temperature sensor fails (if it is disconnected or shorted), the heating
mode does not work, and the output remains in the false state.