### RS Zone Sensor with Fan Control The information below provides a FULL description of this microblock and all of its properties. What information you see and what you can do with it depends on your license and the application you are in, and in some cases, a controller's driver version.
Microblock family | I/O Point microblocks
Icon and symbol |
What it does | Sends information to and receives values from a variety of sensor configurations. Works with a schedule and setpoint microblock to maintain zone temperature at setpoint. Enables the sensor's fan control and mode functionality. Can be used with: A single LogiStat Basic or LogiStat Plus connected to a controller's LogiStat port. An Rnet of RS sensors connected to a controller's Rnet port. See the RS Sensors Technical Instructions for supported Rnet configurations.
Click for details below How it works Inputs and outputs Properties Fan Speed Adjust Mode/Sensor Display Alarms Trends Simulation
#### How it works Some features of this microblock do not apply to all supported zone sensors. However, the type of zone sensor connected to the controller can be changed without changing the control program, so you should develop your control program to take advantage of all available features. The controller automatically detects the type of zone sensor and sets point addresses for a basic LogiStat Basic's or LogiStat Plus' OVRDE, ZONE, and SP ADJ inputs when you turn on the controller. When connected to each sensor, the microblock's output and input values behave as follows:
Output/ Input value | LogiStat Basic or RS Standard | LogiStat Plus or Rnet that includes an RS Plus | Rnet that includes an RS Pro | Rnet that includes an RS Pro-F
--- | --- | --- | --- | ---
ZONE | Current zone temperature (degrees). Units (Fahrenheit or Celsius) are determined at design time by the control program's Metric option. Calculated (Average, Maximum, or Minimum) from all communicating sensors* based on Zone Temp Method field selection.
|  | NOTE The RS Pro and RS Pro-F display the temperature of their sensor, not the calculated min, max, or average temperature.
SP ADJ | 0 | Setpoint adjustment (degrees) from sensor.
OVRDE | 0 | Value (minutes) of timed local override from sensor.
FAN | not used | not used | not used | If the input is true (on), the RS Pro-F displays a fan icon. As the user presses the FAN button on the sensor, the output value cycles through the Order of Speeds (limited by Number of speeds) set on the microblock's Fan Speed Adjust tab.
MODE | not used | not used | not used | As the user presses the MODE button on the RS Pro-F, the output value and sensor display cycle through the Modes Available settings from the microblock's Mode/Sensor Display tab.
OAT (optional) | not used | not used | As the user presses the RS Pro's or RS Pro-F's INFO button, the sensor cycles its display through all available and enabled input values (other than OCC, FAN, and ALARM), then returns to the ZONE output value. NOTE If you select the Disable info button on the Mode/Sensor Display tab, the RS Pro-F's display cycles through the OVRDE input value, the HTSP input value, and the CLSP input value, then returns to the ZONE output value as the user presses the sensor's INFO button.
HTSP | not used | not used
CLSP | not used | not used
AI1, AI2, BI1, BI2 (optional) | not used | not used | not used | If input and INFO button are enabled, values are included in RS Pro-F's INFO button display cycle.
OCC | not used | True (on) when the zone is occupied. Not true (off) when the zone is unoccupied. Connect to a time clock microblock or to other logic that indicates the zone's occupancy status.
|  |  | The RS Pro or RS Pro-F displays Occupied when the OCC input is true (on).
ALARM (optional) | not used | not used | If true (on), the RS Pro or RS Pro-F displays an alarm bell icon.
* This microblock's Properties page shows which sensors are communicating. Setpoint adjust The user can adjust zone setpoints from the zone sensor by no more than the Max adjust = ± number of degrees in either direction from the setpoint. EXAMPLE If the cooling setpoint = 74ºF, the heating setpoint = 70ºF, and Max adjust = ± 2.0, the user can raise the setpoints to a maximum of 76ºF and 72ºF or lower them to a minimum of 72ºF and 68ºF. If you check Reset setpoint adjust to zero when unoccupied, the microblock resets the SP ADJ output to 0 when the OCC input changes to false (off), and it remains at 0 when the OCC input changes again to true (on) or when the zone enters a timed local override condition. Timed local override Each time the user presses the zone sensor's local override or MANUAL ON button, the sensor sends a pulse signal to the controller. The microblock converts this binary signal into a time output (minutes) using the following formula: Time output (minutes) = # of pulses x Each pulse (minutes) The time output accumulates up to the microblock's Maximum Accumulation value, which cannot exceed 546 minutes (09:06:00 hh:mm:ss) regardless of additional pulses from the controller's input.
#### Inputs and outputs Inputs
HTSP Heating Setpoint | Heating setpoint (degrees). Connect to a setpoint microblock's HT output or to other logic that indicates the zone's heating setpoint.
CLSP Cooling Setpoint | Cooling setpoint (degrees). Connect to a setpoint microblock's CL output or to other logic that indicates the zone's cooling setpoint.
OCC Occupied | True (on) when the zone is occupied. Not true (off) when the zone is unoccupied. Connect to a time clock microblock or to other logic that indicates the zone's occupancy status.
FAN | If the input is true (on), the RS Pro-F displays a fan icon.
Optional Inputs Check the appropriate checkbox on the EIKON® Optional Inputs tab to enable these microblock inputs.
OAT Outside Air Temp | Check for an analog OAT wire input. A sensor with a display shows this value when a user cycles through the INFO button options.
ALARM | Check for a binary (digital) ALARM input. When the input is true (on) an RS Pro or RS Pro-F sensor displays an alarm bell icon.
AI1, AI2 Aux Analog Input 1 Aux Analog Input 2 | Select for an analog value to be displayed (with a small 1 or 2 indicating the input) with the selected units as the user cycles through the sensor's INFO button display. If the value exceeds 199 or -199, the sensor displays OF, indicating a display overflow condition. NOTE The Disable info button checkbox on the Mode/Sensor Display tab must be unchecked for the user to see these values.
BI1, BI2 Aux Binary Input 1 Aux Binary Input 2 | Select for a binary (digital) value to be displayed (with a small 1 or 2 indicating the input) as the user cycles through the sensor's INFO button display. The sensor displays ON when the value is true (on) or OF when the value is false (off). NOTE The Disable info button checkbox on the Mode/Sensor Display tab must be unchecked for the user to see these values.
Outputs
ZONE Zone Temp | Current zone temperature (degrees).
SP ADJ Setpoint Adjust | Setpoint adjustment (degrees) indicated by zone sensor. Connect to a setpoint microblock's HADJ and CADJ inputs.
OVRDE Override Time | Reads a pulse signal from a local override input, then converts the signal to a remaining time value (minutes). This value can be used by a time clock microblock with TLO to indicate a change in occupancy status.
FAN | As the user presses the FAN button on the sensor, the output value cycles through the Order of Speeds (limited by Number of speeds) set on the microblock's Fan Speed Adjust tab. Connect to any override or safety logic, then to a fan status or enable point.
MODE | As the user presses the MODE button on the RS Pro-F, the output value and sensor display cycle through the Modes Available settings from the microblock's Mode/Sensor Display tab. You can use this analog value to enable different control sequences based on the user's MODE selection.
#### Properties TIPS Alt+click any value in the WebCTRL® or Field Assistant interface to view property details, including its editing privilege and expression (location path) for use on graphics. You can right-click some properties in the EIKON® Property Editor and select Make editable or Make read-only to determine that property's functionality in your system.
Display Name | The microblock label used in the EIKON® application and the WebCTRL® interface. You can use any characters except the " character.
Reference Name RefName | Use the default reference name unless you want a more descriptive name for graphics or network links. Limitations: lower case only limited to 40 characters cannot begin with a number must be unique within a control program
Description | (optional) A BACnet-visible microblock description.
Lock Zone Temp to | Check to output the locked value from the microblock instead of the microblock's calculated value.
Editing Privilege | Preset - Each microblock property has an appropriate privilege or role assigned to it. You can use Global Modify in the WebCTRL® interface to find out what the actual privilege is. CAUTION If you change the Editing Privilege from Preset, the privilege you select will be used for all properties of this microblock, which is not always desirable.
Zone Temp Units | The unit of measurement of the microblock's present value. Select from the BACnet engineering units in this droplist. For some microblocks, you can customize the droplist by selecting Options > Preferences > Droplist Options.
Min Present Value Max Present Value | The temperature range of the sensor. These fields are for information only.
Resolution | The increment by which the microblock updates the value on its output wire in the WebCTRL® or Field Assistant system. The Resolution format is used to truncate the microblock’s actual value. For example, if you enter a value from: 0.1 to 0.9, the wire displays 1 digit to the right of the decimal 0.01 to 0.99, the wire displays 2 digits to the right of the decimal 1 or greater, the wire displays a whole number The Resolution value determines the increment by which the present value is updated. For example, if you enter: .2, the wire displays 8.4, 8.6, 8.8, ... .03, the wire displays 5.09, 5.12, 5.15, ... 10, the wire displays 30, 40, 50, ...
Setpoint Adjustment
Max adjust = ± | The maximum amount (degrees) by which the user can adjust the zone's setpoints from a zone sensor.
Reset setpoint adjust to zero when unoccupied | Check to set any setpoint adjustment to 0 each time the OCC input changes to false (off). SP ADJ remains at 0 when the OCC input changes to true (on) or when the zone enters a timed local override condition. Uncheck to use adjusted setpoints during unoccupied periods.
Timed Local Override These properties apply to the timed local override BACnet Analog Value object embedded in the RS Zone Sensor with Fan Control microblock. You can think of this object as a microblock within a microblock.
Display Name | The microblock label used in the EIKON® application and the WebCTRL® interface. You can use any characters except the " character.
Description | (optional) A BACnet-visible microblock description.
Units | The unit of measurement of the microblock's present value. Select from the BACnet engineering units in this droplist. For some microblocks, you can customize the droplist by selecting Options > Preferences > Droplist Options.
Increment | Minutes the microblock adds to the zone's occupied time for each press of the zone's local override button or switch.
Maximum Duration | Maximum value (up to 546 minutes) the microblock outputs regardless of additional pulses from the controller's input.
Allow Continuous | RS Pro and RS Pro-F only. If enabled, a user can press the sensor's local override button until the Maximum Accumulation value is reached, then press one more time to have a continuous override until the next occupied period or until the user cancels the override.
TLO Operating Sequence | Determines the order of timed local override modes the user can cycle through using the sensor's Manual On or override button. Pulse Acc - Each time the user presses the sensor's Manual On or override button, add the value in the Each Pulse = field to the override time up to the Max accum. value. The next time the user presses the button, go to the next specified mode of operation. Continuous On - When the user presses the sensor's Manual On or override button, set the zone to run continuously (24 hours per day) in the occupied mode. Cancel - Returns the zone to automatic control.
Maintain continuous through power fail | If the zone is in a continuously occupied mode, checking this option returns the zone to continuous operation when power is restored. If this option is not checked, the zone returns to automatic control when power is restored.
Network Visible | Check to allow other BACnet equipment to read or change the microblock's present value. Must be checked for this microblock to generate alarms.
Object ID | Auto-assign - A BACnet Object ID is assigned by the system. Use specific value - (0–3999999) Assign a number that is unique within the controller.
Sensor Array
Sensor calculation method | For Rnets with more than one sensor. Based on your selection, the microblock's ZONE output shows the Average, Maximum, or Minimum of up to 5 Rnet zone sensors. NOTE This feature does not apply to the basic LogiStat Basic or LogiStat Plus.
BACnet Configuration
Network Visible | Check to allow other BACnet equipment to read or change the microblock's present value. Must be checked for this microblock to generate alarms.
Object Instance | Auto-assign - A BACnet Object ID is assigned by the system. Use specific value - (0–3999999) Assign a number that is unique within the controller.
COV Increment | An Analog Network Input (ANI) that references this microblock in its Address field tries to subscribe to this microblock's COV (Change of Value) service. If subscription succeeds, the ANI receives a value from this microblock only when this microblock's present value changes by at least the COV Increment. If subscription fails, the ANI reads this microblock's value at intervals specified in the ANI's Refresh Time field.
Show Property Page Text | Check to show this microblock's value on the equipment's Properties page.
#### Fan Speed Adjust
Number of speeds | Determines the number of speeds that a user can cycle through using the sensor's FAN button. The microblock outputs the speed value on its FAN output wire. See "Inputs and outputs" in this microblock's help. Type 0 to disable the FAN button.
Order of speeds | Determines the order of the speeds (limited by Number of speeds) that a user will cycle through using the sensor's FAN button. The microblock outputs the speed value on its FAN output wire. See "Inputs and outputs" in this microblock's help.
Only Allow Auto on Unoccupied | Check this option to set the FAN output to 0 (Auto) when the OCC input is false (off). The FAN output remains at zero until adjusted from the sensor during an occupied period.
#### Mode/Sensor Display
Modes Available | The number of modes in addition to automatic control that you want the sensor to cycle through and output on the MODE output wire as the user presses its MODE button. Type `0` to disable mode selection.
Maintain Mode Through Power Failure | Check this option to return the MODE output value to the user's last MODE selection at the sensor after a power failure. Uncheck to return MODE output value to 0 (automatic control) after a power failure.
Reset Mode to ___ During Unoccupied | Check this option to use the entered value as the MODE output value when the OCC input changes to false (off). Uncheck to set the MODE output value to the user's last MODE selection at the sensor regardless of the OCC input value.
Modes 1–4
Heat/Cool | Heating - The sensor displays Heating when the user selects this mode. Cooling - The sensor displays Cooling when the user selects this mode. None - The sensor does not display Heating or Cooling when the user selects this mode.
Occupied/ Unoccupied | Occupied - The sensor displays Occupied when the user selects this mode. Unoccupied - The sensor displays Unoccupied when the user selects this mode. None - The sensor does not display Occupied or Unoccupied when the user selects this mode.
Large Text | Select the large text characters you want the sensor to display when the user selects this mode.
Sensor Display
Disable info button | Select to limit the sensor's INFO button display cycle to the OVRDE input value, the HTSP input value, and the CLSP input value before returning the display to the ZONE output value. Clear to allow the user to press the sensor's INFO button to cycle through all available and enabled input values other than OCC, FAN, and ALARM before returning the display to the ZONE output value.
Disable idle display | Select to display a blank screen when the user is not pressing the sensor's MANUAL ON button to set override time or the WARMER or COOLER buttons to change setpoints. Clear to display the ZONE output value and any configured input values when the user is not interacting with the sensor.
#### Alarms
Potential alarm source | Check to make this microblock available in the system's Alarm Sources list.
Critical | Determines the color of the system-wide alarm button when the alarm comes in if the alarm's Template field is set to Universal. = Critical = Non-critical
Category | The category you want to use to filter this microblock's alarms on the system's Alarms page > View tab.
Template | Universal - Allows your system to use the Alarm text and Return text defined in the microblock, and the Critical checkbox to determine the color of the system-wide alarm button when the alarm comes in.
Alarm
Low Limit Enable | Check to send an alarm when the microblock's present value remains below the Low Limit value for the defined Delay Seconds.
Low Limit | The value the microblock's present value must drop below to send an alarm.
High Limit Enable | Check to send an alarm when the microblock's present value remains above the High Limit for the defined Delay Seconds.
High Limit | The value the microblock's present value must rise above to send an alarm.
Dead Band | The amount inside the normal range by which an alarm condition must return before a return-to-normal notification is generated. EXAMPLE
Delay Seconds | The time the microblock's present value must remain in an alarm condition before the microblock sends an alarm.
Alarm text | The message displayed on the WebCTRL® Alarms page > View tab when an alarm condition occurs. A relative path is useful for alarm messages that you will reuse in multiple WebCTRL® locations because the path is relative to the item that contains the path.
Alarm requires acknowledge | Check to require that an operator acknowledge alarm notifications on the system's Alarms page > View tab.
Return to Normal
Return Enabled | Check to send a message when an alarm condition has returned to normal.
Return text | The message displayed on the WebCTRL® Alarms page > View tab when an alarm condition returns to normal. A relative path is useful for alarm messages that you will reuse in multiple WebCTRL® locations because the path is relative to the item that contains the path.
Return requires acknowledge | Check to require that an operator acknowledge return-to-normal notifications on the system's Alarms page > View tab.
Fault
Fault Enabled | Check to send a message when a fault condition occurs, such as a misconfigured or non-existent sensor.
#### Trends
Enable Trend Log | Check to have the controller collect trend data for the microblock's present value.
Sample every ___ (hh:mm:ss) | Records the microblock's present value at this interval. EXAMPLE Type `00:10:00` to record the microblock's present value every 10 minutes.
Sample on COV (change of value) | Records the microblock’s present value only when the value changes by at least the COV Increment.
Max samples | The number of data samples the controller allocates memory for. Memory consumption is 10 bytes for each sample plus 48 bytes. For example, for 100 samples: (100 x 10 bytes) + 48 = 1048 bytes of memory The allocated memory is constant regardless of how many samples are actually recorded. If you do not enable trending, no memory is consumed. NOTE Click Reset on the Properties page in the WebCTRL® or Field Assistant system to delete all samples currently stored in the controller.
Enable Trend Historian | Check this field to archive the controller's collected trend data to the system database after every 129 data samples. NOTES You must check Enable Trend Log if you want to Enable Trend Historian. You can change Enable Trend Historian archival settings and other trend properties on the Properties page in the WebCTRL® or Field Assistant system.
Keep historical trends for __ days | This is based on the date that the sample was read. Set this field to 0 to use the system default value.
Write to historian: Every ___ trend samples Use default (45% of Max samples) | Writes all trend data in the controller to the system database each time the controller collects the specified number of samples. You can select Every __ trend samples and enter a number greater than zero and less than the number in the Max samples field, or you can select Use default. The number of trends specified must be accumulated at least once before the historical trends can be viewed.
In the WebCTRL® or Field Assistant system only: |
Stop When Full | Check this field to stop trend sampling when the maximum number of samples is reached.
Enable trend log at specific times only | Collects trend data for the specific period of time you define in the time and date fields.
Store Trends Now | Writes all trend data in the controller to the system database without having to enable trend historian.
Trend samples accumulated since last notification | Shows the number of samples stored in the controller since data was last written to the database.
Last Record Written to Historian | Shows the number of trend samples that were last written to the database.
Delete | Deletes all trend samples stored in the database for the microblock.
BACnet Configuration | The Object Name is a unique alphanumeric string that defines the BACnet object. Although the Object Name field can be edited, it is not recommended. The Notification Class is set to 1 to receive alarms generated by Automated Logic® controllers.
#### Simulation Define the value(s) the microblock will use when you simulate the control program.