Emerson MODBUS 485 Manuel D’Utilisation

Remote Sensor Temperature Calculation 

Calculation method applied to temperature readings from the remote sensors to 

determine a single temperature measurement value for cooling and heating 

control. 

Remote Sensor Temperature 

Air temperature as measured by remote sensor. 

Return Air Over Temp Threshold 

Threshold value used in the [Return Air Over Temperature] event. 

Return Air Over Temperature 

Return air high temperature event. 

Return Air Sensor Issue 

The air sensor at the inlet of the unit is disconnected or the signal is out of range. 

Return Air Temperature 

The temperature of the inlet air 

Return Dew Point 

Dew point temperature measured at the inlet of the unit. 

Return Humidity Out Of Proportional 

Band 

[Return Humidity] has exceeded the upper limit of [Dehumidification Proportional 

Band], or has dropped below the lower limit of [Humidification Proportional Band] 

], for an extended period of time. 

Return Humidity 

Relative humidity measured at the inlet of the unit. 

Server Class 

The general classification for this system 

Service Required - Event Control 

Enable/disable the activation of the [Service Required] event. If set to 'disabled', 

the event will not be annunciated. This implies that the event will not be placed in 

any active event list or in any event history list. 

Service Required - Event Type 

The event type for the [Service Required] event. 

Service Required 

Unit requires servicing. 

Shutdown - Loss Of Power - Event 

Control 

Enable/disable the activation of the [Shutdown - Loss Of Power] event. If set to 

'disabled', the event will not be annunciated. This implies that the event will not 

be placed in any active event list or in any event history list. 

Shutdown - Loss Of Power - Event Type 

The event type for the [Shutdown - Loss Of Power] event. 

Shutdown - Loss Of Power 

System lost power. This event becomes active when the unit is powered on 

following an unexpected loss of power. This event remains active for 90 minutes. 

Smoke Detected - Event Control 

Enable/disable the activation of the [Smoke Detected] event. If set to 'disabled', 

the event will not be annunciated. This implies that the event will not be placed in 

any active event list or in any event history list. 

Smoke Detected - Event Type 

The event type for the [Smoke Detected] event. 

Smoke Detected 

Smoke detected. 

Supply Air Over Temp Threshold 

Threshold value used in the [Supply Air Over Temperature] event. 

Supply Air Over Temperature 

Supply air high temperature event. 

Supply Air Sensor Issue 

The air sensor at the outlet of the unit is disconnected or the signal is out of 

range. 

Supply Air Temperature 

Air temperature measured at the outlet of the unit. 

Supply Air Under Temp Threshold 

Threshold value used in the [Supply Air Under Temperature] event. 

Supply Air Under Temperature 

Supply air low temperature event. 

Supply Chilled Water Loss of Flow 

Supply chilled water flow is too low. 

Supply Chilled Water Over Temp 

Threshold 

Threshold value used in the [Supply Chilled Water Over Temp] event. 

Supply Chilled Water Over Temp 

[Supply Chilled Water Temperature] has exceeded [Supply Chilled Water Over 

Temp Threshold]. 

Supply Chilled Water Temperature 

Supply chilled water temperature. 

Supply Fluid Temp Sensor Issue 

The supply fluid temperature sensor is disconnected or the signal is out of range. 

Supply Humidity 

Relative humidity at the outlet of the unit. 

System Control Mode 

System control mode. 

System Date and Time 

The system date and time 

System Event Acknowledge/Reset 

Reset and/or acknowledge all events. 

System On/Off Control 

Turn system functionality on or off. 

System Operating State Reason 

The reason the system is in the current operating state.