Emerson E2 User Manual

The RMS enables the E2 ability to measure the refrig-

erant used to add, remove and repair an asset that has a 
refrigerant charge. RMS is available for E2 versions 3.01 
and above. The RMS comes with two components that are 
installed together, the RMS asset and the RMS scale. A 
total of 99 RMS applications can be supported by the E2. 
The RMS is a licensed application. For licensing instruc-
tions, refer to the software licensing section (see Section 
10.15, License Management).When an RMS Asset is 
licensed, this automatically includes one RMS Scale.

There will be one E2 RMS asset instance for each 

refrigerant charged asset. A refrigerant-charged asset can 
include HVAC, Rack, and Small Appliance.

The RMS asset can perform the following functions;

• Charge Asset - The asset will be filled with refrig-

erant. The Cylinder Accumulated Weight and the 
Total Accumulated Weight will be reset to 0.0. If an 
RMS Scale is not present, manually input the end-
ing weight and the starting weight of the cylinders. 
(This applies during charging or reclaim, if more 
than one cylinder is needed.)



(Note to cancel charging, press Enter from the Sta-
tus screen and select Application Commands, 3. 
Close Ticket. Enter a reason in the Tech Comment 
field and press F10 to cancel the charge.)

• Reclaim Refrigerant - The refrigerant will be 

removed from the asset. The Cylinder Accumulated 
Weight and the Total Accumulated Weight will be 
reset to 0.0. If an RMS Scale is not present, manu-
ally input the ending weight and the starting weight 
of the cylinders. (This applies during charging or 
reclaim, if more than one cylinder is needed.)



(Note to cancel charging, press Enter from the Sta-
tus screen and select Application Commands, 3. 
Close Ticket. Enter a reason in the Tech Comment 
field and press F10 to cancel the charge.)

• Change Cylinder/New Cylinder - The container 

of refrigerant will be removed and replaced with a 
new one. If an RMS Scale is not present, manually 
input the ending weight and the starting weight of 
the cylinders. (This applies during charging or 
reclaim, if more than one cylinder is needed.)



(Note to cancel charging, press Enter from the Sta-
tus screen and select Application Commands, 3. 
Close Ticket. Enter a reason in the Tech Comment 
field and press F10 to cancel the charge.)

• Close Ticket - Select to confirm charging, reclaim-

ing or changing refrigerant. An ending weight, and 
the total accumulated weight will be displayed. If 
an RMS Scale is not present, manually input the 
ending weight and the starting weight of the cylin-
ders. Close Ticket will open the Charge Asset or 
Reclaim Refrigerant Ticket screen depending on 
which action is being performed. If adding or 
removing refrigerant, the refrigerant ticket screen 
should be filled out. Press F1 to send.

• Cancel Ticket - Select to cancel the process. An 

entry for a reason for cancelling the ticket will be 
required. An entry will be written to the log.

• Refrigerant Ticket - When changing, adding, or 

removing refrigerant, the RMS Ticket screen for 
charges or reclaims (depending on whether refriger-
ant is added or removed) is filled out. Press F1 to 
send.

The RMS scale used for weighing the refrigerant tank 

for a specific asset. The RMS scale communicates using 
MODBUS. The RMS scale will appear as a device in the 
device summary list and will be consistent with other 
devices and their online/offline status. 

The RMS scale communicates using the ASCII MOD-

BUS protocol. It can exist on the same MODBUS route as 
RTU MODBUS devices as long as the baud rate, and 
serial settings are the same ( # of bits, Parity, # of Stop 
Bits). On a mixed network (RTU and ASCII MODBUS) 
address 58 is not supported. 58 is the ASCII value for a “:”

Detailed Setpoint Change Logging stores in a log any 

setpoints that change, when the setpoint was changed, 
what the original value was, and what the value was 
changed to. 

The log is always enabled except for start-up and 

restore and cannot be disabled by the user. This data is 
retrieved and displayed on the E2 front panel. 

The following information will be stored for detailed 

setpoint change logging:

• Time Stamp – the time and date of the setpoint 

change in local time.