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16 Appendix
16.1 Abbreviations
Below is a list of the most common and possibly somewhat cryptic abbreviations in
alphabetical order.
Heating
Cooling
AbsHu Absolute
humidity
AC Alternating
current
AI Analog
input
AO Analog
output
DC Direct
current
DewPnt
Dew point temperature
DI Digital
input
DlyOn Switch-on
delay
DlyOff Switch-off
delay
DO Digital
output
DX
Direct expansion cooling
EIB
European Installation Bus (to be replaced by KNX)
Enth Enthalpy
EnthDiff Enthalpy
difference
I I-mode
KNX
KNX bus (for operating and process information)
KNX LTE-Mode
New communication standard used by Synco
TM
and RXB
KNX S-Mode
Same as with EIB to date
LCD Liquid
crystal
display
LED
Light emitting diode
HMI
Human machine interface
P P-mode
PI PI
mode
RelHu Relative
humidity
SA Switching
interval
SD Switching
differential
SpHEco
Eco setpoint high
SpH Setpoint
high
SpL Setpoint
low
SpLEco
Eco setpoint low
StepSwi Setpoint
change
t Time
TA Outside
temperature
Temp Temperature
TiCst Rundown
time
TiRup Runup
time
TiOnMin
On time minimum
TiOffMin
Off time minimum
Tn
Integral action time
w Setpoint
WetBlb
Wet bulb temperature
x Actual
value
Xp P-band
x
Z
Actual value supp air temp
198 / 216
Siemens
Switching and monitoring device RMS705B
CE1P3124en
Building Technologies
Appendix
01.04.2010