Siemens 125-1957 User Manual
Page 37
 
Application 2299 – Slave Mode
Siemens Building Technologies, Inc.
27
Descriptor Address
Application
Description
DX 44
2284,
2286,
2287
The actual status of the DX cooling compressor.
DO 5
45
2287, 2299
Digital output 5 controls a 24 Vac load with an ON or OFF 
status. 
EHEAT 1
45
2281, 2283, 
2284, 2286 
The actual status of the first stage of electric heat.
DO 6
46
2287, 2299
Digital output 6 controls a 24 Vac load with an ON or OFF 
status. 
EHEA T 2
46
2281, 2283, 
2284, 2286 
The actual status of the second stage of electric heat.
DO 7
47
2287, 2299
Digital output 7 controls a 24 Vac load with an ON or OFF 
status. 
EHEAT 3
47
2281, 2283, 
2284, 2286 
The actual status of the third stage of electric heat.
DO 8
50
2299
Digital output 8 controls a 24 Vac load with an ON or OFF 
status. 
FAN 50
2281,
2283,
2284, 2286, 
2287 
This point is a digital output used to control the fan. ON 
indicates that the DO is energized; OFF indicates that the DO is 
de-energized. 
NGT HW HTG
53
2281, 2283, 
2284, 2286, 
2287 
YES indicates that the heating valve will be kept open in night 
mode in both heating and cooling modes (recommended for 
systems with hot water). NO indicates heating valve will be 
controlled normally. 
Valid input: YES or NO 
NGT CLG MODE
54
2281, 2283, 
2284, 2286, 
2287 
YES indicates that night cooling is available. NO indicates that 
night cooling is not available. 
Valid input: YES or NO 
AUX OUTPUT
55
2281, 2283, 
2284, 2286 
Indicates the percentage of time the auxiliary radiation will be 
ON. 
Valid values: 0 to 100% 
AUX HTG TIME
57
2281, 2283, 
2284, 2286 
The period of the auxiliary radiation pulse-width modulation 
algorithm. 
Valid values: 0 to 255 minutes 
EHT STG DELY
58
2281, 2283, 
2284, 2286 
Delay between a stage of electric heat changing state and the 
next change of state of any stage. 
Valid input: 0 to 255 seconds 
DO DIR.REV
59
2281, 2283, 
2284, 2286, 
2287, 2299, 
The configuration setup code for DOs. Allows the DOs to be 
direct or reverse acting (enabled equals energized or enabled 
equals de-energized). 
HTG OUTPUT
60
2281, 2283, 
2284, 2286, 
2287 
If the heating control device is a valve or face-bypass damper, 
then the value of this point indicates the position of the heating 
actuator. If electric heat is used, then the value of this point 
determines how many stages are ON. 
Valid values: 0 to 100%