Before explore into the description and functions of the various subsystems, it is appropriate to introduce a general concept that applies to the entire REG System, that of the input multiplexer.
...
The REG System is totally flexible from this point of view, and allows the signal to be connected to whatever input of the boards constituting the system.
ANALOG INPUT SELECTOR
Note
The following examples and images are taken from the RegConfig software, but the same settings can also be made from the LCD display of the REG-DIN-8 board. At all points of the configuration where a temperature (and humidity) value should be (or must be) acquired, there is a drop-down menu which will be illustrated below.
...
If the REG-DIN-8 (REG), REG-EXP-8 (EXP x), REG-IOA, REG-IOB (IOA x / IOB x) or REG-UGW-485 (UGW x) boards have been selected, the Channel field allows you to specify which input, among those available on the selected board type, to use for the reading; the list that appears automatically adapts to the selected board, listing the available channels; for example, in the case of EXP board, 8 channels appear; if an IOA type board is selected, only two channels are displayed:
PHOTO TBD
...
If the REG-AQ-Sxx (AQ) bus sensor were selected, the channel field must be left at s/set as default, which means that the sensor has no display:
PHOTO TBD
For temperature and humidity sensor (from T160 to TH 223) you must select s/set if they are REG-TH-Sxx sensor, without display and therefore without the possibility of changing setpoint. If c/set is selected, this means that a REG-THL-Sxx sensor with display has been installed.
...
TEXT G2/G0 and TEXT G1 = takes the outside temperature value passed by the G0 or G2 and G1 generator (an Opentherm generator must be connected to use this)
TMAND G1 and TMAND G2/G0 = takes the water outlet temperature value passed by the G0 or G2 and G1 generator (an Opentherm generator must be connected to use this)
TRIT G1 e TRIT G2/G0 = takes the water inlet temperature value passed by the G0 or G2 and G1 generator (an Opentherm generator must be connected to use this)
DHW = this value is only displayed for the sensor on the DHW page and corresponds to the DHW temperature passed by the G0 generator (an Opentherm generator must be connected to use this and a DOT display with Opentherm on board must be used)
TDHW Gx = takes the DHW temperature value passed by the Gx generator (an Opentherm generator must be connected to use this)
HOST = TBD
100%rh = a value of 100% relative humidity is displayed
MATHx = takes the value of the result of the corresponding mathematical operation (see MATH FUNCTIONS)
?25 up to ?95 = TBD
SET Zx = takes the current zone set point as the temperature value
n/u = not used
PHOTO TBD
SENSOR TYPE FIELD
The third field allows you to specify the various types of NTC sensor that REG System boards are capable of acquiring:
PHOTO TBD
D = Default, indicates the reference for the board, for the REG System, default = M
M = NTC 12kOhm Beta 3977 probes (products with these characteristics are STM/STB/STE/TP-Sxx)
A = NTC 10kOhm Beta 3970 probes (products with these characteristics are STA)
S = NTC 10kOhm Beta 3435 probes (products with these characteristics are OEM)
L = is a linear reading, that is it normalizes the value read from the input from 0 to 100 (it is used in special occasions and to the manufacturer’s instruction)
R = Raw value are unprocessed value acquired in specific situations, if needed, as in the case of using the REG2VFS, it is specified in the product data sheet.
...
The first part of the field allows you to select from which board to acquire the digital input status (0 or 1). The drop-down menu lists all the boards that can potentially be present in a system:
PHOTO TBD
then from the REG (REG-DIN-8) board to the expansions EXP (REG-EXP-8), IOA and IOB (REG-IOA and REG-IOB).
...
It is also possible to use the virtual digital readings acquired by the UGW via Modbus directly from the device being managed (for more information, see the REG-UGW-485 Manual).
PHOTO TBD
At the bottom of the drop-down menu, you can select 3 particular options:
...
If the REG-DIN-8 (REG), REG-EXP-8 (EXP x), REG-IOA, REG-IOB (IOA x / IOB x) or REG-UGW-485 (UGW x) boards have been selected, the channel field allows you to specify which input, among those available on the selected board type, to use for reading the status; the list that appears automatically adapts to the selected bard type, listing the available channels; for example, in the case of EXP board 8 channels appear; if an IOB type board is selected, only two channels are displayed:
PHOTO TBD
PHOTO TBD
As can be seen from the photos, the digital contact can be taken as either normally open (IAx) or normally closed (/IAx) to satisfy the multiple system requirements.
If VDout L or VDout H has been chosen, the channel field will be populated according to the setting that has been made except the first 13 digital outputs:
PHOTO TBD
If AlarmDout has been chosen, the channel field will be populated with all the alarms available within the REG System setting:
PHOTO TBD
Obviously, they will work or not depending on the program of the specific case.