S+S Regeltechnik AERASGARD AC02-Modbus Operating Instructions, Mounting & Installation page 19

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HYGRASGARD
READOUT IN THE DISPL AY
By default, the display indicates the following measurements with the corresponding units cyclically and consecutively:
CO2 content in ppm, air quality (VOC) in %, temperature in °C, relative humidity in % r.H.
The Modbus interface can be used to program an alternative output variable instead of the standard display:
CO2 content in ppm, air quality (VOC) in %, temperature in °C, relative humidity in % r.H., atmospheric pressure in hPa
In this case, the first line indicates the value while the second line indicates the corresponding unit statically.
The index in the third line indicates the display type, e.g. atmospheric pressure (see the table "Function 06 Write Single
Register").
The Modbus interface allows the display screen to be individually configured, both in the 7 segment range and in
the dot-matrix range. This means that messages such as those from the PLC can be displayed.
For the individual display, the register 4x0001 (physical value displayed) must contain the value 10.
The registers 4x0002 to 4x0019 contain information about the characters and segments to be displayed.
The dot-matrix area is also programmable in the default setting (register 4x0001 contains the value 0).
In this case, the current measured value is automatically displayed in the 7-segment area.
The two left-aligned positions are represented by the register 4x0003 (range -9...99). The value 0 switches
off the display of both positions. The display is only active if the register 4x0002 has positive values.
Composition of Segment Pattern (Register 4x0005)
Bit 0 ...... Dot A
Bit 1 ...... Dot B
Bit 2 ...... Dot C
Bit 3 ...... Dot D
Bit 4 ...... Dot DP1
Bit 5 ...... - -
Bit 6 ...... Dot E
Bit 7 ...... Dot DP2
Bit 8 ...... - -
Bit 9 ...... - -
Bit 10 .... - -
Bit 11 .... - -
Bit 12 .... - -
Bit 13 .... - -
Bit 14 .... - -
Bit 15 .... - -
AFTM- ⁄ KFTM - LQ - CO2 - Modbus | Configuration
Reading: 1013
hPa
Unit:
Index: 5
Dot A Dot B
Dot Matrix
Dot DP1 Dot C Dot DP2
A H B I C J D K E
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Rev. 2021 - V32 intro
Dot D Dot E
L F M G N