S+S REGELTECHNIK PREMASGARD 724 Modbus Serie Bedienungs- Und Montageanleitung Seite 20

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PREMASGARD
READOUT IN THE DISPLAY
The display value depends on the set unit system (see table "Function 05 Write Single Coil").
If required, the unit can be switched from SI (default) to imperial units.
Standard display (cyclic)
By default, the first line indicates the value while the second line indicates the corresponding unit
alternated (approx. every 6 seconds):
differential pressure [Pa] [inWC] in channel 1,
differential pressure [Pa] [inWC] in channel 2,
temperature [°C] [°F] for type 'T' if applicable
Alternative display (static)
The Modbus interface can be used to program an alternative output variable instead of the standard display:
3
volume flow [m /h] [CFM] in channel 1,
differential pressure [Pa] [inWC] in channel 1 or 2,
5emperature [°C] [°F] for type 'T' if applicable
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. volume flow (see the table "Function 06 Write Single Register").
Freely configurable display (Tyr 2)
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.
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724x - Modbus | Configuration
1. Reading
2. Unit
3. Index
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