S+S Regeltechnik AERASGARD RFTM- LQ-PS-CO2-Modbus Operating Instructions, Mounting & Installation page 22

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AERASGARD ® RFTM - LQ - PS - CO2 - Modbus | Telegrams
TELEGRAMS
Function 08 Diagnostics
The following sub function codes are supported
Sub Function Parameter
Code
00 Echo of transmission data
(Loopback)
01 Restart Modbus
(Reset listen-only mode)
04 Activation listen-only mode
10 Delete counter
11 Counter bus telegrams
12 Counter communication errors
(Parity, CRC, frame errors, etc.)
13 Counter exception telegrams
14 Counter slave telegrams
15 Counter telegrams without answer
Function 17 Report Slave ID
Composition of answer telegram
Byte No. Parameter
00 Number of bytes
01 Slave ID (device type)
02 Slave ID (device class)
03 Status
04 Version number (release)
05 Version number (version)
06 Version number (index)
Data Type Answer
Echo data
Echo telegram
No answer
Echo telegram
Unsigned 16 bit All valid bus telegrams
Unsigned 16 bit Faulty bus telegrams
Unsigned 16 bit Error counter
Unsigned 16 bit Slave telegrams
Unsigned 16 bit Broadcast messages (address 0)
Data Type Answer
Unsigned 8 Bit 6
Unsigned 8 Bit AERSGARD
17 = T,H,V,P,C
18 = T,H,V,C
19 = T,H,C
20 = T,H
21 = T,H,P
T: temperature
H: relative humidity
V: air quality (VOC)
P: particulate matter (PM)
C: carbon dioxide (CO2)
Unsigned 8 Bit 60 = AERASGARD
Unsigned 8 Bit 255 = RUN, 0 = STOP
Unsigned 8 Bit 1...9
Unsigned 8 Bit 1...99
Unsigned 8 Bit 1
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