10 Sensor signal outputs
Holding register (Modbus RTU and Modbus TCP)
Channel
description
Resolution Format Length Register address
Gas temperature 0.1 FLOAT 4-Byte 0
Pressure 0.001 FLOAT 4-Byte 2
Velocity 0.1 FLOAT 4-Byte 4
Flow 0.1 FLOAT 4-Byte 6
Consumption 1.0 UNIT32 4-Byte 8
Reverse velocity 0.1 FLOAT 4-Byte 10
Reverse flow 0.1 FLOAT 4-Byte 12
Reverse
consumption
1.0 UINT32 4-Byte 14
System status 1.0 UINT32 4-Byte 24
Remark: The physical units are configurable using the service App S4C-
FS or the optional sensor display.
Response message
In the response message that the device returns to the master:
• Function code: 03
• Byte order (32-bit data): MID-LITTLE-ENDIAN.
• To properly decode the 4-byte float and unsigned integer data in
the response message, the master must change the byte order
from the MID-LITTLE-ENDIAN received to the order that it is using
(LITTLE-ENDIAN or BIG-ENDIAN).
Byte sequencing
Byte order Byte sequencing (HEX) Example
MID-LITTLE-ENDIAN
(Read from the device)
A B C D 0x 0A 11 42 C5
LITTLE-ENDIAN B A D C 0x 11 0A C5 42
BIG-ENDIAN C D A B 0x 42 C5 0A 11
42 S430
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