10 Signal outputs
10.3 Modbus output
Communication parameters (Modbus/RTU)
Baud rate
: 19,200
Device address
: Last digits of serial number
Framing / parity / stop bit : 8, N, 1
Response time
: 1 second
Response delay
: 0 ms
Inter-frame spacing
: 7 char
Remarks:
The Modbus output settings can be changed using S4C-FS
Android App or the optional sensor display.
Holding register (Modbus/RTU)
Channel
description
Resolution
Format
Length
Register address
Medium temperature
0.1
FLOAT
4-Byte
0
Medium pressure
0.010
FLOAT
4-Byte
2
Actual velocity
0.1
FLOAT
4-Byte
4
Flow
0.1
FLOAT
4-Byte
6
Consumption
1.0
UNIT32
4-Byte
8
System status
N/A
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).
30