SUTO S421, Instruction And Operation Manual, Page: 30 / 44

10 Sensor signal outputs
10.3 Modbus output
Communication parameters (Modbus RTU)
Baud rate : 19200
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
Communication parameters (Modbus TCP)
DHCP : Yes
MAC : Set ex-factory
IP address : Dynamic or Static
Subnet : Dynamic or Static
Gateway : Dynamic or Static
Timeout : >= 200 ms
Remarks:
•
Modbus output settings can be changed using the S4C-FS Android
service app or the optional sensor display.
•
In the Modbus TCP mode, a slave device does not support
concurrent connections because it can respond to only one polling
message at a time.
Holding register (Modbus RTU and Modbus TCP)
Channel description Resolution Format Length
Register
address
Flow 0.1 FLOAT 4-Byte 6
Consumption 1 UNIT32 4-Byte 8
30 S421