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 9 Sensor signal outputs

 9.3  Modbus output

Mode 

: RTU

Baud rate

: 19200

Device address

: Last two digits of the serial number

Framing / parity / stop bit : 8, N, 1
Response timeout

: 1 second

Response delay

: 0 ms

Inter-frame spacing

: 7 char 

Remarks: 

Modbus communication settings can be changed by the 

service app

S4C-FS.

Channel description Resolution

Format

Length

Modbus

Register

address

Flow

0.1

FLOAT

4-byte

6

Consumption

1

UNIT32

4-byte

8

Pressure

0.01

FLOAT

4-byte

2

Remark

: The physical units of measurement channels can be configured 

using the service APP S4C-FS.
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 MID-LITTLE-ENDIAN to the order that it is using (LITTLE-
ENDIAN or BIG-ENDIAN). 

Byte sequencing of byte orders

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

S418-V

17

Содержание S418-V

Страница 1: ...English Instruction and operation manual S418 V Vacuum Flow Meter With Data Logger...

Страница 2: ...non compliance with this manual Should the device be tampered with in any manner other than a procedure which is described and specified in the manual the warranty is void and the manufacturer is exem...

Страница 3: ...1 Installation considerations 12 8 2 LED indicators 12 8 3 Electrical connection 13 9 Sensor signal outputs 15 9 1 Analog output 15 9 2 Pulse output 15 9 3 Modbus output 17 10 Configuration 18 11 Read...

Страница 4: ...contact the manufacturer WARNING Compressed air Any contact with quickly escaping air or bursting parts of the compressed air system can lead to serious injuries or even death Do not exceed the maxim...

Страница 5: ...owed to use the product in explosive areas Please observe the national regulations before during installation and operation Remarks It is not allowed to disassemble the product ATTENTION Measurement v...

Страница 6: ...age the humidity must be 90 no condensation 2 Registered trademarks SUTO Registered trademark of SUTO iTEC MODBUS Registered trademark of the Modbus Organization Hopkinton USA HART Registered trademar...

Страница 7: ...uant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate rad...

Страница 8: ...store or our Website For more information see chapter 10 5 Features Inline thermal mass flow sensor virtually independent of pressure and temperature changes Process connection of G type thread with...

Страница 9: ...ransport temperature 0 50 C 30 70 C Medium conditions 0 50 C rH 90 no condensation Pressure range 0 01 1 60 bar a Material Process connection aluminum alloy Wetted parts aluminum alloy Top casing PC A...

Страница 10: ...load 250R Pulse output 1 pulse per consumption unit m3 or ft3 isolated switch max 30 VDC 200 mA pulse length 10 120 ms depends on flow rate Modbus output See section 9 3 6 5 Accuracy of flow Accuracy...

Страница 11: ...ccuracy 0 5 FS Parameters Pressure bar default or psi Sensor Piezzo resistive sensor Measuring range 0 01 1 60 bar a 7 Dimensional drawing A mm B mm C mm D mm E mm DN 8 15 35 0 48 0 120 4 35 0 93 0 DN...

Страница 12: ...on manual No 1 Calibration certificate No 8 1 Installation considerations In order to maintain the accuracy stated in the technical data the senor must be installed inline and fitted to a tube with th...

Страница 13: ...trical connection The flow sensor is equipped with two connectors A and B By default the sensor is delivered with one 5 m cable with a M8 connector on one side and open wires on the other side To make...

Страница 14: ...in 1 Pin 2 Pin 3 Pin 4 Modbus A D VB VB D B D GND NA D Pulse and analog A I VB VB I B I P P I M Bus A M Bus VB VB M Bus B M Bus NA NA M Bus Wire color brown white blue black ATTENTION Do not screw the...

Страница 15: ...caling is from 0 to the max flow The corresponding flow in different pipe sizes can be found in chapter 14 9 2 Pulse output The sensor outputs one pulse per consumption unit This pulse output can be c...

Страница 16: ...or signal outputs Volumetric flow m3 s Volumetric flow m3 h Pulse length ms Max pulse output per hour 3 10800 120 1080 3 10800 60 2880 6 21600 30 3960 Pulse connection diagram Variant 1 Variant 2 16 S...

Страница 17: ...4 byte 2 Remark The physical units of measurement channels can be configured using the service APP S4C FS In the response message that the device returns to the master Function code 03 Byte order 32 b...

Страница 18: ...supported To be allowed to change settings the App needs to scan the QR code on the calibration certificate This ensures that only authorized users can access the sensor settings For more information...

Страница 19: ...418 V log file supports up to 5 6 million records due to its memory size which is equivalent to 64 day data at the one second sampling rate When the S418 V runs out of memory the new record will repla...

Страница 20: ...ew the time stamp of the first log recorded Stop Date Time To view the time stamp of the last log recorded Number of Samples To view the number of log records in the S418 V data logger Sampling Rate m...

Страница 21: ...Click the File menu to have graphic views on measurement data in a log file and if needed to export this log file to the Excel or CSV format For more information about operations on S4A click the Hel...

Страница 22: ...rmore the accuracy However we recommend to calibrate the instrument at least once per year The calibration is excluded from the instruments warranty For this please contact the manufacturer 13 Disposa...

Страница 23: ...line pressure 300 hPa Vacuum flow 750 l min Process connection DN8 DN15 DN20 DN25 Absolute Pressure hPa Vacuum flow in l min 56 222 444 778 900 63 250 500 875 800 71 286 571 1000 700 83 333 667 1167 6...

Страница 24: ...for S418 V Modbus M Bus systems including 2 m cable with a M8 connector A554 0109 Main power supply 100 240 VAC 24 VDC 0 5 A 2 m cable with M8 connector A553 0137 Connection cable S418 V to S 551 5 m...

Страница 25: ...dress Lo 1 byte Register Hi 1 byte No of points Hi 1 byte Register Lo 1 byte No of points Lo 1 byte CRC 2 bytes Register Hi 1 byte Register Lo 1 byte CRC 2 bytes 05 0x05 Write single coil Request Resp...

Страница 26: ...1 byte No of registers Hi 1 byte No of registers Hi 1 byte No of registers Lo 1 byte No of registers Lo 1 byte Byte count 1 byte CRC 2 bytes Data Hi 1 byte Data Lo 1 byte Data Hi 1 byte Data Lo 1 byte...

Страница 27: ...S418 V 27...

Страница 28: ...8 San Wan Road Sheung Shui N T Hong Kong Tel 49 0 7634 50488 00 Fax 49 0 7634 50488 19 Email sales suto itec com Website http www suto itec com Tel 852 2328 9782 Fax 852 2671 3863 Email sales suto ite...

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