Siargo FS4701, User Manual, Page: 23 / 35

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Totalizer 1 0x0004 ~ 0x0005
Write Y
Read Y
Description
Totalizer or accumulated flow rate
When instant flow rate unit is sccm, accumulated flow rate unit is scc;
When instant flow rate unit is SLPM, accumulated flow rate unit is SL;
Value type UINT 32
Notes
Totalizer = value (0x0004) * 65536 + value (ox0005)
e.g.: for a totalizer or accumulated flow rate of 123,456 SL, the user will read
“1 (0x0001)” from register 0x0004; “57920(0Xe240)” from register 0x0005.
Then, the totalizer or accumulated flow rate
= 1 * 65536 + 57920 = 123,456.
Totalizer 2 0x0004 ~ 0x0006
Write Y
Read Y
Description
Totalizer or accumulated flow rate
When instant flow rate unit is sccm, accumulated flow rate unit is SL;
When instant flow rate unit is SLPM, accumulated flow rate unit is Nm
3
;
Value type UINT 32 + UNIT 16
Notes
A1 = value (0x0004) * 65536 + value (0x0005)
A2 = value (0x0006)
Totalizer or accumulated flow rate = (A1 * 1000 + A2)/1000
e.g.: for a totalizer or accumulated flow rate of 3452.245 m
3
, the user will read
“0 (0x0000)” from register 0x0004; “3452(0x0D7C)” from register 0x0005, and
“245(0x00F5)” from register 0x0006.
Then, the totalizer or accumulated flow rate
= ((0 + 3452) * 1000 + 245) / 1000 = 3452.245.
Baud rate 0x0015
Write Y
Read Y
Description Communication baud rate
Value type UINT 16
Notes
Value=0: 4800; 1: 9600; 2: 19200; 3: 38400.
The default value is 3.
Gas conversion factor 0x0016
Write Y
Read Y
Description Gas conversion factor
Value type UINT 16
Notes
The value is 1000 times the calculated value. The value is used to change the
reference conditions, adjust the system deviation, and calibrations for
different gases.
It is recommended that write protection should be applied after this value
is changed.