BASI BFM921, Руководство пользователя

Страница: 38 / 69

Electromagnetic flowmeter BFM921 BASI
38 Operation manual
Command „FCE0<cr>” switches current loop test “Off”. If query „FCE?<cr>” is sent, flowmeter returns
response in format „0<cr>”.
Current loop state reading
RCE?
Response contains state of current loop.
Response is:

0 - current loop is closed

1 - current loop is disconnected
Example:
If query „RCE?<cr>” is sent, flowmeter returns response in format „0<cr>“ for closed current loop.
5.2.2.3.2 Frequency output
Frequency output mode setting
SFM(?)<CPD> { 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 }
Following modes can be set:

0 Off

1 Positive Flow

2 Negative Flow

3 Absolute Flow

4 On Positive

5 On Negative

6 On In

7 On Out

8 Dose On

9 Dose Off

10 On<F2

11 On>F2

12 Fixed
M921 confirms execution with string „Ok<cr>”.
Example:
Command „SFM1<cr>” sets mode “Positive flow” for frequency output. If query „SFM?<cr>” is sent,
flowmeter returns response in format „1<cr>”.
Frequency output constant Qf setting
SFO(?)<DNPD>
Command sets constant Qf, which represents flowrate value for frequency 1000 Hz.
<DNPD>
It represents required flowrate in actual units. M921 confirms execution with string „Ok<cr>”. In case
of query
BF
M921 returns set value in actual units.
Example:
Command „SFO10.5<cr>” sets value Qf to 10.5. After query „SFO?<cr>” flowmeter returns string
„10.500000<cr>”.