2 commands and responses – INFICON BPG400 ATM to Ultra-High Vacuum Gauge User Manual

Page 40

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tina03e1-b (2004-02) BPG400 v1.om

The following table lists all permissible commands of the RS485 host and the cor-
responding responses of a BPG400 SR during data transfer.

Depending on the operation mode selected (BPG or RIG mode) the BPG400-SR
responses may differ. Syntax errors will produce an error message.

For each command listed, a programming example is given in the last column
where:

T:

Command data transmitted by the host

R:

Data received by the host (from BPG400-SR), in BPG and RIG mode

R

BPG

:

Data received by the host (from BPG400-SR), only in BPG mode

R

RIG

:

Data received by the host (from BPG400-SR), only in RIG mode

Host Command

Host
Command syntax

BPG mode

Response syntax

RIG mode

Response syntax

Programming example and remarks

Read pressure
measured value

#aaRD CR

*aa_x.xxEsyy CR

→ BPG mode

T: #02RD CR
R: *02_5.36E–04 CR

R

RIG

: *02_9.99E+09 CR

If gauge is switched off and during the first 3
seconds after gauge is switched on.

Read status

#aaRS CR

*aa_status CR

→ BPG mode

T: #02RS CR
R

BPG

: *02_BPG_ST_5 CR

R

RIG

: *02_00_ST_OK CR

Set address (offset)

#aaSAoo CR

*aa_PROGM_OK CR

→ BPG mode

T: #02A3_CR
R *02_PROGM_OK CR

New address becomes effective after power is
cycled or a reset command is executed.
If the user sets the offset address to a value so
that the operating device address would be
>0x3F

Hex

, the offset address is set to "0" by the

device itself.

Set pressure unit

#aaSUunit CR

*aa_PROGM_OK CR

Error message

T: #02SUPASCAL CR
R

BPG

: *02_PROGM_OK CR

New unit becomes effective after power is
cycled or a reset command is executed.

R

RIG

: ?02_SYNTX_ER CR

Read pressure unit

#aaRU CR

*aa_unit CR

Error message

T: #02RU CR
R

BPG

: *02_PASCAL CR

R

RIG

: ?02_SYNTX_ER CR

Set filament

#aaSFn CR

For future use

*aa_PROGM_OK CR

T: #02SF2 CR
R: *02_PROGM_OK CR

Set overpressure

#aaSOx.xxEsyy CR

For future use

*aa_PROGM_OK CR

T: #02SO5.00E–02 CR
R: *02_PROGM_OK CR

Set degas off

#aaDG0 CR

*aa_PROGM_OK CR

→ BPG mode

T: #02DG0 CR
R: *02_PROGM_OK CR

Set degas on

#aaDG1 CR

*aa_PROGM_OK CR

→ BPG mode

T: #02DG1 CR
R: *02_PROGM_OK CR

When the gauge is switched off, a degas on
command will produce an error message:
R: ?02_COMM_ERR CR

If pressure is >7.20E–06 mbar, the degas on
command is disabled

Read emission

#aaSES CR

*aa_xxFA_EM CR

→ BPG mode

T: #02SES CR
R: *02_

_20MA_EM CR

Read version

#aaVER CR

*aa_VERv.vv CR

→ BPG mode

T: #02VER CR
R: *02_VER_1.04 CR

Table continued on following page

4.9.3.2 Commands and

Responses

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