INFICON BPG402-Sx ATM to Ultra-High Vacuum Gauge - Manual (Page 30)

30
tina46e1-a (2010-03) BPG402.om
No error
(green background illumination)
Pirani sensor error
(red background illumination)
Bayard-Alpert sensor error
(red background illumination)
EEPROM error
(red background illumination)
Internal data communication failure
(red background illumination)
What to do in case of problems → 42.
The built-in RS232C interface (all BPG402 versions) allows transmission of digital
measurement data and instrument conditions as well as the setting of instrument
parameters.
Caution
Caution: data transmission errors
If the gauge is operated with the RS232C interface and a fieldbus in-
terface at the same time, data transmission errors may occur.
The gauge must not be operated with the RS232C interface and
DeviceNet or Profibus at the same time.
The interface works in duplex mode. A nine byte string is sent continuously without
a request approx. every 6 ms.
Commands are transmitted to the gauge in a five byte input (receive) string.
• Data
rate 9600 Baud (set value)
• Byte 8 data bits
1 stop bit
• Handshake no
• Parity
bit none
Error Display
4.9 RS232C Interface
4.9.1 Description of the
Functions
Operational parameters