INFICON BCG450 ATM to Ultra-High Vacuum Triple Gauge User Manual
Page 37
tina40e1-b (2011-04)
37
For commands to the gauge, six defined strings are used:
Byte
No.
Command: 0
1
2
3
4
2)
Set the unit mbar on the display
1)
3
0x10
0x8E
0
0x9E
Set the unit Torr on the display
1)
3
0x10
0x8E
1
0x9F
Set the unit Pa on the display
1)
3
0x10
0x8E
2
0xA0
Storage of current unit
3)
3
0x20
0x07
-
0x27
Switch degas on (switches itself off after 3 min.)
3 0x10 0xC4
1
0xD5
Switch degas off (before 3 min.)
3 0x10 0xC4
0
0xD4
Read software version
4)
3
0x00
0xD1
-
0xD1
Reset 3
0x40
0
0
0x40
Switch emission on
5)
3
0x40
0x10
1
0x51
Switch emission off
5)
3
0x40
0x10
0
0x50
Emission Control Mode automatic (AUTO)
6)
3
0x10
0x8A
1
0x8B
Emission Control Mode manual (MAN)
6)
3
0x10
0x8A
0
0x8A
1)
Only required for gauges with display (353-552 and 353-553). Transmitted data
is not affected by this setting.
2)
Only low order byte of sum (high order byte is ignored).
3)
Current unit is stored in power-failure-safe NV RAM.
4)
Response value in byte no. 6 of transmitted string.
5)
On/off switching requirements
→ 29.
6)
Defines the Emission Control Mode (
→ 29)
AUTO = emission on/off automatically controlled by the gauge
MAN = emission on/off controlled via interfaces
Admissible input strings