INFICON BPG402-SP ATM to Ultra-High Vacuum Gauge (Profibus) - Manual (Page 32)

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tira47e1 (2005-08) BPG402SPv1.cp
ID Name Structure Data type Bytes Access Store
120 One Of N Status
Extension Simple UINT8 1 1/2_R V
This parameter indicates whether the overrange or underrange of the gauge is
exceeded.
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 0 0 0 0 Underrange
Exceeded
Overrange
Exceeded
Reading
Invalid
If the gauge is operated in its overrange or underrange (p < 5×10 -10 mbar or
p >1000 mbar), the corresponding bit and additionally the bit "Reading Invalid" is
set.
If an error occurs, the bit "Reading Invalid" as well as the corresponding error bits
in Device Block (ID 26, 27, 28 Device Block) are set.
ID Name Structure Data type Bytes Access Store
101 Block Type Simple Octet string 4 2_R N
102 Status Extension Simple UINT8 1 1/2_R V
103 Sensor Alarm Struct Array of 2 bytes 2 1/2_R V
104 Sensor Warning Struct Array of 2 bytes 2 1/2_R V
According to the table in Appendix A, the Block Type ID has the value "13".
This parameter indicates whether the overrange or underrange of the Heat
Transfer Vacuum Gauge device instance (Pirani) is exceeded.
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Reserved Underrange
Exceeded
1)
Overrange
Exceeded 2)
Reading
Invalid
3)
1)
Underrange: The parameter is set to "1", if the pressure value is below the
value defined in ID 45 (Analog Input Function Block Instance 1).
2)
Overrange: The parameter is set to "1", if the pressure value is above the value
defined in ID 44 (Analog Input Function Block Instance 1).
3)
Reading Invalid: The parameter is set to "1", if "Reading Valid" ID 23 (Analog
Input Function Block Instance 1) is set to"0".
If the instance is operated in its overrange or underrange, the corresponding bit
and additionally the bit "Reading Invalid" is set.
If an error occurs, the bit "Reading Invalid" as well as the corresponding error bits
in Device Block (ID 26, 27, 28 Device Block) are set.
This parameter indicates the detectable errors occurring in connection with the
Pirani measuring part.
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Byte 0 0 0 0 0 0 0 0 0
Byte 1 0 0 0 0 0 0 Electronics Failure 1) 0
1)
Electronics Failure includes a sensor error.
The Sensor Alarm bits defined here are copied into the Device Block ID 27 in the
"Device Exception Detail Alarm" range of the Pirani measuring part.
3.3 Transducer Block
3.3.1 One Of N Vacuum Gauge
Transducer Block /
SLOT 1
3.3.1.1 One Of N Status Extension
3.3.2 Heat Transfer Vacuum
Gauge Transducer
Block / SLOT 1 /
Instance 1
3.3.2.1 Block Type ID 101
3.3.2.2 Status Extension ID 102
3.3.2.3 Sensor Alarm ID 103