INFICON BPG402-SD ATM to Ultra-High Vacuum Gauge (DeviceNet) - Manual (Page 19)

tira46e1 (2004-11) BPG402-SDv1.cp
19
This attribute specifies what value will be held in Value for states other than Exe-
cuting. The purpose of this mechanism is to allow other devices, who may be using
this Value to transition to (or remain in) a safe state in the event of this device
transitioning to a FAULT, IDLE, or ABORT state. The following values are defined:
Attribute Value State
0 Zero
1 Full Scale
2 Hold Last Value
3 Use Safe Value
For Safe State set to Use Safe Value, this attribute holds the value to which the
Value attribute will be set for object instance states other than Executing.
16 Bits are used as Sensor Faults. Bits 8
… 16 are mapped to the Exception Detail
Alarm 1, Bits 0
… 7 are mapped to the Device Exception Detail Alarm 0.
Data Component Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Sensor Alarm Byte 0 0 0 0 0 0 0 0 0
Sensor Alarm Byte 1
0 0 0 0 0 0
Electronics
Failure
0
16 Bits are used as Sensor Warnings. Bits 8 … 16 are mapped to the Exception
Detail Warning 2, Bits 0 … 7 are mapped to the Device Exception Detail Warning 1.
Data Component Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Sensor Alarm Byte 0 0 0 0 0 0 0 0 0
Sensor Alarm Byte 1
0 0 0 0 0 0
Electronics
Warning
0
Safe State
Safe Value
Sensor Alarm
Sensor Warning