77BS-Device Supervisor Object 7BChapter Four: Operation
74
Manufacturer’ Name
Attribute ID #05 reports the manufacturer of the DMA capacitance manometer using an ASCII
string of up to 20 characters. The manufacturer of the unit is always reported as MKS
Instruments, identified with the ASCII string “MKS Instruments”
Manufacturer’s Model Number
Attribute ID #06 reports the m
odel number of the instrum
ent with an ASCII string of up to 20
characters. The capacitance manometer is represented in the response with the ASCII string
“DMA”
Software Revision Level
Attribute ID #35 reports the version of m
icroprocessor code in the instrume
nt. The format of the
attribute is “XXX”
The initial firmware revision level is “1.001”
Hardware Revision Level
Attribute ID #08 designates the hardware version of y
our device, with an ASCII string of up to 5
characters. The revision level is identified with the letters from “A” to “Z.” The initial hardware
revision is “A”
Manufacturer’s Serial Number Identity Object
Attribute ID #09 reports the serial num
ber of the device with an ASCII string up to 30 characters.
Device Configuration
Attribute ID #10 reports the device configuration bey
ond the m
odel num
ber in the number:
DMAXXXXXXXXXXX
Device Status
Attribute ID #11 represents the current state of the device. Its value changes as the state of the
device changes. The following values are defined:
Table 43: Device Status Attribute Values
Attribute Value
Device State
0 Undefined
1 Self Testing
2 Idle
3 Self Testing Exception
4 Executing
5 Self Testing
6 Critical Fault
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