ABB LGR-ICOS GLA531 Series - Computer and Storage

Operating Manual
3KXG165002R4201_2021_04 ABB PROPRIETARY INFORMATION 58
GLA531 Series LGR-ICOS™ Gas Analyzer
Figure 47 DC Solid-State Relay
PC104 Computer Stack and Hard Drive
The PC104 computer stack contains three boards: CPU board on top of the stack, analog signal processing
board in the middle, and digital signal processing board at the bottom. This three-board stack is a one-unit
replacement assembly.
The hard drive contains LGR-ICOS
TM
operating source code and measurement data. Maintenance is required
when the amount of data exceeds capacity. It is recommended to periodically compress and archive files saved
in the hard drive to another storage location.
Figure 48 depicts the PC104 computer stack (left) and the hard disk drive (right).
Figure 48 PC104 Computer Stack and Hard Disk Drive