PLX3x Series Diagnostics and Troubleshooting
Ethernet and Serial Gateways User Manual
ProSoft Technology, Inc. Page 43 of 218
May 26, 2016
3.3 Gateway Status Data in Upper Memory
The gateway places useful status data in dedicated upper memory locations in its
internal database. The Data Map functionality of the gateway can be used to map
this data into the normal user data range of the gateway’s database (registers 0
through 3999). It can be accessed by remote devices, such as HMIs or
processors. See Using the CommonNet Data Map (page 25).
3.3.1 General Gateway Status Data in Upper Memory
The following table describes the contents of the gateway’s general status data
area.
Operating System Revision (ASCII)
3.3.2 Protocol-Specific Status Data in Upper Memory
The gateway also has upper memory locations for protocol-specific status data.
Information about upper memory addresses where the gateway places status
data for its protocol drivers can be found in the Diagnostics sections of the
protocol chapters:
EIP diagnostics (page 70)
MBTCP diagnostics (page 105)
MBS diagnostics (page 132)
ASCII diagnostics (page 163)
SIE diagnostics (page 181)
PND diagnostics (page 213)