Rockwell Automation GMLC Reference Manual - Manual (Page 393)

Publication GMLC-5.2 - November 1999
356 Status Blocks
The firmware number contains eight characters, formatted as shown in
the table below.
Show Memory Status
The Show Memory Status type checks the integrity of the stored
application program, the integrity of the power-up values of the setup
parameters, or the size of the current application program and sends the
resulting status to the operator interface serial port.
The motion controllers use a checksum to verify the integrity of memory.
Whenever the contents of memory are changed through normal, proper
methods (downloading an application program, executing the motion
controller’s setup menus, etc.), a new checksum for the appropriate
memory area is calculated and stored with the data.
For Setup Data and Application Program checking, the Memory Status
type re-calculates the checksum and compares it with the previously
stored value to determine whether memory has been corrupted. Memory
status is shown as 0 if the information stored in memory is valid (intact),
and as 1 if the information has been corrupted.
For Program Size checking, the Memory Status type merely displays the
size of the program.
Firmware Numbering System: AAABBC.DE
Field Description Value
AAA Product Number
1394
1394 Turbo
Compact
S Class Integrated/Basic
295
308
303
238
BB Firmware Configuration 00 or 10
C.D Firmware Version 3.0
E Firmware Revision A-Z