At a Glance
Automatic and manual accesses are carried out between the Schneider BMX RMS ••••• memory card and Control Expert or the PLC to:
restore a project in the PLC
save the PLC project on the memory card
compare the PLC project and the memory card project
| NOTICE | |
|---|---|
INOPERABLE MEMORY CARD Do not format the memory card with a non-Schneider tool.
The memory card needs a structure to contain program and data. Formatting
with another tool destroys this structure. Failure to follow these instructions can result in equipment damage. | |
Restore Function
The restore function is carried out as follows:
Automatically:
after a power cycle
on a warm start
on a cold start
Manually, using the Control Expert command .
When you insert the memory card in run or stop mode, power cycle to restore the project on the PLC.
If the application contained in the memory card includes the RUN AUTO option, then the PLC will automatically restart in RUN mode with this application as soon as the inserted memory card content is restored to the PLC.
| WARNING | |
|---|---|
UNEXPECTED BEHAVIOUR OF APPLICATION Ensure that the right user application is contained in
the memory card before inserting it into the PLC. Failure to follow these instructions can result in death, serious injury, or equipment damage. | |
Save Function
The save function is carried out as follows:
Automatically, after:
a download, if the memory card is present and not write-protected
online modification, if the memory card is present and not write-protected
detection of a system bit %S66 rising edge
Manually, using the command .
If the memory card is not present or write-protected, the download in Processor memory is allowed but the online modification is not allowed.
Compare Function
You can compare your project with the one contained on the memory card. To do so, use the command .
Memory Card State and Diagnostic
Control Expert and the PLC front panel display the status of the memory card:
Display on |
Icon/LED State |
Description |
|---|---|---|
Status bar at bottom of Control Expert |
|
Project on memory card is different from PLC project. |
|
Memory card is not present on the PLC or is inoperable. |
|
no icon |
Project in memory card is equivalent to PLC project. |
|
LED on bottom of memory card slot |
On |
Access to the memory card is enabled. |
Flashing |
Activity between the memory card and the PLC. |
|
Off |
Access to the memory card is disabled. You can remove the memory card. |
|
CARDERR LED on PLC front panel |
On |
Memory card is missing or memory card is not detected, or project on memory card is different from PLC project. |
Off |
Memory card is detected, and project in memory card is equivalent to PLC project. |
