User`s manual

Memory cards and batteries Memory card
5 – 8
To remove the memory card during power on
Special relays of the CPU indicate, if a memory card is installed and if it can be removed:
● SM600 = 1: Memory card can be used.
SM600 = 0: Memory card cannot be used.
The special relay SM600 is set by the system, when the memory card is installed and ready
to use.
● SM604 = 1: Memory card is being used.
SM604 = 0: Memory card is not being used.
When accessing the memory card by the CPU module the system sets or resets the special
relay SM604.
● SM605 = 1: Memory card removal/insertion prohibited.
SM605 = 0: Memory card removal/insertion allowed.
SM605 is turned on/off by the user.
● SM609 = 1: Memory card is being removed.
SM609 = 0: Memory card removal prohibited.
SM609 has to be set by the user before removing the memory card and will be reset by the
operating system of the CPU after removing the memory card.
Keep the following sequence when removing the memory card with power supply on:
 Turn off "SM605" if it is on.
 Turn on the special relay "SM609" using the sequence program or the programming device.
 Check the special relays SM600 and SM604 with the programming device, if they are reset.
 Remove the memory card.
NOTE Note that the data in the memory card may be damaged if the above mentioned procedures
are not performed correctly.
Poor insertion of the memory card may result in "ICM.OPE.ERROR". Also, if the CPU mod-
ule operation for an error is set to "Stop" in the Parameters, the CPU module stops its oper-
ation upon the occurrence of "ICM.OPE.ERROR".