Inserting Or Removing An Extended Sram Cassette; Insertion Procedure; Removal Procedure - Mitsubishi Electric MELSEC iQ-R Series User Manual

4.3
Inserting or Removing an Extended SRAM
Cassette
Insert an extended SRAM cassette to the CPU module as needed.

Insertion procedure

Insert an extended SRAM cassette while the programmable controller is powered off.
(1)
(2)
Precautions
• The availability of the extended SRAM cassette differs depending on the CPU module used. For the availability, refer to the
performance specifications of the extended SRAM cassette. ( Page 31 EXTENDED SRAM CASSETTE)
• When the extended SRAM cassette is inserted or removed, all the data such as devices and the file register stored in the
device/label memory are erased. Back up the data in the programmable controller before replacing the cassette.
• If the capacity of the extended SRAM cassette differs before and after the replacement, the ERROR LED of the CPU
module may flash. But, it is not an error. Change the capacity setting in the CPU parameters. (Refer to step 5 above.)
The extended SRAM cassette for the Universal model QCPU (Q4MCA-MBS) cannot be used.

Removal procedure

Remove the extended SRAM cassette while the programmable controller is powered off.
1.
Read the data on the device/label memory from the CPU module, and save it in advance using the engineering tool.
(When the extended SRAM cassette is removed, all of the data on the device/label memory are erased.)
2.
Power off the programmable controller.
3.
Remove the CPU module from the base unit, and open the cassette cover located on the side of the CPU module.
4.
Hold the top and bottom of the tab of the extended SRAM cassette, and pull the cassette straight out of the connector.
5.
Close the cover, and mount the CPU module back on the base unit.
6.
Power on the programmable controller.
7.
Set the "Extended SRAM Cassette Setting" in "CPU Parameter" to "Not Mounted".
1.
Open the cassette cover (1) located on the side of the CPU
module.
2.
Hold the top and bottom of the tab (2) of an extended SRAM
cassette (with the notched edge facing to the right), and insert
the cassette straight into the connector. After inserting the
cassette, check that it is inserted completely.
3.
Close the cover, and mount the CPU module on the base unit.
4.
Power on the programmable controller.
5.
Set the capacity of the inserted cassette to "Extended SRAM
Cassette Setting" in "CPU Parameter" using the engineering
tool.
[CPU Parameter]  [Memory/Device Setting]  [Device/Label
Memory Area Setting]  [Cassette Setting]  [Extended
SRAM Cassette Setting]
6.
Using the engineering tool, check that SM626 (Extended
SRAM cassette insertion flag) is on.

4.3 Inserting or Removing an Extended SRAM Cassette

4 START-UP PROCEDURE
4
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