Production discontinuation of MELSEC

TECHNICAL BULLETIN
[1/7]
[Issue No.] FA-A-0184
[Title] Production discontinuation of MELSEC-Q series ATA card, Q2MEM-8MBA
[Date of Issue] February 2015
[Relevant Models] Q2MEM-8MBA
Thank you for your continued support of Mitsubishi programmable controllers, MELSEC-Q series.
Production of the MELSEC-Q series ATA card, Q2MEM-8MBA, will be discontinued.
1.
Model to be discontinued
Product
Model
Remarks
ATA card
Q2MEM-8MBA
Capacity: 8M bytes
The following lists the CPU modules used in this technical bulletin.
CPU module
Model
High Performance model QCPU
Q02CPU, Q02HCPU, Q06HCPU, Q12HCPU, Q25HCPU
Process CPU
Q02PHCPU, Q06PHCPU, Q12PHCPU, Q25PHCPU
Redundant CPU
Q12PRHCPU, Q25PRHCPU
Universal model QCPU
Q02UCPU, Q03UDCPU, Q03UDECPU, Q04UDHCPU, Q04UDEHCPU, Q06UDHCPU,
Q06UDEHCPU, Q10UDHCPU, Q10UDEHCPU, Q13UDHCPU, Q13UDEHCPU, Q20UDHCPU,
Q20UDEHCPU, Q26UDHCPU, Q26UDEHCPU, Q50UDEHCPU, Q100UDEHCPU
High-speed Universal model QCPU
Q03UDVCPU, Q04UDVCPU, Q06UDVCPU, Q13UDVCPU, Q26UDVCPU
2. Schedule
Transition to made-to-order: September 15, 2016
Order acceptance: Through November 15, 2016
Production discontinuation: December 15, 2016
3. Reason for discontinuation
Some parts of the memory card are now obsolete, and we will have difficulty to maintain our production
system.
4. Repair support
Repair support period: Until December 15, 2023 (for seven years after the discontinuation of production)
5. Alternative models
It is difficult to develop interchangeable products for the above ATA card because some parts of the card are
obsolete and the needs of the card in the market are now declining. Please use an SRAM card
(Q2MEM-1MBS, Q2MEM-2MBS, Q3MEM-4MBS, or Q3MEM-8MBS) or the built-in memory of a CPU
module (program memory, standard RAM, or standard ROM) as an alternative memory device (refer to
Chapter 7).
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[Issue No.] FA-A-0184
6. Recommendable proposals
We recommend the following solutions for the production discontinuation of the Q2MEM-8MBA.
(1) Purchase another or more Q2MEM-8MBA as a spare before the order acceptance date described
in Chapter 2.
(2) Consider replacing a memory device from the Q2MEM-8MBA to an SRAM card or the built-in
memory of a CPU module.
(3) If purchasing a new CPU module, purchase a High-speed Universal model QCPU.
(4) If the CPU module currently-used (High Performance model QCPU, Process CPU, or Universal
model QCPU) accesses the PLC user data file (***.CSV/BIN) stored in the Q2MEM-8MBA by
using the SP.FREAD and SP.FWRITE instructions, replace the CPU module with a High-speed
Universal model QCPU and store the PLC user data file in the SD memory card. Since the
Redundant CPU cannot be replaced with a High-speed Universal model QCPU, purchase
another or more Q2MEM-8MBA as a spare.
7. Alternative products
7.1 Alternative products for each CPU module type
(1) When a High Performance model QCPU, Process CPU, or Redundant CPU*3 is used
The following memory devices are available as alternatives.
Alternative product
Capacity
Q2MEM-8MBA
8M bytes
Built-in memory of a CPU module
Program memory
Standard RAM
SRAM card
Battery backup
Not required
112K to 1008K bytes
64K to 256K bytes
*1
Required
*1
Required
*1
Standard ROM
112K to 1008K bytes
Not required
Q2MEM-1MBS
1M bytes
Required
Q2MEM-2MBS
2M bytes
Required
Q3MEM-4MBS*2
4M bytes
Required
*1 Capacity differs depending on the CPU module used.
*2 This card will be used with a CPU module with a serial number (first five digits) of "16021" or later, which was shipped in February 2014 or
later. The serial number can be checked on the rating plate located on the side of the module.
*3 In a redundant CPU system, an error occurs if different memory devices are used in a control system and a standby system. Please use
the same alternative memory device when performing the replacement.
(2) When a Universal model QCPU is used
The following memory devices are available as alternatives.
Alternative product
Capacity
Q2MEM-8MBA
8M bytes
Built-in memory of a CPU module
Program memory
Standard RAM
SRAM card
80K to 4000K bytes
Battery backup
Not required
*1
128K to 1792K bytes
Not required
*1
*1
Required
Standard ROM
512K to 16384K bytes
Q2MEM-1MBS
1M bytes
Required
Q2MEM-2MBS
2M bytes
Required
Q3MEM-4MBS
4M bytes
Required
Q3MEM-8MBS
8M bytes
Required
*1 Capacity differs depending on the CPU module used.
Not required
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[Issue No.] FA-A-0184
(3) When a High-speed Universal model QCPU is used
If the CPU module currently-used is replaced with a High-speed Universal model QCPU, the following
memory devices will be available as alternatives.
Alternative product
Capacity
Q2MEM-8MBA
8M bytes
Built-in memory of a CPU module
SD memory card
Battery backup
Not required
120K to 1040K bytes
*1
Standard RAM
192K to 1280K bytes
*1*2
Standard ROM
1025.5K to 4102K bytes*1
Not required
NZ1MEM-2GBSD
2G bytes
Not required
NZ1MEM-4GBSD
4G bytes
Not required
NZ1MEM-8GBSD
8G bytes
Not required
NZ1MEM-16GBSD
16G bytes
Not required
Program memory
Not required
Required
*1 Capacity differs depending on the CPU module used.
*2 The use of an extended SRAM cassette increases the standard RAM capacity (up to 8M bytes).
7.2 Files that can be stored in alternative memory devices
(1) When a High Performance model QCPU, Process CPU, or Redundant CPU is used
Files in the Q2MEM-8MBA can be stored in the following alternative memory devices.
: Storable, : Not storable
File
File name and extension
Program
memory
Standard
RAM
Standard
ROM
SRAM card
Parameter
PARAM.QPA




Intelligent function module
parameter
IPARAM.QPA




Program
***.QPG




Device comment
***.QCD




Initial device value
***.QDI




Boot setting file
AUTOEXEC.QBT




Remote password
00000000.QTM




PLC user data
***.CSV/BIN




Label program
PROJINFO.CAB




*1
*1 If the CPU module currently-used (High Performance model QCPU or Process CPU) stores the PLC user data file (***.CSV/BIN) in the
Q2MEM-8MBA, replace the CPU module with a High-speed Universal model QCPU and store the PLC user data file in the SD memory
card. Since the Redundant CPU cannot be replaced with a High-speed Universal model QCPU, purchase another or more Q2MEM-8MBA
as a spare.
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[Issue No.] FA-A-0184
(2) When a Universal model QCPU is used
Files in the Q2MEM-8MBA can be stored in the following alternative memory devices.
: Storable, : Not storable
File
File name and extension
Program
memory
Standard
RAM
Standard
ROM
SRAM card
Parameter
PARAM.QPA




Intelligent function module
parameter
IPARAM.QPA




Program
***.QPG




Device comment
***.QCD




Initial device value
***.QDI




Boot setting file
AUTOEXEC.QBT




Remote password
00000000.QTM




Backup data file
MEMBKUP0.QBP




*1
***.CSV/BIN



Symbolic information
SRCINF**.CAB




Drive heading
QN.DAT




PLC user data

*1 The file can no longer be accessed by using the SP.FREAD and SP.FWRITE instructions. If the CPU module accesses the file stored in
the Q2MEM-8MBA by using these instructions, replace the CPU module with a High-speed Universal model QCPU, and store the file in
the SD memory card.
(3) When a High-speed Universal model QCPU is used
Files in the Q2MEM-8MBA can be stored in the following alternative memory devices.
: Storable, : Not storable
File
File name and extension
Program
memory
Standard
RAM
Standard
ROM
SRAM card
Parameter
PARAM.QPA




Intelligent function module
parameter
IPARAM.QPA




Program
***.QPG




Device comment
***.QCD




Initial device value
***.QDI




Boot setting file
AUTOEXEC.QBT




Remote password
00000000.QTM




Backup data file
MEMBKUP0.QBP




*1
***.CSV/BIN



Symbolic information
SRCINF**.C32




Drive heading
QN.DAT




PLC user data

*1 The file can no longer be accessed by using the SP.FREAD and SP.FWRITE instructions. If the CPU module accesses the file stored in
the Q2MEM-8MBA by using these instructions, store the file in the SD memory card.
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[Issue No.] FA-A-0184
8. Alternative methods
8.1 To use the memory device for boot operation
Please consider either of the following alternative methods.
• Replace the Q2MEM-8MBA with an SRAM card (or an SD memory card when a High-speed Universal
model QCPU is used).
• Move the file used for boot operation to the program memory or standard ROM in the CPU module.
8.2
To use the memory device for storing the PLC user data file (***.CSV/BIN) and access the file
by using the SP.FREAD and SP.FWRITE instructions
(1) When a High Performance model QCPU, Process CPU, Redundant CPU, or Universal model
QCPU is used
Replace the CPU module (High Performance model QCPU, Process CPU, or Universal model QCPU) with
a High-speed Universal model QCPU and store the PLC user data file in the SD memory card. Since the
Redundant CPU cannot be replaced with a High-speed Universal model QCPU, purchase another or more
Q2MEM-8MBA as a spare.
(2) When a High-speed Universal model QCPU is used
Replace the Q2MEM-8MBA with an SD memory card.
8.3 To use the CPU module change function with memory card
When a Universal model QCPU is used, replace the Q2MEM-8MBA with an SRAM card. To hold data in the
SRAM card when it is removed from the CPU module, perform battery backup of the card. If the
battery-backed-up files are to be stored for a long time, read out the files from the SRAM card by using the
programming tool and store them so that the data will not be erased due to running out of battery.
When a High-speed Universal model QCPU is used, replace the Q2MEM-8MBA with an SD memory card.
8.4 To move files, such as setting files and program files, from one CPU module to another
(1) When a High Performance model QCPU, Process CPU, Redundant CPU, or Universal model
QCPU is used
Please consider either of the following alternative methods.
• Replace the Q2MEM-8MBA with an SRAM card.
To hold the data in files, back up the data in the SRAM card using a battery. If the files are to be stored for
a long time, read out the files from the SRAM card by using the programming tool and store them so that
the data will not be erased due to running out of battery.
• Read files from the source CPU module to a personal computer using the programming tool, and store
the files in a medium such as an SD memory card to move them.
Write the files from the personal computer to the destination CPU module using the programming tool.
(2) When a High-speed Universal model QCPU is used
Replace the Q2MEM-8MBA with an SD memory card.
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[Issue No.] FA-A-0184
9. Precautions
To store and use the files in the Q2MEM-8MBA in an alternative memory device, the following setting
changes are required because the memory type (drive number) where the files are stored will change.
9.1 When the storage location of the initial device value file is changed
Check the "Device Initial Value" setting of the "PLC File" tab in PLC parameter. If the memory device in the
"Corresponding Memory" field differs from the actual storage location of the file, change the setting.
9.2 When the storage location of the device comment file is changed
Check the "Comment File Used in a Command" setting of the "PLC File" tab in PLC parameter. If the
memory device in the "Corresponding Memory" field differs from the actual storage location of the file,
change the setting.
9.3 When the storage location of the boot setting file is changed
Check the settings of the "Boot File" tab in PLC parameter. If the memory device in the "Transfer from" field
differs from the actual storage location of the file, change the setting.
9.4 When the storage location of the parameter file is changed
When a High Performance model QCPU, Process CPU, or Redundant CPU is used, the storage location
(parameter-valid drive) of the parameter file is set by the DIP switches. Set the DIP switches, SW2 and SW3,
to the correct storage location of the parameter file.
SW2
SW3
Parameter-valid drive
Off
Off
Program memory
On
Off
SRAM card
Off
On
Flash card/ATA card
On
On
Standard ROM
When a Universal model QCPU is used, the parameter-valid drive is automatically detected. Therefore, no
switch setting change is required.
9.5 When the file storage location is specified in the instruction used in the program
If any of the following instructions is used in the program executed by the High Performance model QCPU,
Process CPU, Redundant CPU, or Universal model QCPU, check if the storage location of the file specified
in the instruction has not been changed. If changed, change the storage location (drive number) in the
instruction as well. (Note that only the drive number "2" can be specified in the SP.FREAD and SP.FWRITE
instructions.)
Instruction
Description
Remarks
QCDSET, QCDSETP
Setting comment file

PLOADP
Loading program from memory card

PSWAPP
Loading and unloading

SP.FREAD, SP.FWRITE
Reading/writing data to/from the PLC user data file
(***.CSV/BIN)
Refer to Section 9.7.
For details, refer to the MELSEC-Q/L Programming Manual (Common Instructions).
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9.6 For data backup when the power is turned off
To use the standard RAM as an alternative memory device, perform battery backup of the CPU module to
hold data when the power is turned off.
Battery backup of the CPU module is also required to use the program memory as an alternative device
when a High Performance model QCPU, Process CPU, or Redundant CPU is used.
To use the SRAM card as an alternative memory device, perform battery backup of the SRAM card to hold
data when the power is turned off.
For details, refer to the QCPU User's Manual (Hardware Design, Maintenance and Inspection).
9.7 When the storage location of the PLC user data file (***.CSV/BIN) is changed
If the PLC user data file (***.CSV/BIN) is stored in the standard ROM, it can no longer be accessed by using
the SP.FREAD and SP.FWRITE instructions.
If the CPU module currently-used (High Performance model QCPU, Process CPU, or Universal model
QCPU) accesses the PLC user data file (***.CSV/BIN) stored in the Q2MEM-8MBA by using the SP.FREAD
and SP.FWRITE instructions, replace the CPU module with a High-speed Universal model QCPU and store
the file in the SD memory card. Since the Redundant CPU cannot be replaced with a High-speed Universal
model QCPU, purchase another or more Q2MEM-8MBA as a spare.
If the CPU module cannot be replaced for any reason, purchase another or more Q2MEM-8MBA as a spare
before the order acceptance date described in Chapter 2.