Mitsubishi Electric melsec q00ujcpu - Page 116

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CHAPTER5 MEMORIES AND FILES USED FOR CPU MODULE
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5.1 Memories Used for CPU Module 5.1.1 Memory composition and storable data
(2) Data that can be stored in each memory
Table5.1 provides the data that can be stored in each memory.
: Required data, : Storable data, : Data that cannot be stored
*1: A drive number is used to specify a memory to be written/read by the external device using a sequence program or MC protocol.
Since the memory name is used to specify the target memory by GX Developer, the drive number needs not to be considered.
*2: Store the intelligent function module parameters in the same drive with the parameters.
When they are stored in different drives, the intelligent function module parameters do not become valid.
*3: A program stored in the standard ROM cannot be executed.
Store the program to the program memory before execution.
*4: To execute a program stored in the memory card, make the setting in the Boot file tab of the PLC parameter dialog box.
*5: The device comments cannot be read by instructions in a sequence program.
*6: Reading from a sequence program requires several scans.
*7: Only each one of file register, one local device, and/or sampling trace file can be stored in the standard RAM.
*8: For the number of storable file register points, refer to Section 9.7.
*9: A sequence program allows reading only. No data can be written from the sequence program.
*10: Data can be written or read with the following instructions.
•SP.FREAD (batch-reads data from the specified file in the memory card.)
•SP.FWRITE (batch-writes data to the specified file in the memory card.)
*11: Set an area used by the system. ( Section 5.1.2(2)(b))
Table5.1 Storable data and storage location
Item
CPU module built-in memory
Memory
card (
RAM)
Memory card (ROM)
File name and
extension
Remarks
Program
memory
Standard
RAM
Standard
ROM
SRAM card Flash card
ATA
card
Drive 0
*1
Drive 3
*1
Drive 4
*1
Drive 1
*1
Drive 2
*1
Parameter
PARAM.QPA 1 data/drive
Intelligent function
module parameter*
2
IPARAM.QPA 1 data/drive
Program
*3 *4 *4 *4
***.QPG -
Device comment
*5 *6 *6 *6 *6
***.QCD -
Initial device value
***.QDI -
Device data ***.QST -
File register
*7*8 *9
***.QDR -
Local device
*7
***.QDL
1 data/CPU
module
Sampling trace file
*7
***.QTD -
Error history data ***.QFD -
Device data storage file
DEVSTORE.
QST
-
Backup data file
MEMBKUP0.
QBP
-
Programmable controller
user data
*10
***.*** -
User setting system area
*11
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