Mitsubishi MELSEC Q Series User Manual

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7.1 Memory of C Controller Module
7.1.2 System memory
7
MEMORIES AND FILES HANDLED BY C CONTROLLER
MODULE
(4) Memory capacities and necessity of formatting
The following shows capacities of memories used for the C Controller module and
whether formatting is necessary or not.
* 1 When the C Controller module has returned to the default setting in the hardware self-diagnosis
mode, format the standard ROM as necessary. ( Section 5.10)
* 2 For formatting of the CompactFlash card, refer to the manual of the CompactFlash card used.
7.1.2 System memory
The system memory stores the C Controller module's OS (operating system), system
software, VxWorks image files ( Section 10.2.6), etc.
The system memory is controlled by the following drive name.
POINT
When debugging the user program using Tornado, make sure that the VxWorks
image files in the system memory of the C Controller module are identical with
those in the development environment (personal computer). ( Section
10.2.2, 10.2.6 (1)(b))
Remark
The system memory data (file) are used by the system of the C Controller module.
It need not be used (or referred to) in the user program.
Table7.3 Memory capacities and necessity of formatting
Memory name Memory capacity Formatting
Standard ROM 6M bytes *1
Work RAM 32M bytes Not necessary
Battery-backed-up RAM 128k bytes Not necessary
CompactFlash card
Depends on the capacity of the
CompactFlash card installed.
*2
Table7.4 System memory and drive name
Memory name Drive name Remarks
System memory built in C Controller module /SYSTEMROM Read only

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English