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MELSEC-Q
3 SPECIFICATIONS
3.5.5 Special register (ED9000 to ED9127)
The special register is a register which has its use determined by the QD51 (-R24).
Data are stored by the QD51 (-R24)'s OS, so in a BASIC program, use the special
variable W@ to read and use the stored data.
Buffer Memory
Address as
seen from the
CPU
Special
Register No.
Name
Content
Details of Contents
Related
Special Relay
Related
Special
Register
&H2400 ED9000
Number of
Errors
0 to 8
• The number of errors registered in the
QD51 (-R24) is stored.
EM9000
ED9001 to
ED9008
&H2401 to
&H2408
ED9001 to
ED9008
Error Code
0: Normal
Other than 0:
Error Code
• Error codes are stored in order in ED9001 to
ED9008.
• If more than 8 error occur, the error codes
are not stored.
• For error codes, refer to the Programming
Manual (Commands).
EM9000 ED9000
• The line No. of errors detected by BASIC
are stored.
• Correspondence between the error code
and the special register for storing the line
numbers is as shown below.
For Error Code
Storage
For Line Number
Storage
ED9001 ED9009
ED9002 ED9010
ED9003 ED9011
ED9004 ED9012
ED9005 ED9013
ED9006 ED9014
ED9007 ED9015
ED9008 ED9016
&H2409 to
&H2410
ED9009 to
ED9016
Error Line No.
0:
No Line No.
1 to FFFF:
Line No.
EM9000
ED9001 to
ED9008
• The setting number of the mode setting
switch is stored.
&H2414
ED9020
Run Mode
0 to 4
• 0, 1
• 2, 3
• 4
: Run Mode
: Multitask Debug Mode
: Programming Mode
Содержание QD51
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