Mitsubishi QJ71MB91 User Manual

App - 6
Appendix 2 A Series Modules
Appendix 2.3 Utilization of existing programs
APPENDICES
(3) Buffer memory
There is no compatibility in buffer memory assignment between the QJ71MB91 and A
Series modules.
Create a new sequence program.
: Compatible : Partially changed : Incompatible
* 1 The MODBUS device assignment parameter setting area and setting contents are different
between the QJ71MB91 and A Series modules.
Modify the sequence program, or make the setting again on GX Configurator-MB.
TableApp.7 Comparison of buffer memories
Buffer memory address
Buffer memory name
Compatibility Precautions for replacement
AJ71UC24-S2
A1SJ71UC24-R2-S2
A1SJ71UC24-R4-S2
0000H (0) Mode setting status storage area
On the QJ71MB91, 0C00
H to 0C04H (3072
to 3076) are used.
0001H (1) Station No. setting status storage area
0002H (2) CH1 side error response code storage area -
0003H (3) CH1 side detailed error code storage area
Check Error log 0CFE
H to 0DFFH (3326 to
3583).
0004H (4) CH2 side exception code storage area -
0005H (5) CH2 side detailed error code storage area
Check Error log 0CFE
H to 0DFFH (3326 to
3583).
0006H (6) CH1 side detailed LED status storage area
On the QJ71MB91, some data are partially
added.
0007H (7) CH2 side detailed LED status storage area
0008H (8)
CH1 side detailed LED clear request storage
area
0009H (9)
CH2 side detailed LED clear request storage
area
000AH (10) Error status read device code Check the specified device code value.
000BH (11) Head error status read device No. -
000CH (12) Computer link function FC value setting Not used on the QJ71MB91.
000DH to 000FH
(13 to 15)
System area (use prohibited)
-
-
0010H to 0023H
(16 to 35)
MODBUS device assignment parameter (Coil)
On the QJ71MB91, 900
H to 9FFH (2304 to
2559) are used.
*1
0024H to 002FH
(36 to 47)
System area (use prohibited)
-
-
0030H to 0043H
(48 to 67)
MODBUS device assignment parameter
(Holding register)
On the QJ71MB91, 900
H to 9FFH (2304 to
2559) are used.
*1
0044H to 0DEFH
(68 to 3567)
User free area
On the QJ71MB91, 5000
H to 5FFFH
(20480 to 24575) are used.
0DF0H to 0DFFH
(3568 to 3583)
System area (use prohibited)
-
-

Mitsubishi QJ71MB91 Specifications

General

Brand	Mitsubishi
Model	QJ71MB91
Category	Controller
Language	English