Mitsubishi QD51 User Manual

App - 1 App - 1
MELSEC-Q
A
PPENDI
X
App
APPENDIX
Appendix-1 Comparison of Functions with Previous Modules
A comparison of the QD51 (-R24)'s functions with the functions of previous modules is
shown.
Item AD51H-S3 A1SD51S QD51 QD51-R24
Cpu element 80C186 (15 MHz) V53A (20 MHz)
Arithmetic element None
Programming language
AD51H-BASIC
(Interpreter, compiler)
Number of tasks 8 2
Task start conditions
• Start at power on
• Start by interrupt from the programmable controller CPU (Impossible when compiled programs
are run.)
• Start by start request from another task.
Program
384 k bytes
(16/32/48/64 k bytes
selectable for one task.)
Max. 64 k bytes
(16/32/48/64 k bytes selectable for one task.)
Common memory 8 k bytes
Buffer memory 6 k bytes
Expansion relay (EM) 1024 points
Internal
memory
Expansion register (ED) 1024 points
General input/output
Input: 27 points
Output: 17 points
(8 points: For start from
the programmable
controller CPU)
Input: 27 points
Output: 23 points
(2 points: For task start
from the programmable
controller CPU)
Input: 26 points
Output: 23 points
(2 points: For task start from the programmable
controller CPU)
Memory protection
Yes
(Memory card write
protectable)
Yes
(EEP-ROM write
protectable)
Yes (Flash ROM write protectable)
RS-232 2 channels 2 channels 1 channel
RS-422/485 1 channel
1 channel
Parallel 1 channel
Interfaces
Memory card 2 slots
Clock function None
Power failure protection Yes Yes None
User program in ROM Possible
Impossible
However EEP-ROM is
internal.
Impossible
However, Flash ROM is internal.
Console
• A7PHP • A7HGP • A7LMS
• VG-620 • VT-382
• PC/AT personal computer
• PC/AT personal computer
Multitask debugging Possible (when a debugger is used.)
I/o point share
48 points
(The first 16 points are
open and the last 32
points are special.)
32 points
Slot share 2 slots 1 slot

Mitsubishi QD51 Specifications

General

Brand	Mitsubishi
Model	QD51
Category	Controller
Language	English