DVP-ES2-EX2-SS2-SA2-SX2-Operation Manual

2. Programming Concepts
X20
X21
A-phase X0
B-phase X1
C251 present value
3
0
1
2
5
4
3
Counting up
6
5
4
3
Counting down
2
1
0
Y0, C251 contact
2.13 Special Data Register
The types and functions of special registers (special D) are listed in the table below. Care should
be taken that some registers of the same No. may bear different meanings in different series MPUs.
Special M and special D marked with “*” will be further illustrated in 2.13. Columns marked with “R”
refers to “read only”, “R/W” refers to “read and write”, “-“ refers to the status remains unchanged
and “#” refers to that system will set it up according to the status of the PLC. For detailed
explanation please also refer to 2.13 in this chapter.
Special
D
Content
ES2 SS
EX2 2
SA
2
SX
2
OFF
ON
STOP
RUN
RUN
Attrib. Latch Default
-ed
STOP
D1000* SV of program scan ning WDT (Unit: 1ms) ○ ○ ○ ○ 200 - - R/W NO 200
Displaying the firmware version of DVP-PLC
D1001 ○ ○ ○ ○ - - - R NO #
(initial factory setting)
D1002* Program capacity ○ ○ ○ ○ - - - R NO #
Sum of program memory (sum of the PLC internal
D1003 ○ ○ ○ ○ # - - R YES 15872
program memory.
D1004* Syntax check error code ○ ○ ○ ○ 0 0 - R NO 0
D1008* Step address when WDT is ON ○ ○ ○ ○ 0 - - R NO 0
D1009 Number of LV (Low voltage) signal occurrence ○ ○ ○ ○ - - - R YES 0
D1010* Current scan time (Unit: 0.1ms) ○ ○ ○ ○ # # # R NO 0
D1011* Minimum scan time (Unit: 0.1ms) ○ ○ ○ ○ # # # R NO 0
D1012* Maximum scan time (Unit: 0.1ms) ○ ○ ○ ○ # # # R NO 0
D1015*
Value of accumulative high-speed timer
(0~32,767, unit: 0.1ms)
○ ○ ○ ○ 0 - - R/W NO 0
D1018* πPI (Low byte)
○ ○ ○ ○
H’ H’ H’
H’
R/W NO
0FDB 0FDB 0FDB
0FDB
D1019* πPI(High byte)
○ ○ ○ ○
H’ H’ H’
H’
R/W NO
4049 4049 4049
4049
D1020* X0~X7 input filter (unit: ms) 0~20ms adjustable ○ ○ ○ ○ 10 - - R/W NO 10
Counting mode selection (Double frequency/ 4
D1022 times frequency) for AB phase counter (From X0, ○ ○ ○ ○
X1 input)
4 - - R/W NO 4
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