Delta Electronics Programmable Logic Controller DVP-PLC - Manual (Page 56)

2 Functions of Devices in DVP-PLC
DVP-PLC Application Manual
2-28
0
1
2
3
4
5
X11
X10
6
2
0
1
2
3
4
5
A-phase X0
B-phase X1
PV in C251
Contact Y0, C251
Counting up Counting down
2.8 Numbering and Functions of Registers [D], [E], [F]
2.8.1 Data register [D]
A data register is for storing a 16-bit datum of values between -32,768 to +32,767. The highest bit is “+” or “-"
sign. Two 16-bit registers can be combined into a 32-bit register (D + 1; D of smaller No. is for lower 16 bits). The
highest b it is “+” or “-” sign and it can store a 32-bit datum of values between -2,147,483,648 to +2,147,483,647.
ES/EX/SS series MPU:
General purpose D0 ~ D407, 408 points
Latched D408 ~ D599, 192 points. Fixed to be latched.
Special purpose D1000 ~ D1143, 144 points. Some are latched.
Data register D
Index register E, F E, F, 2 points
Total
744 points
SA/SX/SC series MPU:
General purpose D0 ~ D199, 200 points. Fixed to be non-latched.
Latched
D200 ~ D999, D2000 ~ D4999, 3,800 points.
Can be modified to be non-latched by setting up parameter.
Special purpose D1000 ~ D1999, 1,000 points. Some are latched.
Data register D
Index register E, F E0 ~ E3, F0 ~ F3, 8 points
Total
5,000
points
File register K0 ~ K1,599, MPU 1,600 points. Fixed to be latched.
1,600
points
EH/EH2/SV series MPU:
General purpose
D0 ~ D199, 200 points. Can be modified to be latched by setting up
parameters.
Latched
D200 ~ D999, D2000 ~ D9999, 8,800 points. Can be modified to be
non-latched by setting up parameters.
Special purpose D1000 ~ D1999, 1,000 pints. Some are latched.
Data register D
Index register E, F E0 ~ E7, F0 ~ F7, 16 points.
Total
10,000
points
File register K0 ~ K9,999, MPU 10,000 points. Fixed to be latched.
10,000
points
There are five types of registers:
1. General purpose register: When PLC goes from RUN to STOP or the power of the PLC is switched off, the data
in the register will be cleared to “0”. When M1033 = On and PLC goes from RUN to STOP, the data will not be
cleared, but will still be cleared to “0” when the power is off.