Introduction To Cpu Devices; Device Table - Delta DVP-ES3 Series Operation Manual

D V P - E S 3 S e r i e s O p e r a t i o n Ma n u a l

5.1 Introduction to CPU Devices

This section describes the values and strings processed by the PLC. It also describes the functions of devices, including
input, output and auxiliary relays, as well as timers, counters, and data registers. The PLC simulates external devices in
the PLC's internal memory, so the word "device" is a generic name that refers to all the internal memory locations in the
PLC. A device can be a bit device or a word device. Bit devices simulate coils, contacts and flags, while word devices
simulate registers.

5.1.1 Device Table

Type
Bit device
_5
Word device
1
Constant*
2
Constant*
3
String*
*1: Constants are indicated by K in the device lists in Chapter 5 and Chapter 6 in the DVP-ES3 Series Programming
Manual. For example, when "K50" appears in the DVP-ES3 Series Programming Manual, enter only the number 50 in
ISPSoft.
*2: Floating-point numbers are indicated by F/DF in the device lists in Chapter 5 and Chapter 6 in the DVP-ES3 Series
Programming Manual, but they are represented by decimal points in ISPSoft. For example, for the floating-point
5 - 2
Device name
Input relay
Output relay
Data register
Auxiliary relay
Special auxiliary relay
Flag
Timer
Counter
32-bit counter
Input relay
Output relay
Data register
Special auxiliary relay
File register
Timer
Counter
32-bit counter
Index register
Decimal system
Hexadecimal system
Single-precision
floating-point number
String
Number of devices
X 256
Y 256
D 48,0000
W 48,0000
M 8192
SM 2048
S 2048
T 512
C 512
HC 256
X 64
Y 64
D 30000
W 30000
SR 2048
FR 65536
T 512
C 512
256（512 words）
HC
10
E
5
16 bits: -32768 to 32767
K
32 bits: -2147483648 to 2147483647
16 bits: 16#0–16#FFFF
16#
32 bits: 16#0–16#FFFFFFFF
-38
F 32 bits: ±1.17549435
"$" 1–31 characters
Range
X0–X377
Y0–Y377
D0.0–D29999.15
W0.0–W29999.15 *
M0–M8191
SM0–SM4095
S0–S2047
T0–T511
C0–C511
HC0–HC255
X0–X63
Y0–Y63
D0–D29999
4
W0–W29999 *
SR0–SR2047
FR0–FR65535
T0–T511
C0–C511
HC0–HC255
E0–E9
4
E10–E14 *
+ 38
to ±3.40282347
4