Delta Electronics DVP04DA-S Leaflet

bps. b0: 4800bps, b1: 9600bps, (factory setting) b2: 19200bps, b3: 38400 bps, b4: 57600 bps, b5:
115200 bps, b6-b13: reserved, b14: exchange low and high byte of CRC check code. (RTU mode
only) b15=0: ASCII mode, b15=1: RTU mode. Communication format: ASCII mode is 7Bit, even bit,
1 stop bit (7 E 1), while RTU mode is 8Bit, even bit, 1 stop bit (8 E 1).

10. CR#33 is used to set the internal function priority. For example: characteristic register. Output

latched function will save output setting to the internal memory before power loss.

11. CR#34 is software version of model type.
12. CR#35~ CR#48 are used for system.
13. The corresponding parameters address H4032~H4063 of CR#0~CR#48 are provided for user to

read/write data via RS-485.

A. Communication baud rate: 4800, 9600, 19200, 38400, 57600, 115200 bps.
B. Communication format: ASCII mode is 7Bit, even bit, 1 stop bit (7 E 1). Communication

format of RTU mode is 8Bit, even bit, 1 stop bit (8 E 1).

C. Function code: 03H—read data from register. 06H—write one WORD to register. 10H—write

multiple WORD to register.

ADJUST D/A CONVERSION CHARACTERISTIC CURVE

5.1

Adjust D/A Conversion Characteristic Curve

Voltage output mode:

Mode 0 of CR#1: GAIN = 5V(2000

LSB

OFFSET=0V (0

LSB

)

Mode 1 of CR#1: GAIN = 6V(2400

LSB

OFFSET=2V (800

LSB

GAIN:

The setting range of voltage output value when
digital input value is K2000 should be
-4V~+20V(-1600

LSB

~+8000

LSB

OFFSET:

The setting range of voltage output value when
digital input value is K0 should be
-5V~+5V(-2000

LSB

~ +2000

LSB

+2000

+4000

10V

OFFSET

GAIN

voltage

output

Digital input

mode 0

mode 1

GAIN－OFFSET: Setting range: +1V~+15V (+400

LSB

~ +6000

LSB

Current output mode

Mode 2 of CR#1: GAIN = 12mA (2400

LSB

OFFSET=4mA (800

LSB

Mode 3 of CR#1: GAIN = 10mA (2000

LSB

OFFSET=0mA (0

LSB

GAIN:

The setting range of current output when digital
input value is K2000 should be -8mA~+40mA
(-1600

LSB

~+8000

LSB

OFFSET:

The setting range of current output when digital
input value is K0 should be -10mA ~+10mA
(-2000

LSB

~+2000

LSB

+2000

+4000

20mA

OFFSET

GAIN

12mA

10mA

4mA

current
output

digital input

mode 3

mode 2

GAIN－OFFSET: Setting range: +2mA~+30mA (+400

LSB

~+6000

LSB

The charts above are D/A conversion characteristic curve of voltage input mode and current input

mode. Users can adjust conversion characteristic curve by changing OFFSET values (CR#18~CR#21)
and GAIN values (CR#24~CR#27) depend on application.

LSB (Least Significant Bit): 1.voltage output: 1

LSB

=10V/4000=2.5mV. 2.current output:

LSB

=20mA/4000=5µA.

5.2 Program Example for Adjusting D/A Conversion Characteristics Curve

Example 1: Setting OFFSET value of CH1 to 0V(=K0

LSB

) and GAIN value is 2.5V(=K1000

LSB

K1000

K24

H10

M1002

K33

K18

Writing H10 to CR#1 of analog output
module#0. Setting CH1 to mode 0
(voltage output 0V~ +10V) and CH2 to
mode 2 (current output 4mA~ +20mA).

Writing H0 to CR#33 and allow CH1 ~
CH4 to adjust characteristic.

When X0 switches from Off to On,
K0

LSB

of OFFSET value will be written

to CR#18 and K1000

LSB

of GAIN value

will be written to CR#24.

Example 2: Setting OFFSET value of CH2 to 2mA (=K400

LSB

) and GAIN value to 18mA (=K3600

LSB

M1002

K33

H18

K19

K25

K400

K3600

Writing H10 to CR#1 of analog output
module#0. Setting CH1 to mode 0
(voltage output 0V~ +10V) and CH2 to
mode 3 (current output 0mA~ +20mA).

Writing H0 to CR#33 and allow CH1 ~
CH4 to adjust characteristic.

When X0 switches from Off to On,
K400

LSB

of OFFSET value will be

written to CR#19 and K3600

LSB

GAIN value will be written to CR#25.

INITIAL PLC START-UP

Lamp display
1. When power is on, POWER LED will be lit and ERROR LED will be lit for 0.5 second.
2. It is normal that POWER LED should be lit and ERROR LED should turn off. When power supply

is lower than 19.5V, ERROR LED will blink continuously till the power voltage is higher than 19.5V.

3. When it connects to PLC MPU in series, RUN LED on MPU will be lit and A/D LED or D/A LED

should blink.

4. After receiving the first RS-485 command during controlling via RS-485, A/D LED or D/A LED

should blink.

5. After converting, ERROR LED should blink if input or output exceeds the upper bound or below

the lower bound.

Program example:

M1000

FROM

END

CMP

H89

INC

D100

ADD

D101

LD=

K4000

RST

H10

M1013

D101

D100

LD=

K4000

RST

D101

D100

Explanation:

Read the data of model type from expansion module K1 and distinguish if the data is H89

(DVP04DA-S model type).

D100 will increase K1 and D101 will increase K5 every second.

When value of D100 and D101 attain to K4000, they will be reset to 0.

If the model type is DVP04DA-S, M1 will be on and set the output mode: CH1 mode to 0, CH2 mode
to 2.

Writing output setting CR#6 and CR#7 to D100 and D101. Analog output will vary with D100 and D101
value.

COMMAND EXPLANATION

API

Adaptive model
ES

FROM

Read special module
CR data

Bit device

Word device

X Y M S K H KnX KnY KnM KnS T C D E F

¼ ¼

¼ ¼ ¼ ¼

¼ ¼

Note: The usage range of operand m

is 0~7.

The usage range of operand m

: ES/EP:

0-48, EH: 0-254.

The usage range of operand n: ES/EP: n=

1~(49-m2), EH: 1~(255-m2).

ES series model doesn’t support pulse

execution command (FROMP, DFROMP).

16-bit command (9 STEPS)

FROM

Continuous
execution

FROMP

Pulse
execution

32-bit command (17 STEPS)

DFROM

Continuous
execution

DFROMP

Pulse
execution

Flag: When M1083 on, it allows enable

the interrupt during FROM/TO.
Refer to following for detail.

Command

Explanation

: the number for special module.

: the number of CR (Control Register) of

special module that will be read.

: the location to save reading data.

: the

data number of reading ONCE.

DVP-series PLC uses this command to read CR data of special module.

: When assign the bit operand, K1~K4 are used for 16-bit and K5~K8 are used for

32-bit.

Please refer the footnote below for calculation the special module number.

Program

Example

Read the content of CR#24 of special module#0 save it to D0 of PLC, and read the
content of CR#25 of special module#0 save it to D1 of PLC. 2 data are read in one
time when n=2.

Command will be executed when X0=ON. Command won’t be executed if X0=OFF
and the content of previous reading data won’t change.

FROM

K24

API

Adaptive model

EP EH

Special module CR
data write in

Bit device

Word device

X Y M S K H KnX KnY KnM KnS T C D E F

¼ ¼

¼ ¼ ¼

¼ ¼ ¼ ¼ ¼

¼ ¼

Note: The usage range of operand m

is 0~7.

The usage range of operand m

: ES/EP:

0-48, EH: 0-254.

The usage range of operand n: ES/EP:

1~(49-m2), EH: 1~(255-m2).

For ES series, it doesn’t support pulse
execution command (TOP, DTOP)

16-bit command (9 STEPS)

Continuous
execution

TOP

Pulse
execution

32-bit command (17 STEPS)

DTO

Continuous
execution

DTOP

Pulse
execution

Flag: When M1083 on, it allows to

enable the interrupt during
FROM/TO. Refer to below for
detail.

Command

Explanation

: the number of special module.

: the number of CR (Control Register) of

special module that will be wrote in.

: the data to write in CR.

: the data

number to write in one time.

DVP-series PLC uses this command to write data into CR of special module.

: When assigning bit operand, K1~K4 can be used for 16-bit and K5~K8 can be

used for 32-bit.

Program

Example

Use 32-bit command DTO, program will write D11 and D10 to CR#3 and CR#2 of
special module#0. It only writes one group of data in one time when=1.

Command will be executed when X0=ON, will not be executed when X0=OFF. The
previous write data won’t be changed.

DTO

Footnote

The rule of command operand

m1: arrangement number of special module. The number of special module
that connects to PLC MPU. The number sequence of special module from the
closest to the furthest of MPU is from 0 to 7. 8 modules is the max and it won’t
occupy I/O point.

m2: the number of CR. There are 49 CR (Control Register) with 16-bit each

built-in memory in the special module. The number of CR uses decimal digital
(#0~#48). All running status and setting values of special module have
included.

FROM/TO command is used to read/write CR data 1pcs at a time, while

DFROM/DTO command is used to read/write CR data 2pcs in one time.

CR #10

CR #9

Upper 16-bit Lower 16-bit

Specified CR number

The number of transmission groups n. The meaning of n=2 of 16-bit

command and n=1 of 32-bit are the same.

D0
D1
D2
D3
D4
D5

CR #5
CR #6
CR #7
CR #8
CR #9
CR #10

D0
D1
D2
D3
D4
D5

CR #5
CR #6
CR #7
CR #8
CR #9
CR #10

Specified device

Specified CR

Specified device Specified CR

16-bit command when n=6

32-bit command when n=3

In ES series models, flag M1083 is not provided. All interrupts (including external or
internal interrupt subroutines) will be disabled when FROM/TO command is
executed. Interrupts will be resumed after FROM/TO command complete. Please be
advised FROM/TO command also can be executed in the interrupt subroutine.

The function of the flag M1083 (FROM/TO mode exchange) provided in EP/EH
series models:

A. When M1083=Off, all interrupts (including external or internal interrupt

subroutines) will be disabled when FROM/TO command is executed. The
Interrupts will resumed after FROM/TO command complete. Please be
advised FROM/TO command can be executed in the interrupt subroutine.

B. When M1083=On, if an interrupt enable occurs while FROM/TO command

are executing, the interrupt FROM/TO command will be blocked till the
requested interrupt finish. Unlike M1080 off situation, FROM/TO command
cannot be executed in the interrupt subroutine.