Delta Electronics DVP02DA-S Leaflet

8. CR#31 is used to set RS-485 communication address. The setting range is from 01 to 254. The

factory setting is K1.

9. CR#32 is used to set RS-485 communication baud rate: 4800, 9600, 19200, 38400, 57600, 115200

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. (only for RTU
mode) b15=0: ASCII mode, =1: RTU mode.

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~H4062 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 into register.

10H—write multiple WORD into 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#22~CR#23)
and GAIN values (CR#28~CR#29) depend on application.

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

LSB

=10V/8000=2.5mV. 2.current input:

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

K28

H18

M1002

K33

K22

Writing H18 into CR#1 of analog output
module#0. Setting CH2 to mode 3
(current output -20mA~ +20mA).

Writing H0 into CR#33 and allow CH2 to
adjust characteristics.

When X0 switches from OFF to ON,
K0

LSB

of OFFSET value will be written to

CR#22 and K1000

LSB

of GAIN value will

be written to CR#28.

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

LSB

) and GAIN value to 18mA (=K3600

LSB

K3600

K29

H10

M1002

K33

K23

K400

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

Writing H0 into CR#33 and allow the
adjust characteristic of CH1 and CH2.

When X0 switches from OFF to ON,
K400

LSB

of OFFSET value will be written

to CR#23 and K3600

LSB

of GAIN value

will be written to CR#29.

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. Normal run: 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 supply 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 by RS-485, A/D LED or D/A LED

should blink.

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

lower bound.

Program example:

M1000

FROM

END

CMP

H49

INC

D100

ADD

D101

K4000

RST

H10

K10

M1013

D101

D100

K4000

RST

D101

D100

Explanation:

Reading the data of model type from expansion module K1 and check to see if the data is H49

(DVP-02DA-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.

For DVP-02DA-S model, M1 will be on and set the output mode: CH1 mode to 0, CH2 mode to 2.

Writing output setting CR#10 and CR#11 to D100 and D101. Analog output will vary with D100 and
D101 value.

Command Explanation

API

Adaptive model

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 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

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

Command

Explanation

: the module number you are probing.

: the number of Controlled Registers

to be read.

: the data register location for storing data.

: the number of CRs

to read at one time.

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

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

for 32-bit.

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

Program

Example

Read the content of CR#24 and CR#25 of module#0 and save it into D0 and D1,

2pcs data are read in one time when n=2.

The command will be executed when X0=ON. When X0=OFF, nothing will occur and

the stored data has no change.

FROM

API

Adaptive model

Special module CR
data write

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: n=

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

Command

Explanation

: the module number you are probing.

: the number of Controlled

Registers that will be written to.

: the data to write.

: the number of CRs

to write to one time.

DVP-series PLC uses this command to write data into Controlled Registers of

special modules.

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

used for 32-bit.

Program

Example

Using the 32-bit command DTO. The program will write D11 and D10 into CR#3

and CR#2 of special module#0. DTO only allows one group of data to be written at
a time (n=1).

Command is executed when X0=ON, command won’t be executed when X0=OFF,

and the stored data will have no change.

DTO

Footnote

The rules for adding multiple special modules to a Main Processing Unit:

m1: The maximum number of special modules attached to an MPU is 8. The

order of module closest to the MPU is 0, and the module furthest from the
MPU is 7.

m2: The number of Controlled Registers (CR) built in is 49. (#0~#48).

FROM/TO command read/write 16-bit CR data in one command, while

DFROM/DTO command to read/write 32-bit CR data in one command.
Example below:

Upper 16-bit Lower 16-bit

Assigned CR numer

(n=2 for 16-bit command and n=1 for 32-bit are equal controlled registers used).

D0
D1
D2
D3
D4
D5

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

Assigned
Equipment

Assigned
CR

Assigned
Equipment

Assigned
CR

16-bit command when n=6

32-bit command when n=3

In ES series models, flag M1083 is not provided. When FROM/TO command is

executed, all interrupts (including external or internal interrupt subroutines) will be
disabled. All interrupts will be executed after FROM/TO command is completed.
Besides, 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:

1. 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.

2. 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.