Delta Electronics DVP04DA-S Adjust D/A Conversion Characteristic Curve, Initial PLC START-UP

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.

5 ADJUST D/A CONVERSION CHARACTERISTIC CURVE

5.1Adjust D/A Conversion Characteristic Curve

Voltage output mode:

10V				Mode 0 of CR#1: GAIN = 5V(2000LSB),
		mode 1			OFFSET=0V (0LSB)
				Mode 1 of CR#1: GAIN = 6V(2400LSB),
			mode 0		OFFSET=2V (800LSB).
				GAIN:	The setting range of voltage output value when
6V	GAIN
5V					digital input value is K2000 should be
voltage				OFFSET:	-4V~+20V(-1600LSB~+8000 LSB).
output					The setting range of voltage output value when
2V					digital input value is K0 should be
0		+2000	+4000		-5V~+5V(-2000LSB~ +2000 LSB).
	OFFSET			GAIN－OFFSET: Setting range: +1V~+15V (+400LSB ~ +6000 LSB).

Digital input

Current output mode

	20mA				Mode 2 of CR#1: GAIN = 12mA (2400LSB),
			mode 2			OFFSET=4mA (800LSB).
					Mode 3 of CR#1: GAIN = 10mA (2000LSB),
			mode 3			OFFSET=0mA (0LSB).
	10mA	GAIN			GAIN:	The setting range of current output when digital
	12mA					input value is K2000 should be -8mA~+40mA
current						(-1600LSB~+8000LSB).
output					OFFSET:	The setting range of current output when digital
	4mA					input value is K0 should be -10mA ~+10mA
						(-2000LSB~+2000LSB).
0
		OFFSET +2000		+4000 GAIN－OFFSET: Setting range: +2mA~+30mA (+400LSB

digital input ~+6000LSB).

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

6	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	K1	K0	D0	K1
		CMP	H89	D0	M0
M1013
		INC	D100
		ADD	D101	K5	D101
LD=	K4000	D100	RST	D100
LD=	K4000	D101	RST	D101
M1		TO	K1	K1	H10	K1
M1		TO	K1	K6	D100	K2
		END

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.

7 COMMAND EXPLANATION

API Read special module Adaptive model

API		TO			Special module CR			Adaptive model
79	D			P	data write in			ES		EP EH
	Bit device			Word device		F 16-bit command (9 STEPS)
	X Y M S K H KnX KnY KnM KnS T C D				E					Pulse
m1			¼ ¼			TO	Continuous	TOP
							execution			execution
m2			¼ ¼
S			¼ ¼ ¼ ¼ ¼ ¼ ¼ ¼ ¼ ¼ ¼ 32-bit command (17 STEPS)
n			¼ ¼			DTO	Continuous	DTOP		Pulse
	Note: The usage range of operand m1 is 0~7.						execution			execution
		The usage range of operand m2: ES/EP:				Flag: When M1083 on, it allows to
		0-48, EH: 0-254.					enable the interrupt during
		The usage range of operand n: ES/EP:					FROM/TO. Refer to below for
		1~(49-m2), EH: 1~(255-m2).					detail.
		For ES series, it doesn’t support pulse
		execution command (TOP, DTOP)
Command			: the number of special module.			: the number of CR (Control Register) of
Explanation			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			Use 32-bit command DTO, program will write D11 and D10 to CR#3 and CR#2 of
Example			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.
				X0
				DTO	K0	K2	D0	K1

The rule of command operand

Footnotem1: 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.

Upper 16-bit Lower 16-bit

CR #10 CR #9 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.

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.

78 D	FROM	CR data	ES EP EH
	P

Specified device Specified CR

Specified device Specified CR

LSB (Least Significant Bit): 1.voltage output: 1LSB=10V/4000=2.5mV. 2.current output: 1LSB=20mA/4000=5µA.

5.2 Program Example for Adjusting D/A Conversion Characteristics Curve

Example 1: Setting OFFSET value of CH1 to 0V(=K0LSB) and GAIN value is 2.5V(=K1000LSB).

Bit device	Word device
X Y M S K H KnX KnY KnM KnS T C D		E	F
m1	¼ ¼
m2	¼ ¼
D	¼ ¼ ¼ ¼ ¼ ¼	¼	¼
n	¼ ¼

16-bit command (9 STEPS)

Continuous		Pulse
FROM execution	FROMP	execution
32-bit command (17 STEPS)
DFROM Continuous DFROMP Pulse

D0	CR #5
D1	CR #6
D2	CR #7
D3	CR #8
D4	CR #9
D5	CR #10

D0	CR #5
D1	CR #6
D2	CR #7
D3	CR #8
D4	CR #9
D5	CR #10

M1002	K1	K1	H10	K1
TO

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

Note: The usage range of operand m1 is 0~7. The usage range of operand m2: ES/EP: 0-48, EH: 0-254.

execution execution

Flag: When M1083 on, it allows enable the interrupt during FROM/TO.

16-bit command when n=6

32-bit command when n=3

TO	K1	K33	H0	K1
X0	K1	K18	K0	K1
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,

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).

Refer to following for detail.

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.

TO K1 K24 K1000 K1

K0LSB of OFFSET value will be written to CR#18 and K1000LSB of GAIN value will be written to CR#24.

Command	: the number for special module.	: the number of CR (Control Register) of
Explanation	special module that will be read.	: the location to save reading data.	: the

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

Example 2: Setting OFFSET value of CH2 to 2mA (=K400 LSB) and GAIN value to 18mA (=K3600LSB).

data number of reading ONCE.

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

subroutines) will be disabled when FROM/TO command is executed. The

Interrupts will resumed after FROM/TO command complete. Please be

M1002	K1	K1	H18	K1
TO
TO	K1	K33	H0	K1
X0	K1	K19	K400	K1
TO
TO	K1	K25	K3600	K1

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, K400LSB of OFFSET value will be written to CR#19 and K3600LSB of GAIN value will be written to CR#25.

: 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	Read the content of CR#24 of special module#0 save it to D0 of PLC, and read the
Example	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.

X0

FROM K0 K24 D0 K2

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.