Delta DVP04TC-H2 Temperature/Digital Curve, Trial Operation & Troubleshooting, ™ LED Display

2.CR#1: The working mode of the 4 channels in the sensors selected by the temperature measurement module. There are 2 modes (J-type and K-type) for each channel which can be set up separately. For example, if the user needs to set up CH1: mode 0 (b2 ~ b0 = 100); CH2: mode 1 (b5 ~ b3 = 001); CH3: mode 0 (b8 ~ b6 = 000) and CH4: mode 1 (b11 ~ b9 = 001), CR#1 has to be set as H0208 and the higher bits (b12 ~ b15) have to be reserved. The default value = H’0000.

3.CR#2 ~ CR#5: The times to average the temperatures measured at CH1 ~ CH4. Range: K1 ~ K20. Default = K10. Please note that when PLC MPU writes in the average time by TO/DTO instruction, please use the rising/falling edge contact detection instructions (LDP/LDF…) in case you may not obtain the correct average temperature.

4.CR#6 ~ CR#9: The average Celsius temperature measured at CH1 ~ CH4 obtained from the average time settings in CR#2 ~ CR#5. For example, if the average time is set as 10, the content in CR#6 ~ CR#9 will be the average of the most recent 10 temperature signals in Celsius at CH1 ~ CH4.

5.CR#10 ~ CR#13: The average Fahrenheit temperature measured at CH1 ~ CH4 obtained from the average time settings in CR#2 ~ CR#5. For example, if the average time is set as 10, the content in CR#10 ~ CR#13 will be the average of the most recent 10 temperature signals in Fahrenheit at CH1 ~ CH4.

6.CR #14 ~ CR #17: Displaying the present temperature in Celsius at CH1 ~ CH4

7.CR#18, CR#23, CR#28 and CR#29 are reserved.

8.CR #19 ~ CR #22: Displaying the present temperature in Fahrenheit at CH1 ~ CH4

9.CR #24 ~ CR #27: The adjusted OFFSET value of CH1 ~ CH4. Range: -1,000 ~ +1,000. Unit: 0.1°C. Temperature measured by the module – OFFSET value = Actual temperature displayed.

10.CR #30: Error status (see the table below)

Error status	Content	b15 ~ b8	b7	b6	b5	b4	b3	b2	b1	b0
Abnormal power supply	K1(H’1)		0	0	0	0	0	0	0	1
Scale exceeds the range
or wiring to empty external	K2(H’2)		0	0	0	0	0	0	1	0
contact
Incorrect mode setting	K4(H’4)		0	0	0	0	0	1	0	0
OFFSET/GAIN error	K8(H’8)	reserved	0	0	0	0	1	0	0	0
Hardware malfunction	K16(H’10)		0	0	0	1	0	0	0	0
Abnormal digital range	K32(H’20)		0	0	1	0	0	0	0	0
Incorrect average times	K64(H’40)		0	1	0	0	0	0	0	0
setting
Instruction error	K128(H’80)		1	0	0	0	0	0	0	0

Note: Each error status is determined by the corresponding bit (b0 ~ b7) and there may be more than 2 errors occurring at the same time. 0 = normal; 1 = error

11.CR#31: The setting of RS-485 communication address. Range: 01 ~ 255. Default = K1.

12.CR#32: The setting of RS-485 communication speed. b0: 4,800bps; b1: 9,600bps (default); b2: 19,200bps; b3:

38,400bps; b4: 57,600bps; b5: 115,200bps; b6 ~ b13: reserved; b14: high/low bit exchange of CRC checksum

(only valid in RTU mode); b15: switching between ASCII mode and RTU mode.

13.CR#33: b0 ~ b11: For returning the CR settings to default settings.

b12 ~ b15: ERR LED definition. Default: b12 ~ b15 = 1111.

14.CR#34: Firmware version of the model.

15.CR#35 ~ CR#48: Parameters for system use.

16.CR#0 ~ CR#34: The corresponding parameter address H’4096 ~ H’40B8 are for users to read/write data by RS-485 communication. When using RS-485, the user has to separate the module with MPU first.

a.Communication baud rate: 4,800/9,600/19,200/38,400/57,600/115,200 bps.

b.Modbus ASCII/RTU communication protocol: ASCII data format (7-bit, Even bit, 1 stop bit (7, E, 1)); RTU data format (8-bit, Even bit, 1 stop bit (8, E, 1)).

c.Function: H’03 (read register data); H’06 (write 1 word datum into register); H’10 (write many word data into register).

d.Latched CR should be written by RS-485 communication to stay latched. CR will not be latched if written by MPU through TO/DTO instruction.

Temperature/Digital Curve

Temperature measurement modes

J-type thermocouple		K-type thermocouple
Digital output		Digital output
+7,000(12,920)		+10,000(18,320)
	Measured		Measured
	temperature input		temperature input
-100 C	+700 C	-100 C	+1,000 C
(-148 F)	(+1,292 F)		(-1,832 F)
-1,000(-1,480)		-1,000(-1,480)
R & S-type thermocouple		T-type thermocouple
Digital output		Digital output
+17,000(30,920)		+3,500(6,620)
	Measured		Measured
	temperature input		temperature input
-10 C	+1,700 C	-100 C	+350 C
(-14 F)	(+3,092 F)	(-148 F)	(+662 F)
-100(-140)		-1,000(-1,480)

Trial Operation & Troubleshooting

™LED Display

1.When the module is powered for the first time, POWER LED will be on and ERROR LED will be on for 0.5 second. After this, A/D LED will start to flash.

2.When the power supply is normal, POWER LED will be on and ERROR LED should be off. When the power supply is less than 19.5V, ERROR LED will keep being on until the power supply goes higher than 19.5V.

3.When controlled by RS485, RS-485 LED on the module will flash after receiving the RS-485 instruction.

4.When the input or output value exceeds the upper bound or falls below the lower bound after conversion, ERROR LED will flash.

™Program Example

M1000		FROM	K0	K0	D0	K1
M1002
		TO	K0	K2	D10	K4
	= H6403 D0	FROM	K0	K6	D20	K4
		FROM	K0	K10	D24	K4
		FROM	K0	K14	D30	K4
		FROM	K0	K19	D34	K4
		END

Read the model name from K0 and see if it is DVP04TC-H2: H’6403

Set the average times in CH1 ~ CH4 as D10 ~ D13.

If D0 = H’6403, read the average temperature (°C) measured in CH1 ~ CH4 from CR#6 ~ CR#9 and store the 4 data in D20 ~ D23.

Read the average temperature (°F) measured in CH1 ~ CH4 from CR#10 ~ CR#13 and store the 4 data in D24~ D27.

Read the average temperature (°C) measured in CH1 ~ CH4 from CR#14 ~ CR#17 and store the 4 data in D30~ D33.

Read the average temperature (°F) measured in CH1 ~ CH4 from CR#19 ~ CR#22 and store the 4 data in D34~ D37.

Relevant Instructions

API		F R O M			Read CR data in special modules
78	D			P
Instruction			: No. of special module (m1 = 0 ~ 7)		: CR# in special module to be read
Explanation			: Device for storing read data		: Number of data to be read at a time

Read CR#24 of special module No. 0 into D0 and CR#25 into D1. Only 2 groups of data are read at a time (n = 2).

Program	X0
Example
		FROM K0	K24	D0	K2

API		T O			Write CR data into special module
79	D			P
Instruction			: No. of special module (m1 = 0 ~ 7)		: CR# in special module to be written
Explanation			: Data to be written into CR		: Number of data to be written at a time

Use 32-bit instruction DTO to write the content in D11 and D10 into CR#7 and CR#6 of special module No. 0. Only 1 group of data is written in at a time (n = 1).

Program

ExampleX0

DTO K0 K6 D10 K1

Operand rules

1.: The No. of special modules connected to PLC MPU. No. 0 is the module closest to te MPU. Maximum 8 modules are allowed to connected to a PLC MPU and they will not occupy any I/O points.

2.: CR#. CR (control register) is the 49 16-bit memories built in the special module, numbered in decimal as #0 ~ #48. All operation status and settings of the special module are contained in the CR.

3.FROM/TO instruction is for reading/writing 1 CR at a time. DFROM/DTO instruction is for reading/writing 2 CRs at a time.

Higher 16 -bit	Lower 16- bit
CR #10	CR #9	Designated CR number

4.Number of groups “n” to be transmitted: n = 2 in 16-bit instructions and n = 1 in 32-bit instructions mean the same.

		Designated device	Designated CR		Designated device Designated CR
Remarks		D0		CR #5	D0	CR #5
		D1		CR #6	D1	CR #6
		D2		CR #7	D2	CR #7
		D3		CR #8	D3	CR #8
		D4		CR #9	D4	CR #9
		D5		CR #10	D5	CR #10
		16-bit instruction when n=6			32-bit instruction when n=3
	M1083 for switching instruction modes in EH2 series models

1.When M1083 = Off, during the execution of FROM/TO instruction, all external or internal interruption subroutines will be forbidden. The interruptions are allowed only after FROM/TO instruction finishes its execution. FROM/TO instruction can also be used in an interruption subroutine.

2.When M1083 = On and an interruption signal occurs during the execution of FROM/TO instruction, the interruption will be processed first (with a 100us delay) and the execution of FROM/TO will be stopped. After the interruption subroutine finishes its execution, the program will jump to the next instructio of FROM/TO. FROM/TO cannot be used in an interruption subroutine.

The content of this instruction sheet may be revised without prior notice. Please consult our distributors or download the most updated version at http://www.delta.com.tw/industrialautomation