Delta Electronics DVP04PT-H2 Trial Operation & Troubleshooting, Temperature/Digital Curve

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2.CR#1, CR#10, CR#11, CR#16, CR#17, CR#22, CR#23, CR#28 and CR#29 are reserved.

3.CR#2 ~ CR#5: The times to average the temperatures measured at CH1 ~ CH4. Range: K1 ~ K20. Default = K10. Please note that the average times set in CR#2 ~ CR#5 need to be written in only once.

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#12 ~ CR#15: 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#12 ~ CR#15 will be the average of the most recent 10 temperature signals in Fahrenheit at CH1 ~ CH4.

6.CR #18 ~ CR #21: Displaying the present temperature in Celsius at CH1 ~ CH4

7.CR #24 ~ CR #27: Displaying the present temperature in Fahrenheit at CH1 ~ CH4

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

Fahrenheit temperature measurement mode

Digital output

+11,120

+5,560

Measured temperature input

-328 F

+1,112 F

-3,280

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

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

Program

module No. 0. Only 1 group of data is written in at a time (n = 1).

Example

 

 

X0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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.

Error status Abnormal power supply

Scale exceeds the range or wiring to empty external contact

Incorrect mode setting OFFSET/GAIN error Hardware malfunction Abnormal digital range Incorrect average times setting

Instruction error

Content

b15 ~ b8

K1(H’1)

 

K2(H’2)

 

K4(H’4)

 

K8(H’8)

reserved

K16(H’10)

 

K32(H’20)

 

K64(H’40)

 

K128(H’80)

 

b7

b6

b5

b4

b3

b2

b1

b0

0

0

0

0

0

0

0

1

0

0

0

0

0

0

1

0

0

0

0

0

0

1

0

0

0

0

0

0

1

0

0

0

0

0

0

1

0

0

0

0

0

0

1

0

0

0

0

0

0

1

0

0

0

0

0

0

1

0

0

0

0

0

0

0

 

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 series connected with PLC MPU, the RUN LED on the MPU will be on and A/D LED will flash.

4.

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

5.

When the input or output value exceeds the upper bound or falls below the lower bound after conversion,

 

ERROR LED will flash.

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

 

 

 

 

D0

 

CR #5

 

 

 

D0

 

 

 

CR #5

 

 

 

 

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

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

10.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.

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

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

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

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

14.CR#0 ~ CR#34: The corresponding parameter address H’4064 ~ H’4086 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

Celsius temperature measurement mode

Digital output

+6000

+3000

Measured temperature input

-200 C

+600 C

-2000

™ Program Example

M1000

FROM

K0

K0

D0

K1

 

 

 

 

 

 

 

 

 

 

M1002

 

 

 

 

 

 

 

 

 

 

TO

K0

K2

D10

K4

 

 

 

 

 

 

= H' 6402 D0

 

 

FROM

K0

K6

D20

K4

 

 

 

 

 

 

 

 

 

 

 

FROM

K0

K12

D24

K4

 

 

 

 

 

 

 

 

 

 

FROM

K0

K18

D30

K4

 

 

 

 

 

 

 

 

 

 

FROM

K0

K24

D34

K4

 

 

 

 

 

 

 

 

 

 

END

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Read the model name from K0 and see if it is DVP04PT-H2: H’6402

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

If D0 = H’6402, 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#12 ~ CR#15 and store the 4 data in D24~ D27.

Read the average temperature (°C) measured in CH1 ~ CH4 from CR#18 ~ CR#21and store the 4 data in D30~ D33.

Read the average temperature (°F) measured in CH1 ~ CH4 from CR#24 ~ CR#27 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

 

 

 

 

 

 

 

 

 

 

 

Remarks

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

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Contents Introduction SpecificationsControl Registers Relevant Instructions Trial Operation & TroubleshootingTemperature/Digital Curve