Yokogawa JUXTA VJ Series Limit Alarms Instrukcja Użytkownika Pobierz pdf (Strona 25)

3-11

IM 77J01J11-01E

3.2.7 WRR Reading D Registers/I Relays on a Word-by-word

Basis in a Random Order

● Function

Reads the statuses of specified registers on a word-by-word basis in a random order.

• The number of words to be read at a time is 1 to 32.

• For the format of response in the event of failure, see subsection 3.1.2.

• The command shown below includes the checksum function. When performing

communication without a checksum, do not include the 2-byte checksum command

element in the command.

● Command/Response (for normal operation)

Number of Bytes 1221325151

Command

Element

STX Address

number

(ADDRESS)

CPU

number

0 WRR Number

of words

(n)

number 1

Comma

or space

number 2

Comma

or space

Command (continued)

1 2 224 4 4 2 11Number of Bytes

• • •

Response

Element

STX Address

number

(ADDRESS)

CPU

number

OK dddd1 dddd2 ETX CR• • • ddddn Checksum

030217E.EPS

The response is returned in a 4-digit character string (0000 to FFFF) in a hexadecimal pattern.

Reads data of the specified number of words

ddddn is a character string in a hexadecimal pattern.

n=1 to 32

5211

• • •

number n

ETX CR• • • Checksum

● Example:

Reading the input and output values of the VJ Series signal conditioner with communica-

tion address-1

The following command reads the input value (

D0004) and output value (D0008) at com-

munication address-1.

[Command]

[STX]01010WRR02D0004,D00088F[ETX][CR]

With respect to the above command, the input value 500 (01F4 (HEX)) and output value

500 (

01F4 (HEX)) are returned as responses (50.0% is expressed as 500).

[Response]

[STX]0101OK01F401F4FC[ETX][CR]

500 in decimal

(input is 50.0 %)

500 in decimal

(output is 50.0 %)

3rd Edition : Oct. 15, 2007-00

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