Yokogawa JUXTA VJ Series Limit Alarms Manual de usuario descargar pdf (Pagina 27)

3-13

IM 77J01J11-01E

3.2.9 WRM Monitoring D Registers/I Relays on a Word-by-word

Basis

● Function

Reads the information of registers that have been specified in advance by the WRS com-

mand.

• Before executing this command, the WRS command must always be executed to

specify which registers are to be monitored. If no register has been specified, error

code 06 is generated.

• 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 12 213 2 11

Number of Bytes

• • •

12 2244 4 2 11

Command

Element

STX Address

number

(ADDRESS)

CPU

number

Checksum0 WRM ETX CR

Response

Element

STX OK dddd1 dddd2 ETX CRAddress

number

(ADDRESS)

CPU

number

• • • ddddn Checksum

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

Reads data of the number of words specified by the WRS command

ddddn is a character string in a hexadecimal pattern.

n=1 to 32

030223E.EPS

● Example:

When the input value (%) and output value (%) of the VJ Series signal conditioner with

communication address-1 have been specified to be monitored:

The following command monitors the input value (D0004) and output value (D0008) at

communication address-1.

(This command reads the registers specified by the WRS command.)

[Command]

[STX]01010WRME8[ETX][CR]

CPU number: 01

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]0101OK01F401F412[ETX][CR]

3rd Edition : Oct. 15, 2007-00

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