Yokogawa JUXTA VJ Series Limit Alarms Uživatelský manuál stáhnout pdf (Strana 23)

3-9

IM 77J01J11-01E

3.2.5 BRM Monitoring I Relays on a Bit-by-bit Basis

● Function

Reads the ON/OFF statuses of I relays that have been specified in advance by the BRS

command.

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

specify which I relays are to be monitored. If no relay 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

Command

Element

STX 0 BRM ETX CRAddress

number

(ADDRESS)

CPU

number

Checksum

• • •

Number of Bytes 12 22111 1 2 11

Response

Element

STX OK d1 d2 d3 ETX CRAddress

number

(ADDRESS)

CPU

number

• • • dn Checksum

The response is “0” when the status is OFF or “1” when ON.

dn: registers data of the number of bits specified by the BRS command (n=1 to 32)

dn=0(OFF)

dn=1(ON)

030213E.EPS

● Example:

When the burnout and alarms-1 and -2 of the VJ Series signal conditioner with communica-

tion address-1 have been specified to be monitored:

The following command monitors the statuses of burnout (

I0004) and alarm-1 (I0009) and

alarm-2 (

I0010) at communication address-1.

(This command reads the statuses of the I relays specified by the BRS command.)

[Command]

[STX]01010BRMA3[ETX][CR]

With respect to the above command, the ON and OFF statuses of the I relays are returned

as responses.

[Response]

[STX]0101OK000EC[ETX][CR]

All are in OFF statuses.

030214E.EPS

3rd Edition : Oct. 15, 2007-00

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