Yokogawa JUXTA VJ Series Limit Alarms Uživatelský manuál stáhnout pdf (Strana 21)

3-7

IM 77J01J11-01E

3.2.3 BRR Reading I Relays on a Bit-by-bit Basis in a Random

Order

● Function

Reads the ON/OFF statuses of I relays by the specified number of bits in a random order.

• The number of bits 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 1 2 213 2 5 1 5 1

Command

Element

STX Address

number

(ADDRESS)

CPU

number

0 BRR Number

of bits

(n)

I relay

number 1

Comma

or space

I relay

number 2

Comma

or space

• • • I relay

number n

Checksum ETX CR

• • •

5211

Number of Bytes • • • 112 2211 2 11

Response

Element

STX Address

number

(ADDRESS)

CPU

number

OK d1 d2 CR• • • dn Checksum ETX

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

Command (continued)

dn: reads data of the specified number of bits (n=1 to 32)

dn=0(OFF)

dn=1(ON)

030209E.EPS

● Example:

Reading the statuses of alarms-1 and -2 of the VJ Series signal conditioner with communi-

cation address-1

The following command reads the statuses of alarm-1 (

I0009) and alarm-2 (I0010) at

communication address-1.

[Command]

[STX]01010BRR02I0009,I001082[ETX][CR]

With respect to the above command, the ON and OFF responses are returned for alarms-1

and -2 respectively.

[Response]

[STX]0101OK10BD[ETX][CR]

Alarm-1 has been ON.

030210E.EPS

3rd Edition : Oct. 15, 2007-00

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