Yokogawa JUXTA M Series Digital Limit Alarms MVTK Instrukcja Użytkownika Pobierz pdf (Strona 21)

3-7

IM 77J04J11-01E 1st Edition : 2006.08.25-00

BRD Reads I relays on a bit-by-bit basis

● Function

Reads the ON/OFF statuses of a sequence of contiguous I relays by the specified number

of bits, starting at a specified I relay number.

• The number of bits to be read at a time is 1 to 256.

• 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 checksum, do not include the 2-byte

checksum element in the command.

● Command/Response (for normal operation)

Command

element

STX Address

number

(ADR)

CPU

number

0 BRD ETX CRI relay

number

Comma

or space

Number

of bits

(n)

Checksum

OK d1 d2 d3 ETX CRResponse

element

STX Address

number

(ADR)

CPU

number

• • • dn Checksum

Responses 0 and 1 indicate OFF and ON respectively.

Number of Bytes

• • •

1 2 2 2111 1 2 1 1

Number of Bytes 1 2 2 1 3 5 1 3 2 1 1

dn: read data of the specified number of bits (n=1 to 256)

dn=0 (OFF)

dn=1 (ON)

● Example:

Reading the status of alarm 1 of the M Series with address number 01.

The following command reads the status of alarm 1 (

I0001) of address number 01.

[Command]

[STX]01010BRDI0001,00191[ETX][CR]

The following response is returned with respect to the above command. (Alarm 1 is ON.)

[Response]

[STX]0101OK18D[ETX][CR]

Alarm has been ON since 1 was returned.

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 69 70

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