Yokogawa JUXTA VJ Series Limit Alarms Manual do Utilizador descarregar pdf (Página 39)

4-3

IM 77J01J11-01E

4.2.2 Reading Parameters

Parameters from the PLC are read in the VJ Series signal conditioners in the following

configuration. (The maximum number of data items to be read is 64.)

040204E.EPS

Data of parameter no. (n)

Data of parameter no. (a) Data of parameter no. (b)

Number of Bytes 11 221111

Number of BCD Digits 22 1 4422111

Command Element Address

number

(ADDRESS)

Parameter

number

CPU

number

(0D)

(0A)

0 0 00 Number of

read data

(n)

21111

1422111

(0D)

(0A)

5th

digit

0 +/-0 ddddn

Number of Bytes 112

Number of BCD Digits 224

Response Element Address

number

(ADDRESS)

Parameter

number

CPU

number

211

14111

5th

digit

0 +/-0 dddd1

211

14111

5th

digit

0 +/-0 dddd2

• • •

● Example of reading the output value (D register 0008) of the VJ Series

signal conditioner with communication address-1

[Command]

01010008000000010D0A

The output value 500 (BCD code) is returned as a response to the above command (50.0%

is expressed as 500).

[Response]

010100080000005000D0A

3rd Edition : Oct. 15, 2007-00

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