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Burkert Type 8605 User Manual

Page 18

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18

Serial Communication

command number
command name

0x03
readcurrentandfourDynamicVariables

request
Command

0x03

Byte count

0

data

-

response
Command

0x03

Byte count

26

Status

2 bytes, device status

data

24 bytes
0 ... 3

current (mA) (float)

5)

4

PV units code

5 ... 8

primary variable (float)

5)

9

SV units code

10 ... 13 secondary variable (float)

5)

14

TV units code

15 ... 18 third variable (float)

5)

19

FV units code

20 ... 23 fourth variable (float)

5)

Description

HART-Universal Command 3.

current Coil current / PV in mA

PV Unit 0x39

hex

„%“

PV

Coil current Process Value PV in %, where I

LO

= 0 % and I

HI

= 100 %

SV Unit 0x39

hex

„%“

SV

Setpoint SP in %, where I

LO

= 0 % and I

HI

= 100 %

TV Unit 0x39

hex

„%“

6)

TV

Controlled Variable CV

FV Unit 0x33

hex

„sec“

6)

FV

Operating time of the device since it was last switched on or reset

(see also „

3.6.3. Codings and units“)

Command 0x03 - ReadCurrentAndFourDynamicVariables

Table 9:

First byte transferred: MSB

5)

As of

6)

firmware version A.04.00.01, before it 0xFB

hex

none

english

Typ 8605