Rockwell-automation 1794-APBDPV1 FLEX I/O PROFIBUS Adapter User Manual Manual do Utilizador descarregar pdf (Página 140)

Publication 1794-UM064B-EN-P - May 2014

Additional HART Protocol Information 127

Common Practice Commands

11 Read unique identifier

associated with tag

0…5 Tag (A) 0…11 As Command 0 —

12 Read message — None — 0…23 Message (32 characters) (A)

13 Read tag descriptor,

date

— None — 0…5 Tag (8 characters) (A)

6…17 Descriptor (16

characters)

(A)

18…20 Date (D)

14 Read PV sensor

information

— None — 0…2 Sensor serial number —

3 Units code for sensor

limits and minimum span

4…7 Upper sensor limit (F)

8…11 Lower sensor limit

12…15 Minimum span

15 Read output

information

— None — 0 Alarm select code —

1 Transfer function code

2 PV/range limits code

3…6 Upper range value

7…10 Lower range value

11…14 Damping value (seconds) (F)

15 Write protect code

16 Private-label distributor

code

16 Read final assembly

number

— None — 0…2 Final assembly number —

17 Write message 0…23 Message (32 characters) (A) — As in command —

18 Write tag descriptor,

date

0…5 Tag (8 characters) (A) — As in command —

6…17 Descriptor (16

characters)

18…20 Date (D)

19 Write final assembly

number

0…2 Final assembly number — — As in command —

(1)

Bit 2 = protocol bridge device.

(2)

Bit 0 = multisensor device, bit 1 = EEPROM control required.

(3)

Truncated after last supported variable.

Universal Commands

Command Data in Command Data in Reply

# Function Byte Data Type Byte Data Type

1 2 ... 135 136 137 138 139 140 141 142 143 144 145 ... 152 153

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