Endress+Hauser Topcal S CPC310, Руководство по эксплуатации

Страница: 106 / 176

Commissioning
106
7.7 HART commands
7.7.1 Universal commands
Command No.
HART command/access type Command data
(numeric data in decimal form) Response data
(numeric data in decimal form)
0 Read unique device identifier
Access type = Read none The device identifier provides information on the device
and manufacturer; it cannot be altered.
The response consists of a 12-byte device ID:
• Byte 0: Fixed value 254
• Byte 1: Manufacturer ID: 17 = E+H
• Byte 2: Device type ID:
152 = CPM153
• Byte 3: Number of preambles
• Byte 4: Rev. no. universal commands
• Byte 5: Rev. no. device-spec. commands
• Byte 6: Software revision
• Byte 7: Hardware revision
• Byte 8: Additional device information
• Byte 9...11: Device identification
1 Read primary value
Access type = Read none • Byte 0: HART unit ID of the primary value
• Byte 1...4: Primary value
2 Read the primary value as a
current in mA and percentage of
the set measuring range
Access type = Read none • Byte 0...3: Current current of current output 1 (=
primary value) in mA
• Byte 4...7: Percentage of the set measuring range
3 Read the primary value as a
current in mA and four dynamic
process variables
Access type = Read none 24 bytes are sent as a response:
• Byte 0-3: Current of current output 1 (= primary
value) in mA
• Byte 4: HART unit ID of the primary value
• Byte 5...8: Primary value
• Byte 9: HART unit ID of the temperature
• Byte 10...13: Temperature
• Byte 14...24: Not assigned
6 Set HART short-form address
Access type = Write Byte 0: Desired address (0...15)
Factory setting: 0
With an address >0 (multidrop mode), the current output
1 of the primary value is fixed at 4 mA. Any current
simulation is terminated. • Byte 0: Active address
11 Read the unique device identifier
using the TAG
Access type = Read Byte 0-5: Tag name
The tag can be set using command 18. The first six digits
of the user tag that can be set at the device are used as the
HART tag name. The device identifier provides information on the device
and manufacturer; it cannot be altered.
The response consists of a 12-byte device ID if the given
TAG matches the one saved in the device:
• Byte 0: Fixed value 254
• Byte 1: Manufacturer ID: 17 = E+H
• Byte 2: Device type ID:
152 = CPM153
• Byte 3: Number of preambles
• Byte 4: Rev. no. universal commands
• Byte 5: Rev. no. device-spec. commands
• Byte 6: Software revision
• Byte 7: Hardware revision
• Byte 8: Additional device information
• Byte 9-11: Device identification
12 Read user message
Access type = Read none • Byte 0-23: Current user message
You can write the user message using command 17.
13 Read tag, tag description and date
Access type = Read none • Byte 0-5: Tag name
• Byte 6-17: TAG description
• Byte 18-20: Date
You can write the tag, tag description and date using
command 18.