General HART interface data
Point-to-point wiringNetwork topology
HART, baud rate 1.2 kbit/s
Device class: "Actuator"
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FSK (Frequency Shift Key) modulated to 4 – 20 mA setpoint signal
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Input impedance: 250 Ω.The impedances of other HART devices connected (parallel or in series)
must be within the HART specification.
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Point-to-point wiring
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Signal range: 4 – 20 mA
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Working range: 2 – 22 mA
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Minimum operation voltage: 7 V (at 22 mA)
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Integrated reverse polarity protection
Device category: “Current Output”:
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FSK (Frequency Shift Key) modulated to 4 – 20 mA position feedback signal
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Input impedance: 40 kΩ.The impedances of other HART devices connected (parallel or in series)
must be within the HART specification.
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Point-to-point or multidrop wiring
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Current output active, short-circuit proof. No further external power supply permitted
Communication signal
Refer to HART specificationHART cable specification
Internal power supply of HART interface via actuator controls (apart from HART supply voltage, no other
supply required)
Power supply
Manufacturer name: AUMA
Manufacturer ID: 0x607C
HART protocol revision: 7.4
Number of device variables: 12
Model name: AUMATIC AC 01.2/ACExC 01.2
Device type code: 0xE1FD
Device identification
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Universal Commands
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Common Practice Commands:
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Command 33 (Read Device Variables)
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Command 40 (Enter/Exit Fixed Current Mode)
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Command 42 (Perform Device Reset)
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Command 45 (Trim Loop Current Zero)
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Command 46 (Trim Loop Current Gain)
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Command 50 (Read Dynamic Variable Assignments)
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Command 79 (Write Device Variable)
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Command 95 (Read Device Communication Statistics)
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Device Specific Commands:
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Command 128 (Write Operation Command)
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Command 131 (Read Software Version)
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Command 132 (Reset to Factory Default)
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Command 133 (Reset Operational Data)
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Command 134 (Reset HART Configuration)
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Command 160 (Read Parameter)
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Command 161 (Write Parameter)
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Command 162 (Read Process Data)
Supported HART commands
82
SA 07.2 – SA 16.2/SAR 07.2 – SAR 16.2 Control unit: electronic (MWG)
Technical data AC 01.2 Non-Intrusive HART