ProSoft Technology 5228-DFNT-HART - Manual (Page 17)

ProLinx-HART ♦ ProLinx Gateway Functional Overview
HART Master with Analog I/O Driver Manual
ProSoft Technology, Inc. Page 17 of 104
October 13, 2011
2.2 Functional Specifications - HART Analog
The HART Analog Protocol exists in 4 and 8 channel implementations. This driver can be
configured on an individual channel basis to operate as a HART Master Station and
supports all the available HART commands including Universal, Common Practice and
Device Specific Commands. Each HART channel is independently configured to interface
with the internal database in the module.
The auto-poll mode allows the module to automatically collect data from each HART
instrument on the channel and store the data in the module’s database without the use of
user commands. The module automatically generates HART commands 0, 3, 13, 14 and
15.
General Parameters
Internal Database 4000 registers (words) available
Communication parameters Number of HART Preambles: 2 to 50
Enable Handheld: Y or N
Primary Master: Y or N
Configurable Parameters per Channel Auto-Poll Enable
Short / Long Address Retries
Retries After Error
Poll Time After Error
Number of Commands
Slave List Error Pointer
HART Driver
Command List Up to 100 command per channel, each fully configurable
for function, slave address, register to/from addressing and
word count for Floating Point or Integer Data
Status Data Error codes returned by the HART protocol available on an
individual command basis. In addition, a slave status list is
maintained per active channel.
Polling of command list User configurable polling of commands, including disabled,
continuous, on change of data (write only) and dynamically
user or automatic enabled.
Isolated HART Analog Input Specifications
Input Range Current: 4 to 20mA with HART
Resolution 16bits
Input Filter First Order Sync: 10 Hz
Current Input Resistance 247.6 ohms +/- 1%
Open circuit detection time 1/2 second maximum
Over current +/-40mA continuous, maximum
Common Mode Noise Rejection 105dB
Calibrated Accuracy @ 25°C 4 to 20 mA: 0.05% of reading
Input Isolation Voltage 2500 V RMS per UL 1577, transformer isolated
24V DC Isolation Voltage 1500 VDC
HART ® is a registered trademark of the HART Communication Foundation