ProSoft Technology ProLinx-HART Especificaciones Pagina 30

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HART ProLinx Gateway Configure the Gateway
HART Master Driver Manual
Page 30 of 119 ProSoft Technology, Inc.
July 7, 2009
3.3.7 Auto-Poll Code
P, M or N
This parameter sets the auto-poll mode of the channel. If the parameter is set to
P, the module will automatically poll device 0 in point-to-point mode. If the
parameter is set to M, the module will automatically poll devices 1 to n (n=value
of parameter Max Device Count). If the parameter is set to N, the auto-polling
option will be disabled and only commands in the command list will be utilized for
the channel. In the auto-poll mode, the module will automatically execute HART
commands 0, 3, 13, 14 and 15.
3.3.8 Auto-Poll DB Address
0 to 3700
This parameter sets the starting address for the data obtained by the auto-poll
feature. Each device on a channel requires 50 words in the database. The data
area selected must not overlap any portion of the database used by other
channels or the module.
3.3.9 Auto-Poll Swap Float
0 to 3
This parameter swaps the floating-point data values received by the auto-poll
feature.
Swap Code Description
0 None - No Change is made in the byte ordering (1234 = 1234)
1 Words - The words are swapped (1234=3412)
2
Words & Bytes - The words are swapped then the bytes in each word are
swapped (1234=4321)
3 Bytes - The bytes in each word are swapped (1234=2143)
Depending on the host processor using the data, the proper swap code must be
utilized to present the data in the correct format.
3.3.10 Max Device Count
1 to 15
This parameter sets the maximum number of slave devices to be utilized for the
auto-poll feature. In point-to-point mode, the parameter should be set to a value
of 1. In multi-drop mode, the parameter should be set from 1 to 15 to represent
the number of slave devices attached to the channel.
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