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The following parameter assignments are possible:
• "On": HART communication is enabled.
• "Off": HART communication is disabled.
HART communication is then activated on a channel-specific basis with the "HART enabled"
parameter.
You can find additional information on this parameter in the section "HART for safety-related
applications (Page 77)".
5.4.9
HART activated
Definition
This parameter is used to enable the HART communication for the respective channel.
This parameter can only be configured when the "HART gate" is activated and the measuring
range "4 to 20 mA" is set.
The parameter is not safety-related, meaning that fail-safe deactivation of the HART
communication is not possible with this parameter.
5.4.10
Measurement type/measuring range
Definition
• "Measurement type" parameter
The "Measurement type" parameter can be used to select between 2-wire and 4-wire
transducers or to deactivate the channel.
With a 2-wire transmitter, the sensor supply is internal, with a 4-wire transmitter it is external.
You can find more information on this in the section "Applications cases of the I/O module
(Page 37)".
You can deactivate an unused channel with this parameter (measurement type
"deactivated").
If you deactivate unused channels, the response time of the F-I/O module is reduced.
You can find more information on this in the section "Response times (Page 113)".
• "Measuring range" parameter
With an active channel, i.e. the "Measurement type" parameter is not "deactivated", you can
select between different measuring ranges using the "Measuring range" parameter.
An overview of the measuring ranges and the overflow, overrange, etc. can be found in
appendix "Analog value representation (Page 109)".
F-AI 8xI 2-/4-wire HART HA
Equipment Manual, 09/2021, A5E50557845-AA
5.4 Explanation of the module/channel parameters
Parameters/address space
31
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