Spectrum 1734, User Manual

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Chapter 4: OE2CIH and HART 4-31
User’s Manual Pub. 0300272-03 Rev. B
HART Processor Detects an Error
During startup, the main processor sets a timeout (200 ms) and a DAC value for
the HART processor to use if it ever stops receiving communications. Once the
HART processor detects this timeout, the DAC value is used. The DAC value is
determined by the configuration of the channel Fault Mode setting.
Main CPU Failure
In the case where the main CPU does not run on power up, the outputs remain
disabled. The HART Processor does not boot up until specifically commanded
via special bootloader commands.
Disabled Channels
A disabled channel is held in reset and no processing takes place for that channel.
Getting Technical
Assistance
Note that your module contains electrostatic components that are susceptible to
damage from electrostatic discharge (ESD). An electrostatic charge can
accumulate on the surface of ordinary wrapping or cushioning material.
In the
unlikely event that the module should need to be returned to Spectrum
Controls Inc., please ensure that the unit is enclosed in approved ESD
packaging (such as static-shielding/metallized bag or black conductive
container).
Spectrum Controls, Inc. reserves the right to void the warranty on
any unit that is improperly packaged for shipment.
RMA (Return Merchandise Authorization) form required for all product returns.
For further information or assistance, please contact your local distributor, or call
the technical support number provided under the Technical Support section in the
Preface.
Declaration of
Conformity
Available upon request