SMAR HI302, Руководство пользователя

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Chapter 5
5.1
Operation
An introduction on the module firmware, its overall performance, signal LEDs status and
work in regime is presented below. See the parameter HCFG.FIRMWARE_REVISION to
know the firmware version.
Initialization
When initialized, the resident program performs a checkup on the module for its perfect
working condition:
•
The hardware’s health access to memories, access to UARTs, backup board’s
condition, etc;
•
Start up on the Fieldbus communication;
•
Search for a valid block configuration in the memory. If found, the HART communication
is started.
After this stage, the front LEDs reflects the result of the initialization and the self-
diagnostic.
LEDs Status
LEDs ON
This LED must remain lit, indicating that the module is feeding and that the HOT SWAP
circuit is working normally. If this LED is off and the outside feeding is normal, it indicates
that there is some problem with the HOT SWAP circuit, or that the short-circuit protection
is working. Turn off the module, immediately, restart it a few minutes later and if the
problem continues, send the device to maintenance.
LED FAIL
This LED has three statuses:
•
OFF : there is no error to be reported, the minimum configuration has been set,
correctly saved on the EEPROM and the HI302 should operate well.
•
Blinking : the HI302 has not received the minimum configuration to operate. Send the
minimum configuration via Syscon. Another reason is any fatal error that stops the
HI302 operation. Turn it off and after a few seconds, restart it. If the problem
continues, press the “FCT INIT” button. If these procedures were not effective, send
the device to maintenance.
LED SAVING
The HI302 module has a serial EEPROM to store non-volatile data from its configuration.
However, to avoid the premature wear off of the memory, use a mirror of its contents in
SRAM. While this LED remains lit, avoid the HI302 to be switched off or reset, as this will
indicate that static data from the SRAM mirror is being saved on the EEPROM.
ATTENTION
After sending the configuration to the HI302, this LED may stay lit for a few minutes while
data is being saved permanently on the EEPROM. If it is turned off or reset, this
configuration will be lost, and must be sent again.