Backplane grounding bar should be used to connect shield ground of the input cable. If shield ground
connection is necessary, the module should be installed on
backplane which support
both COMREQ and memory mapping method
d to update same variable, the result will be
as the last command accepted by the module
that which will affect the outcome
During Indirect firmware update process, if the operation is disrupted (e.g. power cycle or the serial cable
disconnected) module goes into boot mode (S1 and S2 LEDs blink in unison continuously).
If the module is configured as Classic mode in the hardware configuration, then restart the firmware update
process to complete the firmware upgrade.
If the module
is configured as Enhanced mode, then Loss of IO Module fault will be logged in the IO Fault table.
To recover from this situation please follow below steps:
Clear the hardware configuration from CPU memory
RAM and Flash(if the hardware configuration is
stored in Flash)
Power cycle the system
Restart the firmware update process.
After the firmware update is complete, restore the hardware configuration in the CPU memory.
x and later
not support the 90
30 Hand Held programmer
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