Rockwell Automation 1785-L20C_L40C QUICK START CONTROLNET PLC-5 - Manual (Page 14)

2–2 Set Up the Hardware
Publication 1785-10.7 – October 1997
Configure the I/O Chassis
➀ Regardless of this switch setting, outputs are turned off when any of the following occurs:
•
processor detects a runtime error
•
an I/O chassis backplane fault occurs
•
you select program or test mode
•
you set a status file bit to reset a local rack
➁ If an EEPROM module is not installed and processor memory is valid, the processor’s PROC LED indicator blinks,
and the processor sets S:11/9, bit 9 in the major fault status word. To clear this fault, change the processor from
program mode to run mode and back to program mode.
➂ If the processor’s keyswitch is set in REMote, the processor enters remote RUN after it powers up and has its
memory updated by the EEPROM module.
➃ A processor fault (solid red PROC LED) occurs if processor memory is not valid.
➄ You cannot clear processor memory when this switch is on.
4 5
2 –slot
1 –slot
1/2 – slot
1
Always
Off
19309
6 7
Outputs of this I/O chassis remain in their last state when
a hardware failure occurs. ➀
Outputs of this I/O chassis are turned off when a
hardware failure occurs. ➀
EEPROM memory transfer to processor memory at power-up. ➁ ➂
EEPROM memory transfers to processor memory if processor memory
not valid.
EEPROM memory does not transfer to processor memory. ➃
Processor memory protection disabled.
Processor memory protection enabled. ➄
Not allowed
Processor Memory Protection
Switch
8
off
on
EEPROM Transfer
Addressing
Last State
Switch
on
off
Switches
Switches
off off
off on
on off
on on
off off
on on
on off
Set the backplane switches. 1
Pressed in
at top ON (closed)
Pressed in
at bottom OFF (open)
Install the Hardware