Rockwell Automation 1785-L20C_L40C, D17856.5.14 ControlNet PLC-5 Programmable Controllers User Manual - Manual (Page 14)

Chapter 1
Installing Your ControlNet PLCĆ5 Processor
1-6
Set the I/O chassis backplane switches using a ball-point pen to set
each switch.
Important: Do not use a pencil because the tip can break off and
short the switch.
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 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 mode
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 powerup. ➁➂
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
O N O F F
12
3
4
5
6
7
8
ON
OFF
Setting the I/O Chassis
Backplane Switches