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ROC800-Series Instruction Manual
Revised Jul-14
Installation and Use
2-13
4.
Using a flat-bladed screwdriver, gently pry the plastic locking clips
at the upper and lower back edge of the EXP housing away from
their securing tabs.
Note
:
Applying too much pressure breaks the plastic hooks.
5.
Once you free the plastic locking clips from their securing tabs,
gently pivot the back of the EXP away from the ROC827.
Note
:
The EXP detaches quickly. Hold it securely to prevent it
from falling.
6.
Place the detached EXP in a secure location.
7.
Replace the right-hand end cap.
8.
Replace the ROC827 on the DIN rail.
9.
Reattach all wiring.
10.
Replace the wire channel covers.
2.6 Central Processing Unit (CPU)
The ROC800 uses a standard ROC800-Series central processing unit
(CPU) containing the microprocessor, the firmware, connectors to the
backplane, three built-in communication ports (two with LEDs), a LED
low power wakeup button, a RESET button, the application license key
connectors, a STATUS LED indicating system integrity, and the main
processor (refer to
Figures 2-7
and
2-8
and
Tables 2-1
and
2-2
).
ROC800L
The ROC800L functions
only
with a Series 2 CPU.
The 32-bit microprocessor is based on a Motorola MPC862 Quad
Integrated Communications Controller (PowerQUICC) PowerPC
processor running at 65 MHz.
The internal Sanyo 3-volt CR2430 lithium backup battery provides
backup of the data and the Real-Time Clock when the main power is not
connected.
To
disable
the battery backup:
1.
Remove power from the ROC800.
2.
Remove the CPU module from the ROC800.
3.
Move the J3 jumper (see
Figure 2-8
) on the CPU module to the two
upper
pins.
4.
Reinstall the CPU module.
5.
Power up the unit for 20 seconds and then power down. This
activates the “sleep” mode for the backup battery.
To
enable
the battery backup: