Kingfisher Plus+ Hardware Manual
CP-12 Processor Module
4.3.1 Overview
•
Support for Processor and Communications Redundancy
•
Up to 3 communications ports
•
40 MHz x86 CPU
The CP-12 processor module has up to three independent communications ports. Ports 2
and 3 can house
while port 1 is a fixed serial port (RS-232).
This processor is targeted at the application space that is too complex for the PC-1 but does
not required the additional features made available with a CP-30 based system. The CP-12
has extended functionality over the PC-1 such as redundant processor and communications
modules support, and is compatible with Ethernet based boards.
The CP-12 uses the same configuration software as the PC-1 processor, and as such is
programmable with ladder logic.
The CP-12 has 512 KB of flash memory for operating code and system parameter storage,
and 512 KB of battery backed SRAM for all configuration and event storage data.
4.3.2 CP-12 Reset Procedures
The SRAM battery is enabled from the factory by default.
The user can clear the SRAM by removing the SRAM
link for five minutes.
This will clear the RTU configuration and Ladder Logic.
Behind the LED lens of the CP-12 there is a diagonally mounted jumper. This is a hardware
feature unique to the CP-12 processor.
When the jumper pins are shorted while the module is being reset (or power cycled), the
processor will enter Monitor Mode (the Kingfisher bootloader) and perform a read/write test
of the SRAM. This will forcefully clear SRAM, having the same effect as removal of the
SRAM link on the back of the CP-12 module.
Monitor Mode is a deterministic and efficient way of clearing a Processor as the module
does not need to be removed from the Backplane, and as the SRAM is forcibly overwritten.
Hardware Manual Version 7.16
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