Emerson ControlWave EFM 3808 - Board Variations

ControlWave Express Instruction Manual (CI-ControlWave Express)
1-4 Introduction Revised Mar-2011
 transmit (TX) and receive (RX) LEDs for each communication port
 2 MB of battery backed Static RAM (SRAM),
 512KB boot/downloader FLASH,
 8MB simultaneous read/write FLASH memory
Board Variations
The CPU/System Controller board has three basic variations:
Table 1-1. CPU/System Controller board Variations
CPU Nominal
Input
Power
Ethernet
Port?
Solar
Regulator
?
Auxiliary
Power
Output?
RTD Input?
14MHz
ultra low
power
+6Vdc or
+12Vdc
No Yes Yes Yes.
Connects to
100-ohm
platinum bulb.
Uses DIN
43760 curve.
33MHz
low
power
+12V or
+24Vdc
No Yes Yes No
33MHz +12V or
+24Vdc
Yes No No Yes (same as
ultra low
power)
Note: Each of the variants shown in Table 1-1 may be ordered with or
without special gas calculation firmware.
CPU Backup Battery
The CPU/System Controller board has a coin cell socket that accepts a
3.0V, 300 mA-hr lithium battery. This 3.0V battery provides backup
power for the real-time clock and the system’s Static RAM (SRAM).
CPU Memory
There are several different types of memory used by the CPU:
Boot/Downloader FLASH
Boot/download code is contained in a single 512 Kbyte FLASH chip.
Boot FLASH also holds the value of soft switches, audit/archive file
configurations, and user account and port information.