Instruction manual

ControlWave Express Instruction Manual (CI-ControlWave Express)
Revised Mar-2011 Introduction 1-5
FLASH Memory
The ControlWave Express includes 8 MB of FLASH memory. The
FLASH memory holds the system firmware and the boot project.
Optionally FLASH memory also stores the zipped ControlWave project
(*.zwt), user files, and historical data (audit/archive files).The FLASH
does not support hardware write protection.
System Memory (SRAM)
The ControlWave Express has 2 MB of static random access memory
(SRAM). During power loss periods, SRAM enters data retention mode
(powered by a backup 3.0V lithium battery). Critical system information
that must be retained during power outages or when the system has been
disabled for maintenance is stored here. This includes the last states of
all I/O points, audit/archive historical data (if not stored in FLASH), the
values of any variables marked RETAIN, the values of any variables
assigned to the static memory area, and any pending alarm messages not
yet reported.
1.4 Power Options
You can power the ControlWave Express by:
 a user supplied rechargeable 6/12V lead acid battery (used in
conjunction with a solar panel),
 other user-supplied battery systems
 bulk (nominal +6Vdc, +12Vdc or +24Vdc) power supply.
If you connect solar panels to rechargeable battery systems to power the
ControlWave Express, there is a secondary power input you can use to
provide power if there is no power from the solar panel/battery system.
1.5 I/O Options
ControlWave Express comes with the following standard I/O
 2 Pulse Counter Inputs with a 1 second scan rate (can be configured
as discrete inputs (DI))
 The 14 MHz CPU and 33 MHz CPU with Ethernet also include a
Resistance Temperature Device (RTD) probe.
In addition, three different versions of the optional process I/O board are
available: