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APPLICATIONS:
• Ethernet interface with TCP/IP protocol
• Two serial ports for monitoring &
controlling RS-232 and RS-485 devices
• Protection of expensive electronic systems for VME, CAMAC, VXI, CPCI,
Fastbus ect.
• Racks using forced air-cooling or water cooling.
GENERAL Description:
The Bi Ra Model 8884 Rack
Protection System is a detection system designed for the measurement,
announcement and control of potentially damaging conditions inside an
equipment rack. This simple, but effective system, protects your vital
equipment from excessive heat, water/smoke damage, ect. The RPS
provides a warning and or alarm status. Selectively enable or disable
any individual warning or alarm in any combination.The RPS is capable of
monitoring 3 crates, a total of 12DC
voltages in a rack. The voltages can range from 2V to 24V DC with a
resistor value in main chassis being changed for the various voltages
being monitored. The system was designed to operate from +/- 12V DC
since most sensors require these voltages.
RPS / ETHERNET
This unit is capable of remote monitor and control functions. The
system responds with a "Main Alarm" or "Main
Warning" associated with a individual response based upon enabled
items. Control functions may be initiated at any time to disable
responses or reset conditions. Upon receiving an alarm the RPS responds
by disconnecting multiple Vac inputs unless this function is disabled,
leaving control to the operator.
The RPS main chassis includes an Ethernet Data Acquisition System. This
provides 32 I/O channels, programmable in four byte-wide (8-bit) ports.
Port3 default configuration is set to power-up in output mode with zero
level outputs, this initializes the RPS control. Ports other than port3
always power-up as input ports. Ports 0,1 and 2 must be set to input
operation with port3 set to output operation after power-up. The port
settings are of critical importance. Features and Benefits include,
Direct 10Base-T Ethernet interface with TCP/IP protocol and two serial
ports for monitoring/controlling RS-232 and RS-485 devices. This
functionality provides a relatively effortless way to add industrial
serial device network elements to Ethernet.
MODEL 8884 RPS ( Rack Protection System )
DIGITAL I/O SYSTEM
KEY FEATURES/BENEFITS
- 32 Programmable Digital I/O Channels
- Inputs programmable to read digital signal status, change-of-state
and to perform event counting
- Outputs can be programmed for normal (on/off), delayed, and
variable delay/pulse-width models
- Two 16-bit counter channels perform frequency measurement,
high-speed event counting to 250kHz
- Retain state and count information during loss of power
- One RS-232 port monitors and controls instruments, gauges, smart
sensors, machines and terminals
- One RS-485 port monitors and controls instruments, smart sensors
and machines
- Synchronous and asynchronous client/server communications
- Fully Supported by Visual DesignerÔ
Application/MMI Generator Software for Windows
- Net Link drivers for Windows 3.x/9.x/NT, UNIX and DOS available
with complete documentation
- Windows NT COM Port Driver
- Third Party I/O drivers available for Intellution FIX, Wonderware
InTouch, USDATA FactoryLink, and National Instruments LabVIEW
DESCRIPTION
Digital I/O
Each 8884-1001E provides 32 digital I/O channels, programmable in
four byte-wide (8-bit) sections, or ports. Each digital port is TTL-level
compatible and can be independently programmed for input or output.
Trough local signal processing, various digital input/output functions
are supported. Inputs can be used to read the current status of digital
signals, detect signal state-changes (latch a state), and count events
up to 250Hz. Outputs can operate in simple on/off fashion, or can be
programmed for specific delay times and on/off times for control and
timing applications. In addition, eight of the digital output channels
can be individually configured for predetermined output states at power
up. All inputs and outputs are protected from damage under power on and
power off conditions.
High-Speed Counters
Two 16-bit high-speed programmable counters capable of counting TTL
level signals up to 250kHz are also provided. These counters also
perform direct frequency measurement. High-speed counter inputs are made
available by multiplexing them with digital input lines.
Serial I/O
RPS systems also feature serial I/O capabilities. An on-board RS-232
port can be used for both configuration and I/O applications. When the
RS-232 port is in "Configuration Mode", any terminal device or
computer with an RS-232 port can be used to program the unit's IP
address, subnet mask and gateway parameters. With the port in
"Command Mode", RPS units can monitor and control almost any
device with RS-232 connectivity, including instruments, scales, gauges,
smart sensors, machines and terminals.
RPS systems which feature RS-485 I/O capabilities are also available.
In addition to analog, digital and PS-232 I/O capabilities, these units
monitor and control any number of instruments, sensors, and machines
with RS-485 connectivity.
Data Retention
The 8884-1001E protects your data in the event of power outage. After
power is lost, the unit will retain state and count values on each
channel for up to five days.
MODEL 8884 RPS ( Rack Protection System )
ANALOG AND DIGITAL I/O SYSTEM
KEY FEATURES/BENEFITS
16SE/8DIFF Analog Inputs at-
16-bit Resolution - 8884-1031E
12-bit Resolution - 8884-1002E
Expandable up to 256 SE/128 Diff analog inputs using AI-MAX
Up to100kHz Sample Rate for 8884-1002E
Up to 45kHZ Sample Rate for 8884-1031E
Two 12-bit Analog Output Channels
16 Digit I/O Channels
Digital inputs can be programmed to read digital signal status,
changer-of-state and to perform general-purpose event counting
Digital outputs can be programmed for normal (on/off), delayed, variable
delay/pulse-width and square wave models
One programmable 16-bit counter performs frequency measurement,
high-speed event counting up to 250kHz
One RS-232 port monitors and controls instruments, smart sensors,
machines and terminals
One RS-485 port monitors and controls instruments, smart sensors and
machines
Synchronous and asynchronous client/server communications
Fully Supported by Visual DesignerÔ Application/MMI
development software for Windows
Net Link drivers for Windows
3.x/9.x/NT, UNIX and DOS available with complete documentation
Windows NT COM Port Driver
Third Party I/O drivers available for Intellution FIX, Wonderware
InTouch, USDATA FactoryLink, and National Instruments LabVIEW
DESCRIPTION
Analog I/O
The 8884-1031E Series and 8884-1002 Series can be configured for 16
single-ended or for 8 differential analog input channels through
software. The 8884-1031E Series unit provides high-accuracy 16-bit
resolution for the analog input channels and the 8884-1003E Series
offers analog input channels with 12-bit resolution.
Both units are also equipped with two analog output channels. They
provide voltage outputs at 12-bit resolution with a ±
10 V output range.
One rate generator is also provided for pacing analog input
acquisitions. The timebase for the rate signal is derived from an
internal 4 MHz crystal oscillator, allowing rates from 0.01 Hz to 100
kHz to be programmed.
Digital I/O
The 8884-1031E and 8884-1002E Series provide 16 TTL compatible
digital I/O channels. Digital I/O channels are programmable in two
bite-wide (8-bit) sections, or ports. Through local signal processing,
Various digital input/output functions are supported. Digital input can
be used to read the current status of digital signals, detect signal
state-changes (latch a state), and count events up to 250 Hz. Outputs
can operate in simple on/off fashion, or can be programmed for specific
delay times and on/off times for control and timing applications. All
inputs and outputs are protected from damage under power on and power
off conditions.
High-Speed Counters
The 8884-1031E and 8884-1002E Series include one 16-bit high-speed
counter channel. The input of this counter is made available by
multiplexing it with one of the digital input lines. This counter can
perform high-speed event counting on TTL level signals up to 250 kHz.
Additionally, the counter can perform direct frequency measurements.
Serial I/O
RPS system also feature serial I/O capabilities. An on-board RS-232
port can be used for both configurations and I/O applications. When the
RS-232 port is in "Configuration Mode", any terminal device or
computer with an RS-232 port can be used to program the unit's IP
address, subnet mask and gateway parameters. With the port in Command
Mode", RPS units can monitor and control almost any device with
RS-232 connectivity, including instruments, scales, gauges, smart
sensors, machines and terminals.
RPS systems which feature RS-485 I/O capabilities are also available.
In addition to analog, digital and RS-232 capabilities, these units
monitor and control any number of instruments, sensors, and machines
with RS-485 connectivity.
Port and bit assignments are as
follows : |
