DP-VME-3078 48 Channel Isolated Digital Input / Output Module · • 48 channel isolated digital...
Transcript of DP-VME-3078 48 Channel Isolated Digital Input / Output Module · • 48 channel isolated digital...
DP-VME-3078 48 Channel Isolated Digital Input / Output Module
KEY FEATURES AND BENEFITS
APPLICATIONS
• 48 channel isolated digital input/interrupt
Isolation in group of 4 channels
• Input voltage options – 5V,12V,28V & 48V (factory settable).
• 48 channel isolated digital open collector output.
• 200 mA sink current
• Isolation in group of 8 channels.
• Two modes of digital input – edge select & state change
• User programmable masks on each digital input channel
• User programmable LOW true orHIGH true selection on each input.
• Programmable de-bounce for digital input channels –1.024mS to 16.77S.
• Free wheeling diode protection for driving relay coils.
• Standard 6U VME64X Form factor with Front I/O connectors.
• Drivers available – Windows 2000/XP,
• RT Linux, Lynx OS.
• Digital I/O interface
• Status setting
• Status monitoring
• Automated test equipment
• Checkout systems
OVERVIEW
INPUTS
DEBOUNCED INPUT
LOW TRUE AND HIGH TRUE LOGIC
STATE CHANGE INPUT
OUTPUT
DP-VME-3078 is a 48 Channel Isolated Digital Input Output Module. This module provides 48 input / interrupt
channels and 48 digital output channels with isolation. The 48 channel inputs are divided into 12 groups, each
group consisting of 4 channels and 1 common GND .The 48 output channels are divided into 6 groups, each
group consisting of 8 channels and a common GND. This module can be used for digital I/O interface, status
setting, status monitoring, automated test equipment and checkout systems.
The input channels have factory settable voltages (5V, 12V, 28V & 48V). Each input group has a programmable
debounce circuit so as to enable a unique debounce period for each group. The debounce clock can be
programmed from 1.024mS to 16.77S in binary steps. The inputs are processed through a debounce circuit to
ensure that false transients are not recognized. Subsequent to de-bouncing,the data can be acquired in a
number of modes. Capability to mask individual input channel and group interrupt is available. The interrupt
status is latched and available for VME backplane reading.
The debounced input data can be read on command from the host bus.
Each input channel can be assigned as “LOW TRUE” or “HIGH TRUE” through software. Each input channel
can generate a backplane interrupt on either “HI” to “LO” or “LO” to “HI” or state change. The LOW TRUE /
HIGH TRUE polarity can be programed on a per channel basis.
The state change input block continuously compares the current data with the previous data. Whenever the
change occurs in the input, the changed status is indicated via an interrupt and the changed channels are
recorded for reading by the host through the VME interface.
The output channels are open collector output with 200 mA sink current. These output channels are provided
with relay coil fly back protection and can switch up to 32V. The output channels are grouped into six groups of
8 channels each and are isolated from the backplane and from other groups. For output functions, the data is
written from the host into a primary latch. Subsequently, the host can give the command to latch this data onto
the secondary latches. The secondary latch value to the output lines. The latching to secondary latch can be
carried out at the group level or for all 48 channels simultaneously.
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DP-VME-3078
SELF-TEST REGISTER
SOFTWARE SUPPORT
Complete built-in-self-test allows all channels in the module to be independently tested without any external circuits. Each input after isolation
is fed through a software programmable switch assembly to allow either self-testing or direct reading of field inputs. The test value can be
programmed by the user to carry out the self-test as desired ,even when the field wiring is in place.
The module is supplied complete with device drivers in Windows 2000 and RT Linux. Please contact factory for support in any other operating
system such as VxWorks,QNX,INTime,Lynx etc.
SPECIFICATIONS
48 CHANNEL DIGITAL INPUT
48 CHANNEL DIGITAL OUTPUT
INTERRUPTS
No. of input channels 48Isolated input groups 12 isolated groups
4 input channels per groupInput control On program commandDebounce Programmable from 1.024mS to
16.77SMinimum pulse width 200µS + debounce timeIsolation Field input to system - 500VDC
Input group to group - 150VDCInput voltage Input voltage: 5V, 12V, 28V & 48V
factory settable
No. of output channels 48 channels outputIsolated output groups 6 groups, 8 channels per group Output configuration Open collectorOutput sink current 200mA,50% duty ratioIsolation Field output to system - 500V
Output group to group - 150VMaximum open collectorVoltage 32VFly-back protection Built-in diode on board
Interrupt mode Input interrupt or state changeMask capability Individual channel or group basis
PROTECTION
POWER REQUIREMENTS
CONNECTORS
DIMENSION
ENVIRONMENT
ORDERING INFORMATION
Reverse protection voltage 60V
Backplane VME 64x P1 & P2 connectorsField I/O High-density D-type connectors
233.35mm x 160mm ( 6U card)
Factory options specified based on applications
0 - 5V input 3 - 12V input 6 - 28V input 9 - 48V input 3 - Commercial 6 - Rugged
+5V@1A, [email protected]
Rugged and commercial version
DP VME 3078 3 0 0
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DP-VME-3078
BLOCK DIAGRAM OF 48 CHANNEL DIGITAL INPUT / OUTPUT MODULE
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