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CAN-8424
(I-8420)
DeviceNet Embedded Device with 4 I/O Expansions |
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DeviceNet is one kind of the network protocols based on the CAN bus and
mainly used for embedded network for machine control, such as
textile machinery, printing machines, injection molding machinery,
or packaging machines, etc. DeviceNet is a low level network that
provides connections between simple industrial devices (sensors,
actuators) and higher level devices (controllers). It allows direct
peer to peer data exchange between nodes in an organized and,
if necessary, deterministic manner. DeviceNet defines a connection-based
scheme to facilitate all application communications. A DeviceNet
connection provides a communication path between multiple endpoints.
The endpoints of a connection are applications that need to share
data.
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The CAN-8424
main unit based on the modular design offers many good features
to the users and provides more flexibility in data acquisition
and control system. In addition, ICP DAS also presents a CAN-8424
Utility tool to allow users to configure and create the EDS file
for the specific IO modules plugged in. Therefore, users can easily
apply the CAN-8424 embedded controller in DeviceNet network. The
application architecture is demonstrated as follows: |
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CAN-8424 main unit can be
plugged in the DCON(/I-8K/I-87K) IO modules to create a customized
DeviceNet slave device and application. Before applying the CAN-8424
in DeviceNet applications, users must understand the relationship
between these DeviceNet applications and assembly objects within
CAN-8424 DeviceNet slave. In order to allow user to easy apply the
device on the network, ICP DAS also provides the CAN-8423 Utility
tool to configure the IO connection path, assembly and application
objects information and create the EDS file of the device. |
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The following simple steps show how
to use CAN-8x24 in the DeviceNet protocol.
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¡EAutomotive ¡EFood & Beverage¡EPackaging¡EHigh-speed
Assembly
¡EPulp & Paper¡ESemiconductor Fabrication¡EControl System...etc.
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DeviceNet
Version |
DeviceNet
Specification Volume I & II, Release 2.0 |
Number
of Nodes |
64(Max) |
Baud
Rate |
125K, 250K,
500K |
Support
Message Groups |
Group 2 only
Server |
UCMM |
Not Support |
I/O
Operating Modes |
Poll, Bit-Strobe,
Change of State/ Cyclic |
Device
Heartbeat Message |
£¾ |
Device
Shutdown Message |
£¾ |
Produce
EDS file Dynamically |
£¾ |
No.
of Fragment I/O |
128
Bytes (Max) (Input/ Output) |
MAC
ID Setting |
Rotary
Switch |
Baud
Rate Setting |
Rotary
Switch |
DeviceNet
Status LED |
NET,
MOD, PWR |
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Hardware |
CPU |
80186, 80 MHz or compatible |
SRAM/Flash/EEPROM |
512 KB / 512 KB / 16 KB |
NVRAM |
31 bytes (battery backup, data valid for up to 10 years) |
RTC (Real Time Clock) |
Yes |
Watchdog |
Watchdog IC |
Expansion Slot |
4 slots |
CAN Interface |
Controller |
NXP SJA1000T with 16 MHz clock |
Transceiver |
NXP 82C250 |
Channel number |
1 |
Connector |
5-pin screwed terminal block (CAN_L, CAN_SHLD, CAN_H, N/A for others) |
Baud Rate (bps) |
125 k, 250 k, 500 k |
Transmission Distance (m) |
Depend on baud rate (for example, max. 500 m at 125 kbps ) |
Isolation |
3000 VDC for DC-to-DC, 2500 Vrms for photo-couple |
Terminator Resistor |
Jumper for 120 £[ terminator resistor |
Specification |
ISO-11898-2, CAN 2.0 |
Protocol |
DeviceNet Volumn I ver2.0, Volumn II ver2.0
Predefined Master/Slave Connection set |
UART Interface |
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RS-232 (For configuration) |
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9-pin male D-Sub (DTE: RxD, TxD, RTS, CTS, DTR, DSR, RI, GND) |
LED |
Round LED |
PWR LED, NET LED, MOD LED |
Power |
Power supply |
Unregulated +10 ~ +30 VDC |
Protection |
Power reverse polarity protection, Over-voltage brown-out protection |
Power Consumption |
2.5 W |
Mechanism |
Installation |
DIN-Rail |
Dimensions |
188mm x 132mm x 91mm (W x L x H) |
Environment |
Operating Temp. |
-25 ~ 75 ¢J |
Storage Temp. |
-30 ~ 80 ¢J |
Humidity |
10 ~ 90% RH, non-condensing |
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CAN-8424-G (I-8420) |
DeviceNet
Embedded Device with 4 empty slots |
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EMI Ferrite Split/Snap-On Core
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Field-Installation A-coded 5-pin Female
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