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.
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:
Hardware |
CPU |
De 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 Ω 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 |
COM 1 |
RS-232 (For configuration) |
COM 1 Connector |
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 ℃ |
Storage Temp. |
-30 ~ 80 ℃ |
Humidity |
10 ~ 90% RH, non-condensing |
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