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The CAN (Controller Area Network) is a serial communication bus especially suited to interconnect smart devices to build smart systems or sub-system. It efficiently supports distributed real-time control with a very high level of security. In CAN networks, there is no addressing of subscribers or stations in the conventional sense, but instead prioritized messages are transmitted. As standalone CAN controller, I-8120W with WinPAC-8000/ViewPAC-2xWx/XPAC-8000/XPAC-8000-CE6 series MCU (main control unit) represents an economic solution. It has one CAN communication port with 5-pin screw terminal connector, and is useful for a wide range of CAN applications. Besides,I-8120W uses the new Phillips SJA1000T and transceiver 82C250, which provide both CAN 2.0A and 2.0B specific, re-transmission function, bus arbitration and error detection.
Combining the benefits of WinPAC-8000/ViewPAC-2xWx/XPAC-8000/XPAC-8000-CE6 series MCU without increasing the CPU loading heavily, it could be a powerful multi CAN port programmable device server by driving the program in the 186 CPU ofI-8120W. It can also communicate with other kinds of communication interface, such as RS-232/RS-485/Ethernet ports to be a programmable device server. Therefore, users can design the various applications between different communication protocols.
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| Applications |
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| Architecture |
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| Solution for CAN bus Power Meter |
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The PM-213x-CAN series power meter provides the CAN bus interface for users to easily gather the real-time power consumption information in their CAN applications. The PM-213x-CAN provides the Auto-Response mode which responses messages at regular intervals automatically. It makes the communication more efficient when collecting a lot of remote power information. The polling mode offers the precise information of every step required by the monitors. In addition, the PM-213x-CAN also owns the arbitration mechanism which can avoid data collision and error detection.
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NXP TJA1042 CAN transceiver
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Follow CiA CAN 2.0B specification
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Support Auto-Response mode and Polling mode
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Support baud rate 125 kbps, 250 kbps and 500 kbps
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Support up to 255 nodes on the CAN network
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2500 Vrms isolation on CAN port
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4 kV ESD protection on CAN port
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CAN bus provides better capability in noise suppression
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Support arbitration mechanism to avoid collision
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Support error detection and error correction on CAN bus
Link to Power Meter page… |
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The PAC family of ICP DAS is a modular network-based PAC with the capability of connecting I/O either through its own dual backplane bus or alternatively through remote I/O units and remote I/O modules. Applying the PM-213x-CAN into the PAC based system, the user could use I-8120W with power meter firmware inside. The power meter firmware manages all the PM-213x-CAN power meters and collects all power data automatically. We provide the development API and the management utility which is shown as the following picture..
Download … |
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| Features |
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Common Features
- Support WinPAC-8000, ViewPAC, XPAC-8000, XPAC-8000-CE6 series MCU (driver for LinPAC and iPAC will be available soon)
- 8 KB DPRAM inside
- RTC(Real Time Clock) inside
- Allow user to program user-defined firmware in I-8120W
- Support default firmware update
- eVC++, VC6, VS 2005(VB.Net, C#.Net, VC++) demos and libraries are given
- C/C++ function libraries of firmware and demos are given
Note: The XPAC-8000 series MCU can support only 1 I-8120W.
CAN Port Features
- Follow ISO11898-2 specification
- Philip SJA1000T CAN controller
- Philip 82C250 CAN transceiver
- CAN controller frequency :16 MHz
- 2500 Vrms photo-isolation protection on CAN side
- Switch for 120 Ω terminal resistor of CAN bus
- Compatible with CAN specification 2.0 parts A and B
- Provide default baud rate: 10 kbps, 20 kbps, 50 kbps, 125 kbps, 250 kbps, 500 kbps, 800 kbps, and 1 Mbps
- Allow user-defined baud rate
- Cyclic transmission precision: ±0.5ms precision when cyclic time is below 10ms , ±1% error when cyclic time exceeds 10ms
- Provide 5 sets of cyclic transmission
- Timestamp of CAN message with ±1ms precision
Note: We have verified to drive 100 CAN nodes at the same time via one CAN port of I-8120W.
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| Hardware Specifications |
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Hardware |
CPU |
80186, 80 MHz or compatible |
SRAM/Flash/EEPROM |
512 KB / 512 KB / 16 KB |
DPRAM |
8 KB |
Watchdog |
Watchdog IC |
ESD Protection |
2 kV class A |
CAN Interface |
Controller |
NXP SJA1000T with 16 MHz clock |
Transceiver |
NXP 82C250 |
Connector |
5-pin screw terminal block (CAN_GND, CAN_L, CAN_SHLD, CAN_H, N/A) |
Baud Rate (bps) |
10 k, 20 k, 50 k, 125 k, 250 k, 500 k, 800 k, 1 M (allow user-defined baud rate) |
Isolation |
3000 VDC for DC-to-DC, 2500 Vrms for photo-couple |
Terminal Resistor |
Switch for 120 Ω terminal resistor |
Specification |
ISO-11898-2, CAN 2.0A and CAN 2.0B |
LED |
Round LED |
PWR LED, RUN LED, ERR LED |
Software |
Driver |
I-8120W (for designing user-defined firmware), WinPAC, ViewPAC, XPAC, XPAC-CE6 (The XPAC series PAC only support one I-8120W) |
Library |
TC/BC/TC++/BC++, eVC++ 4.0, VC++ 2005, C#.net 2005, VB.net 2005 |
Power |
Power supply |
Unregulated +10 ~ +30 VDC |
Protection |
Power reverse polarity protection, Over-voltage brown-out protection |
Power Consumption |
1.5 W |
Mechanism |
Dimensions |
31mm x 91mm x 115mm (W x L x H) |
Environment |
Operating Temp. |
-25 ~ 75 ℃ |
Storage Temp. |
-30 ~ 80 ℃ |
Humidity |
10 ~ 90% RH, non-condensing |
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| Software Utility Features |
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- Utility tool for downloading user-defined firmware and updating default firmware
- Development Toolkit for eVC++ on WinPAC, VS 2005 (VB.Net, C#.Net, VC++) on XPAC-8000-CE6 and VC6 on XPAC-8000
- Development Toolkit for C/C++ on MiniOS7
- I-8120W don't support any ISaGRAF series main control unit
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| Ordering Information |
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Module with one programmable CAN port, ViewPAC-2xWx/WinPAC-8000/XPAC-8000/XPAC-8000-CE6 library, 80186 80MHz CPU, 8 KB DPRAM, 512 KB flash, 512 KB SRAM, 120 Ω terminal resister selected by switch |
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| Optional Accessories |
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| CA-0910-C |
9-pin Female D-sub & 3-wire CAN bus cable (1M) |
| SG-770 |
7/14 channel Surge Protector |
| 4PCD-002 |
EMI Ferrite Split/Snap-On Core |
| M12A-5P-IP68 |
Field-Installation A-coded 5-pin Female |
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