CAN Bus
    I-7530A
 
 
 
 
 
 
 
 
 
    CAN Bus
 
 
 
    I-7000 Series
 
     

 
 
       
 


I-7530A

RS-232/422/485 to CAN Converter

 
 
     
 

CAN (Controller Area Network) is a serial bus system especially suited to structure intelligent industry devices networks and build smart automatic control systems. The following figure shows the application architecture for I-7530A modules. The PC can be the CAN host, monitor or HMI to access/control the CAN device through the CAN network by the I-7530A Converter. The programmable RS-232/485/422 device (For example: I-8411/I-8431/I-8811/I-8831/W-8031/W-8331/W-8731 embedded controller) can use the serial port to connect to the CAN network via the I-7530A module. In order to use the CAN network with traditional RS-232/485/422 devices, we provide a way to achieve this purpose. The I-7530A is designed to unleash the power of CAN bus via RS-232/485/422 communication method. It accurately converts messages between CAN and RS-232/485/422 networks. This module let you to communicate with CAN devices easily from any PC or devices with RS-232/485/422 interface.

Moreover, we expand the functionalities of I-7530A for some special application. In pair connection mode, I-7530A can be used to connect PC with other RS-232/485/422 devices at the same time. The application architecture may be as follows.

3000V isolation on CAN side
The CAN port of I-7530A is an isolated with 3000V isolation. This isolation can protect the local RS-232/485/422 devices from the damage signal coming from CAN network.

Watchdog inside
The I-7530A Watchdog is a hardware reset circuit to monitor the I-7530A¡¦s operation status. When working in harsh or noisy environment, the I-7530A may be down by the external signal. The circuit may let the I-7530A to work continuously and never halt.

Power and Error indicator display
There are two indicators on the I-7530A.The power indicator can help user to check whether the I-7530A is standby or transmitting/receiving messages. The Error indicator will be turned on when some errors occur on the I-7530A.

 
   
 
 
     
 
• Control System• Building Automation• Factory Automation• Distributed data acquisition
 
     
 
 
 
     
 
  • Compatible with CAN specification 2.0A and B
  • Fully compatible with ISO 11898-2 standard
  • Support various baud rate from 10K bps to 1M bps
  • Jumper for 120 £[ terminator resistor
  • Software configurable CAN and RS-232 /422/485 communication parameters
  • Power, data flow and error indicator for CAN and RS-232/422/485
  • Watchdog inside
  • Provide the transparent communication between the RS-232/485/422 devices via CAN bus
  • Enable different RS-232/485/422 devices into an individual group in CAN bus network.
    (Full-duplex communication mode of RS-232/422 devices is not supported)
 
     
 
 
 
     
 
  • CAN bus Baud rate configuration
  • CAN acceptance filter configuration
  • CAN 2.0A or 2.0B specific selection
  • RS-232/485/422 Baud rate and data bit setting
  • RS-232/485/422 responded selection
  • Easy test to transmit/receive CAN messages
  • Setting for I-7530A communication mode (normal mode or pair connection mode)
 
     
 
 
 
     
 
  • It has a CAN message field which can display the receiving CAN messages in Decimal or HEX mode.
  • Can display the timestamp of each received CAN message.
  • Users can change the display mode, up-down, down-up or stop.
  • It can count the number of received CAN messages.
  • Data Log : It can save the CAN message as ¡§ txt ¡¨ file.
  • Has CAN ID filter function.
  • Can send CAN message to CAN BUS according the defined interval time.

 
     
 
 
 
     
 
Item Description

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The test is the performance which transfer 8 bytes data frame from CAN to RS232.
CAN setting
Transfer frames
Transfer time(ms)
RS-232 setting
Receive frames
Receive time (ms)
The max frames/sec
Data<8 byes/frme
RS232 command length
2.0A 1Mbps
1,000
200
115200,n,8,1
1,000
2954
338
>=338
22 B
2.0A 1Mbps
1,000
200
115200,n,7,1
1,000
2775
360
>=360
22 B
2.0B 1Mbps
1,000
200
115200,n,8,1
1,000
3580
279
>=279
27 B
2.0B 1Mbps
1,000
200
115200,n,7,1
1,000
3337
299
>=299
27 B


The test is the performance which transfer 8 bytes data frame from RS232 to CAN.
CAN setting
Transfer frames
Transfer time (ms)
RS-232 setting
Receive frames
Receive time (ms)
The max frames/sec
Data<8 byes/frame
RS232 command length
2.0A 1Mbps
1,000,000
2,612,243
115200,n,8,1
1,000,000
2,612,243
382
>=382
22 B
2.0A 1Mbps
1,000,000
2,441,130
115200,n,7,1
1,000,000
2,441,130
409
>=409
22 B
2.0B 1Mbps
1,000,000
3,142,043
115200,n,8,1
1,000,000
3,142,043
318
>=318
27 B
2.0B 1Mbps
1,000,000
3,142,043
115200,n,7,1
1,000,000
2,966,646
337
>=337
27 B
 
     
 
 
 
     
 
Hardware
EEPROM
2 KB (for system information), 100,000 erase/write cycles
CAN Interface
Transceiver
NXP 82C250
Connector
9-pin male D-Sub (CAN_L, CAN_H, N/A for others)
Port Channels
1
Buad Rate
10 k, 20 k, 50 k, 100 k, 125 k, 250 k, 500 k, 800 k and 1 Mbps
Protection
3000 VDC power protection on CAN side, 2500Vrms photo-couple isolation on CAN bus
Terminator Resistor
Selectable 120£[ terminator resistor by jumper
Support Protocol
CAN 2.0A/2.0B
Receive Buffer
1000 data frames
UART Interface
COM
RS-232/RS-485/RS-422 (can¡¦t be used simultaneously)
Connector
14-pin terminal connector
RS-232 : TxD, RxD, GND
RS-422 : Tx+, Tx-, Rx+, Rx-
RS-485 : DATA+, DATA-
Baud Rate
110, 150, 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps
Data Bits
5, 6, 7, 8
Stop Bits
1,2
Parity
None, Even, Odd
Receive Buffer
900 data frames
Power
Power Consumption
1W
Power Requirement
Unregulated +10VDC ~ +30VDC. Power reverse protection, Over-Voltage brown-out protection
LED
Round LED
ON LED: Power and Data Flow; ERR LED: Error
Mechanism
Installation
DIN-Rail
Dimensions
72mm x 118mm x 33mm (W x L x H)
Environment
Operating Temp.
-25¢J to 75¢J
Storage Temp.
-30¢J to 80¢J
Humidity
10~90% non-condensing
 
     
 
 
 
     
 
I-7530A-G CR
Intelligent RS-232/485/422 to CAN converter (RoHS)
 
     
 
 
 
     
 
CAN bus Connector
9-pin Female D-sub & 3-wire CAN bus cable (1M)
7/14 channel Surge Protector
EMI Ferrite Split/Snap-On Core
Field-Installation A-coded 5-pin Female
 
     
   
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