CAN Bus
    I-7242D
 
 
 
 
 
 
 
 
    CAN Bus
 
 
    I-7188 Series
 
     

 
 
       
 


I-7242D
DeviceNet / Modbus RTU Gateway

 
 
     
 
The I-7242D is one of CAN bus products in ICP DAS. The device allows a master located on a DeviceNet network to enter into a dialogue with the slaves on a Modbus RTU network In DeviceNet network, it is a Group 2 Only Slave device, and supports ¡§Predefined Master/Slave Connection Set¡¨.
 
 
It is a general protocol converter operating in a way that is transparent to the user. In addition, we also provide the utility software for users to configure the I-7242D¡As parameters and build the EDS file. Users can easily apply Modbus RTU devices in DeviceNet applications with the I-7242D.
 
 
   
 
• Control System• Building Automation• Factory Automation• Distributed data acquisition
   
 
 
     
 
DeviceNet Features
 
  • Group two only server DeviceNet subscriber
  • Dynamic Assembly Objects Mapping
  • On-line change baud rate and MAC ID of CAN
  • NS, MS and IO LED indicators
  • 7-segmemt LED to show operation mode, MAC ID, baud rate and error code
  • Connection supported:
              1 ¡§Explicit Connection¡¨
              1 ¡§Polled Command/Response¡¨ connection
              1¡¨Bit-Strobed Command/Response¡¨ connection
              1¡¨Change-of-State / Cyclic¡¨ connection
  • Configuration facilitated by the use of specific EDS files
  • Dedicated Explicit message interface for full Modbus interface
  • Explicit & I/O length: 240 bytes max.
 
 
 
Modbus RTU Features
 
 
  • Maximum number of subscribers: 10 Modbus commands
  • Communication speed: 1200,2400,4800,9600,19200,38400,57600 or 115200 bits/s, configured using  Utility.
  • Data bits: 8 bits, configured using Utility
  • Parity bits: None, even or odd, configured using Utility
  • Stop bits: 1 or 2 bits, configured using Utility
 
     
 
 
 
     

The I-7242D Utility is help users to configure the devices, and has following features:

  • Support DeviceNet node ID, baud rate setting
  • Support Modbus RTU parameters setting
  • Show Modbus RTU devices configuration
  • Show DeviceNet application and assembly objects configuration
  • Support DeviceNet Polling, Bit-Strobe and COS/Cyclic Produced and  Consumed connection path setting
  • Dynamic produce EDS file
 
 
 
   
 

The simple steps about how to use DNS_MRU gateway are described as follows:


   
 
   
 
Code
Name
Description
01 (0x01)
Read Coil Status
Read the ON/OFF status of discrete outputs in the slave
02 (0x02)
Read Input Status
Read the ON/OFF status of discrete inputs in the slave
03 (0x03)
Read Holding Registers
Read the binary contents of holding registers in the slaves
04 (0x04)
Read Input Registers
Read the binary contents of input registers in the slaves
15 (0x0F)
Force Multi Coils
Forces each coil in a sequence of coils to either ON or OFF
16 (0x10)
Preset Multi Registers
Preset value into a sequence of holding registers
 
     
 
 
 
     
 
Hardware
Watchdog
Watchdog IC
CAN Interface
Controller
NXP SJA1000T with 16 MHz clock
Transceiver
NXP 82C250
Connector
5-pin screwed terminal block (CAN_L, CAN_H, N/A for others)
Isolation
1000 VDC for DC-to-DC, 2500 Vrms for photo-couple
Protocol
DeviceNet Volumn I ver2.0, Volumn II ver2.0
UART Interface
COM 1
RS-232 (For configuration)
COM 2
RS-485 (Self-turner inside)
Baud Rate (bps)
1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200
Data bit
7, 8
Stop bit
1, 2
Parity
None, Even, Odd
Protocol
Modbus RTU
LED
Round LED
MS LED, NS LED, IO LED
5-digit 7 Segment
Yes
Power
Power supply
Unregulated +10 ~ +30 VDC
Protection
Power reverse polarity protection, Over-voltage brown-out protection
Power Consumption
3 W
Mechanism
Dimensions
72mm x 122mm x 33mm (W x L x H)
Environment
Operating Temp.
-25 ~ 75 ¢J
Storage Temp.
-30 ~ 80 ¢J
Humidity
10 ~ 90% RH, non-condensing
 
     
 
 
 
     
 
I-7242D-G
DeviceNet Slave / Modbus RTU Master Gateway
I-7242D-G CR
DeviceNet Slave / Modbus RTU Master Gateway (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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