I-7242D

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,s parameters and build the EDS file. Users can easily apply Modbus RTU devices in DeviceNet applications with the I-7242D.

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”Cnange-of-State/Cyclic” connection
• Configuration facilitated by the use of specific EDS files
• Dedicated Explicit message interface for full Modbus interface

Modbus RTU Features

• Maximum number of subscribers: 10 Modbus slaves
• 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

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

Usage

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



Modules Support

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

Product specification
Hardware
CPU	80188, 40 MHz or compatible
SRAM/Flash/EEPROM	512 KB / 512 KB / 16 KB
Watchdog	Watchdog IC
CAN Interface
Controller	NXP SJA1000T with 16 MHz clock
Transceiver	NXP 82C250
Connector	5-pin screwed terminal block (CAN_L, CAN_SHLD, 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 33mm x 122mm (W x L x H)
Environment
Operating Temp.	-25 ~ 75 C
Storage Temp.	-40 ~ 80 C
Humidity	5 ~ 95% RH, non-condensing

Product features:
Converter
Converters
ZigBee type
Manufacturer	ICPDAS
Device features	Modbus
Interfaces	CAN
Converter type	Simple device
Device features	Simple device