Description
The I-7530A-MR is designed to enable communication between RS-232/485/422 devices and the CAN devices. It supports three communication modes: “Normal”, “Modbus RTU”, “Pair-connection”.
In the Normal mode, the I-7530A-MR is designed to unleash the power of CAN bus via RS-232/485/422 communication method. It accurately converts ASCII format messages and CAN messages between RS-232/485/422 and CAN networks. This mode let you to communicate with CAN devices easily from any PC or programmable devices with RS-232/485/422 interface.
In Modbus RTU mode, it allows a Modbus RTU master to communicate with CAN devices on a CAN network. The following figure shows the application architecture of this mode.
Features
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RoHS Design
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Fully compatible with ISO 11898-2 standard
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Programmable CAN bus baud rate from 10 kbps to 1 Mbps or user-defined baud rate
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Supports CAN bus acceptance filter configuration
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Supports firmware update via RS-232
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Utility tool provided for module setting and CAN bus communication testing
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Built-in jumper to select 120Ω terminator resistor
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CAN buffer: 128 data frames ; UART buffer: 256 bytes
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Power, data flow and error indicator for CAN and UART status
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Hardware Watchdog design
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Converts CAN message to specific ASCII command string (Normal mode)
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Converts specific ASCII command string to CAN message (Normal mode)
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Provides transparent communication between the RS-232/485/422 devices via CAN bus (Pair-connection mode)
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Supports function code 0x03/0x04/0x10 of Modbus RTU command for reading and writing CAN message (Modbus RTU mode)
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CAN bus Baud Rate configuration
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CAN acceptance filter configuration
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CAN 2.0A or 2.0B specific selection
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RS-232/485/422 baud rate and data format configuration
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RS-232/485/422 communication with checksum function selection
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Communication mode setting
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Easily transmit/receive CAN messages
Specifications
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Hardware
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EEPROM
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16 KB (for system information), 10,000,000 erase/write cycles
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CAN Interface
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Transceiver
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NXP 82C250
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Connector
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9-pin male D-Sub (CAN_L, CAN_H, N/A for others)
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Channels
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1
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Baud Rate (bps)
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10 k, 20 k, 50 k, 100 k, 125 k, 250 k, 500 k, 800 k and 1 M (allow user-defined baud rate)
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Protection
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3000VDC power protection and 3750Vrms photo-couple isolation on CAN side
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Terminator Resistor
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Selectable 120Ω terminator resistor by jumper
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Support Protocol
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ISO-11898-2, CAN 2.0A and CAN 2.0B
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Pin Assignment
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C.I.A. DS-102 (CAN_H=7, CAN_L=2)
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UART Interface
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COM
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RS-232/RS-485/RS-422 (can’t be used simultaneously)
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Connector
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14-pin terminal connector
RS-232 : TxD, RxD, GND RS-422 : TxD+, TxD-, RxD+, RxD- RS-485 : DATA+, DATA- |
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Baud Rate (bps)
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300,600,1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400
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Protection
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3000VDC power protection and 2500Vrms photo-couple isolation on UART side
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LED
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Round LED
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PWR/CAN/UART
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Power
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Power supply
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+10 ~ +30 VDC
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Power Consumption
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1.5 W
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Dip Switch
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Init (Firmware Update, Module Configuration)/Normal (Firmware Operation)
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Mechanism
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Installation
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DIN-Rail
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Dimensions
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72mm x 118mm x 35mm (W x L x H)
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Environment
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Operating Temperature
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-25 ~ 75 ?
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Storage Temperature
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-30 ~ 80 ?
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Humidity
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10 ~ 90% RH, non-condensing
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Technical
I-7530-MR Modbus RTU to CAN Converter Datasheet
Applications
- Control System
- Building Automation
- Factory Automation
- Distributed data acquisition