I-7530A-MR
Modbus RTU to CAN converter. Converts Modbus RTU to CANbus Protocol. Supports operating temperatures between -25 to 75°C.
References & Support
Features
The I-7530A-MR Modbus RTU to CAN converter is helpful for data exchanging between the 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.
In pair-connection mode, this module provides the transparent communication between the RS-232/485/422 devices via CAN bus. The application architecture may be as follows.
Applications
Control System |
Features
- RoHS Design
- Fully compatible with ISO 11898-2 standard
- Programmable CAN bus baud rate from 10 kbps to 1 Mbps or user-defined baud rate
- Support CAN bus acceptance filter configuration
- Support firmware update via RS-232
- Provide utility tool for module setting and CAN bus communication testing
- Built-in jumper to select 120Ω terminator resistor
- CAN buffer: 128 data frames ; UART buffer: 256 bytes
- Power, data flow and error indicator for CAN and UART status
- Hardware Watchdog design
- Convert CAN message to specific ASCII command string (Normal mode)
- Convert specific ASCII command string to CAN message (Normal mode)
- Provide the transparent communication between the RS-232/485/422 devices via CAN bus (Pair-connection mode)
- Support function code 0x03/0x04/0x10 of Modbus RTU command for reading and writing CAN message (Modbus RTU mode)
Utility
- 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 format configuration
- RS-232/485/422 communication with checksum function selection
- Communication mode setting
- Easily transmit/receive CAN messages
Performance Test
RS-232/422 full-duplex communication mode |
|||
CAN setting |
RS-232/422 setting |
RS-232/422 command length |
The max frames/sec |
2.0B, 1Mbps |
115200,n,8,1 |
27 Bytes |
370 |
2.0B, 1Mbps |
230400,n,8,1 |
27 Bytes |
666 |
2.0B, 1Mbps |
460800,n,8,1 |
27 Bytes |
1250 |
Specifications
CAN Interface |
|
Controller |
Microprocessor inside with 96 MHz |
Transceiver |
NXP 82C250 |
Connector |
9-pin male D-Sub (CAN_L, CAN_H, N/A for others) |
Channels |
1 |
Baud Rate (bps) |
10 k, 20 k, 50 k, 100 k, 125 k, 250 k, 500 k, 800 k and 1 M (allow user-defined baud rate) |
Protection |
3000VDC power protection and 3750Vrms photo-couple isolation on CAN side |
Terminator Resistor |
Selectable 120Ω terminator resistor by jumper |
Support Protocol |
ISO-11898-2, CAN 2.0A and CAN 2.0B |
Pin Assignment |
C.I.A. DS-102 (CAN_H=7, CAN_L=2) |
UART Interface |
|
Connector |
14-pin terminal connector |
COM |
RS-232 : TxD, RxD, GND; RS-422 : TxD+, TxD-, RxD+, RxD-; RS-485 : DATA+, DATA- |
Baud Rate (bps) |
300,600,1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 |
Protection |
3000VDC power protection and 2500Vrms photo-couple isolation on UART side |
LED |
|
Round LED |
PWR/CAN/UART |
Power |
|
Power supply |
+10 ~ +30 VDC |
Power Consumption |
1.5 W |
Dip Switch |
Init (Firmware Update, Module Configuration)/Normal (Firmware Operation) |
Mechanism |
|
Installation |
DIN-Rail |
Dimensions |
72mm x 118mm x 35mm (W x L x H) |
Environment |
|
Operating Temperature |
-25 ~ 75 ℃ |
Storage Temperature |
-30 ~ 80 ℃ |
Humidity |
10 ~ 90% RH, non-condensing |