ICP DAS USA tM-7530 User manual
The UART to CAN Bus Converter
(I-7530, I-7530T, I-7530-FT, I-7530A, I-7565, tM-7530)
User’s Manual
Warranty
All products manufactured by ICP DAS are under warranty regarding
defective materials for a period of one year from the date of delivery to the
original purchaser.
Warning
ICP DAS assumes no liability for damages resulting from the use of this
product. ICP DAS reserves the right to change this manual at any time without
notice. The information furnished by ICP DAS is believed to be accurate and
reliable. However, no responsibility is assumed by ICP DAS for its use, or for
any infringements of patents or other rights of third parties resulting from its
use.
Copyright
Copyright 2014 by ICP DAS. All rights are reserved.
Trademark
The names used for identification only may be registered trademarks of
their respective companies.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 1
Table of Contents
1.
2.
3.
4.
Introduction .......................................................................................................... 3
1.1
Common Features of CAN Bus Converter ..................................... 6
1.1.1
Hardware .......................................................................................... 6
1.1.2
Software............................................................................................ 6
Specifications of the UART to CAN Bus Converters ......................................... 7
2.1
Specifications ................................................................................... 7
2.2
Pin Assignment................................................................................. 9
2.3
Block Diagram ................................................................................ 11
2.4
Wire Connection ............................................................................. 13
2.5
Terminator resistor ......................................................................... 15
2.5.1
Init/Normal DIP-Switch .................................................................... 17
2.5.2
LED Indication ................................................................................ 18
Software Utility ................................................................................................... 20
3.1
How to configure and test the CAN converters ........................... 21
Command list ..................................................................................................... 32
4.1
tIIILDD…[CHK]<CR> ....................................................................... 34
4.2
TIIIL[CHK]<CR> ............................................................................... 35
4.3
eIIIIIIIILDD…[CHK]<CR> ................................................................. 36
4.4
EIIIIIIIIL[CHK]<CR> ......................................................................... 37
4.5
S[CHK]<CR> .................................................................................... 38
4.6
C[CHK]<CR> ................................................................................... 40
4.7
P0BBDSPAE[CHK]<CR> ................................................................ 41
4.8
P1B [CHK]<CR> .............................................................................. 43
4.9
P2BBDSPAE[CHK]<CR> ................................................................ 44
4.10
P3SBCCCCCCCCMMMMMMMM [CHK]<CR> ............................... 46
4.11
RA[CHK]<CR> ................................................................................. 48
4.12
General Error code for all command............................................. 49
5. Troubleshooting ................................................................................................. 50
Appendix A: Cable selection .................................................................................... 51
Appendix B: Install I-7565 driver .............................................................................. 52
Appendix C: CAN Baud Rate Calculating................................................................ 58
Appendix D: Filter setting ......................................................................................... 63
Appendix E: Pair Connection ................................................................................... 64
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 2
1. Introduction
CAN (Controller Area Network) is a serial bus control protocol
especially suited to structure intelligent industry devices networks and
build smart automatic control systems. By using the CAN Bus converters,
some programmable RS-232/RS-485/RS-422 or USB devices such as PC,
PAC or PLC, can be the master of a CAN network, and can control or
monitor the CAN devices via the CAN Bus converters.
In order to fit the market requirements, there are some functionalities
of the converters are expanded for some special applications. The
transparent mode is useful when the UART sensors or actuators need to
be a device of the CAN network. The pair connection mode helps the PC
to connect with other RS-232/RS-485/RS-422/USB devices via CAN Bus
for prompting the communication speeds or extending the communication
distance. The application architecture may be as follows.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 3
Node: If users would like to run the CAN converter in the transparent or
pair connection application. Set the CAN converter to the Pair
Connection Mode. Please refer to the section 3.1 for the details of
the Mode configuration.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 4
Here are the UART to CAN converters based on the different
functionalities.
 I-7530: The RS-232 to CAN Bus converter with 9-pin D-sub connector.
 I-7530-FT: The Intelligent RS-232 to low speed fault tolerant CAN Bus
converter.
 I-7530A: The Intelligent RS-232/485/422 to CAN Bus converter.
 I-7565: The USB (virtual COM port) to CAN Bus converter with 9-pin
D-sub connector on the CAN side.
 tM-7530: The tiny-size RS-232 to CAN Bus converter with 3-pin spring
type connector.
Table: The Mail Difference between UART to CAN converters
tM-7530 I-7530
I-7530A
I-7565
I-7530-FT
Interface
RS-232
O
O
O
X
O
RS-485
X
X
O
X
X
RS-422
X
X
O
X
X
USB
X
X
X
O
X
(Virtual COM)
CAN Bus
O
O
O
O
X
(11898-2)
CAN Bus
X
X
X
X
O
(11898-3)
UART Baud Rate
Max. (bps)
230400 115200 115200
921600
115200
CAN Baud Rate
Max. (bps)
1000 k
1000 k
1000 k
1000 k
125 k
Dimension
Size
Tiny
Palm
Palm
Palm
Palm
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 5
1.1 Common Features of CAN Bus Converter
1.1.1 Hardware





NXP 82C250/TJA1042 CAN transceiver.
Max. transmission distance over 1000 m based on CAN specification.
Supports both CAN 2.0A and CAN 2.0B.
Built-in a Dual-Watchdog function in the module.
Provides RS-232/RS-422/RS-485/USB 2.0 communication interface.
1.1.2 Software








Configuration by the software utility.
Provides power, data flow and error LED indicator.
Supports pair connection mode and transparent mode.
Provides receive software buffer on CAN and UART side.
Allows user-defined CAN baud rate.
Supports user-defined end character on pair connection mode.
Offers Listen Only Mode.
Returns time stamp of the CAN messages.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 6
2. Specifications of the UART to CAN Bus Converters
2.1 Specifications
Item
I-7530
I-7530T
tM-7530
I-7530A I-7530A-MR
I-7530-FT
I-7565
CAN Interface
Channel number
1
Spring type
Connector
9-pin male D-Sub (CAN_L, CAN_H, N/A for others)
connector
Baud Rate (bps)
10 k ~ 1 Mbps
DC-DC: 3000 VDC
Isolation
None
photocoupler: 2500 Vrms
DC-DC: 3000 VDC
photocoupler:
2500 Vrms
None
Jumper-selected 120Ω terminator resistor
Terminator Resistor
1 KΩ for CAN_H
Jumper-selected
and CAN_L
120Ω terminator
resistor
Specification
ISO 11898-2
ISO 11898-3
ISO 11898-2
RS-232/USB Interface
Connector
9-pin female D-Sub (TxD, RxD,
RS-232 (TxD, RxD, GND),
9-pin female D-
USB Type B
GND, N/A for others)
RS-485, RS-422
Sub (TxD, RxD,
(Virtual COM)
(Modbus slave functions
GND, N/A for
for the I-7530A-MR)
others)
110 ~ 460800
110 ~ 115200
Baud Rate (bps)
110 ~ 230400
Data bit
5, 6, 7, 8
Stop bit
1, 2
Parity bit
None, Odd, Even
110 ~ 115200
LED
Round LED
ON LED
PWR LED
ON LED
ERR LED
CAN LED
ERR LED
UART LED
Power
Protection
Power reverse polarity protection, Over-voltage brown-out protection
Power Consumption 1W
Mechanism
Installation
DIN-Rail
Dimensions
52mm x 86mm
(W x L x H)
x 32mm
1.5W
1W
72mm x 118mm x 33mm
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 7
110 ~ 921600
Environment
Operating Temp.
-25 ~ 75 ℃
Storage Temp.
-30 ~ 80 ℃
Humidity
10 90% RH, non-condensing
Note: 1. The CAN converters can’t handle the data reception and
transmission of the RS-232 interface at the same time. That is to
say that the full-duplex communication mode of RS-232 devices
is not supported.
2. About more information of the I-7530A-MR, please refer to the
web site as follows.
http://www.icpdas.com/root/product/solutions/industrial_communication/fieldbus/can_bus/converter/i7530a-mr.html
3. Users need to Install the USB driver before using I-7565 for the
first time. Please refer to Appendix B Install I-7565 Driver
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 8
2.2 Pin Assignment
The UART connector for I-7530/I-7530FT/I-7530T/tM-7530:
Table: RS-232 DB9 Female Connector (CN1)
Terminal
3-wire RS-232
1
N/A
2
TXD
3
RXD
4
N/A
5
GND
6
N/A
7
N/A
8
N/A
9
N/A
The UART connector for I-7530A:
Table: RS-232/485/422 Connector (CN1)
Terminal
RS-232/485/422
1
(Y)DATA+ (RS-485)
2
(G)DATA- (RS-485)
3
N/A
4
Tx+ (RS-422)
5
Tx- (RS-422)
6
Rx+ (RS-422)
7
Rx- (RS-422)
8
N/A
9
RXD (RS-232)
10
TXD (RS-232)
11
(B)GND (RS-232)
12
N/A
13
+Vs (10 ~ 30 VDC Power)
14
(B)GND (Power)
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 9
(Y)DATA+
(G)DATA--
Tx+
TxRx+
Rx--
RXD
TXD
(B)GND
--
+Vs
(B)GND
The CAN connector for I-7530/I-7530FT/I-7530T/I-7530A/I-7565:
Table: CAN DB9 Male Connector (CN2)
Terminal
2-wire or 3-wire CAN
1
N/A
2
CAN Low
3
CAN GND
4
N/A
5
CAN GND
6
N/A
7
CAN High
8
N/A
9
N/A
The Power/CAN connector for tM-7530:
Table: Power / CAN Connector (CN1/CN2)
Terminal
Power
1
+Vs (10 ~ 30 VDC Power)
2
GND (Power)
3
F.G.
Terminal
CAN
1
CAN_L
2
CAN_H
3
CAN_GND
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 10
2.3 Block Diagram
The I-7530/I-7530T and tM-7530 provide CAN and RS-232
communication interfaces. The isolator is on the CAN side. The connector
of the CAN port to the I-7530/I-7530T and tM-7530 are the D-Sub 9-pin
male connector and the spring type connector respectively.
Figure: The block diagram of the I-7530/I-7530T and tM-7530
The hardware profile of the I-7530-FT is the same as the I-7530/I7530T. The main difference between I-7530-FT and I-7530/I-7530T is
followed CAN specification. The I-7530-FT is ISO 11898-3 device, which
is also called low speed fault tolerance (LSFT) CAN device. There is no
isolator on the I-7530-FT.
Figure: The block diagram of the I-7530-FT
The I-7530A provides four communication interfaces in one module.
They are CAN, RS-232, RS-485 and RS-422 interfaces. Because the RS232, RS-485 and RS-422 are the same UART port, users can’t use them
at the same time. The I-7530A also has isolator on the CAN side.
Figure: The block diagram of the I-7530A
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 11
The I-7565 provides CAN and USB slave communication interfaces.
On the USB interface, the I-7565 provides the virtual COM driver. Users
can use the I-7565 instead of the I-7530 if the device only have USB host
interface. The I-7565 is powered by the USB interface, it doesn’t need
external power. The isolator of the I-7565 is on the CAN side.
Figure: The block diagram of the I-7565
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 12
2.4 Wire Connection
The I-7530/I-7530T, I-7530-FT, and tM-7530 are RS-232 DCE devices,
and uses the D-sub 9 pins female connector for the RS-232 interface. The
following figure describes the wire connection between the PC and the
modules.
Figure: Connects the I-7530/I-7530T, I-7530-FT, or tM-7530 to the PC
The I-7530A has one UART port with three kinds of interfaces. The
following figure is the wire connection of the I-7530A to other UART
device. When users use the RS-485 or RS-422 interface, it is strongly
recommend to use twisted pair cable for the communication media.
Figure: The UART wire connection to the I-7530A
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 13
The pin assignments of the CAN port (DB9 male) on the I-7530 series
including I-7530, I-7530T, I-7530-FT, I-7530A, and I-7565 follows both the
CANopen DS102 profile and the appendix C of the DeviceNet
specifications. The wire connections are as follows.
Figure: The CAN Bus wire connection to the I-7530 series
The tM-7530 uses spring type connector on the CAN interface. The
wire connection to the tM-7530 is below.
Figure: The CAN Bus wire connection to the tM-7530
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 14
2.5 Terminator resistor
According to the ISO 11898 specifications, the ISO 11898-2 CAN Bus
network must be terminated by two terminator resistors (120Ω) for proper
operation, as shown in the below figure. If there are not only two
terminator resistors or only have one terminator resistor on the CAN bus,
the CAN network may be malfunction. About the terminator resistor of the
I-7530-FT (follows the ISO 11898-3 specification), each I-7530-FT has its
own terminator resistor. Users don’t need to take care about that.
Figure: Terminator resistor for the ISO 11898-2 CAN network
If users would like to enable or disable the terminator resistor inside
the CAN converters, it is necessary to open the cover of the CAN
converters and use jumper to do that. Here are the descriptions of how to
enable or disable the terminator resistor of the CAN converters.
Status
JP3 position
Enable (default)
(Activate)
Disable
(Deactivate)
Status
JP4 position
Enable (default)
(Activate)
Disable
(Deactivate)
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 15
Status
JP4 position
Enable (default)
(Activate)
Disable
(Deactivate)
There is no terminator resistor in the tM-7530. Therefore, if users
would like to use terminator resistor, it is necessary to wire a 120Ω
resistance on the CAN bus, as following figure.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 16
2.5.1 Init/Normal DIP-Switch
The Init/Normal DIP-Switch is used to set the module run in the
configuration mode or the operation mode. After users get the module, the
configuration generally needs to be done first. Here is the description
about the Configuration mode and the Operation mode.
 Configuration mode: This mode is used to set the UART or CAN
communication parameters for baud rate, data format, filter, etc. After
finishing the configuration, all of the parameters will be stored in the
EEPROM of the CAN converters.
 Operation mode: This mode is used to convert the UART data and
CAN messages with each other. Users can also use the UART
commands to get module information or change some configuration of
the UART or CAN parameters. Some of UART commands like “P2”
and “P3” for changing the configuration in the normal mode will not be
stored in the EEPROM. About the detail description, please refer to
chapter 4 Command List.
The DIP-switch position for different modules may be different. The
DIP-switch of the I-7530/I-7530T, I-7530-FT, I-7530A, and I-7565 are on
the back of the module, as following figure.
The DIP-switch of the tM-7530 is in the bottom of the module.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 17
Mode
Position
Normal
Init
2.5.2 LED Indication
Except the I-7530A-MR, all of the CAN converters provide 2 LED
indicators. The ON LED is turned on when the module is running in
Operation mode. If the module is in Configuration mode, the ON LED is
flashed once per second. The ERR LED is used for indicating if the
module is going wrong or not. If there is no error happened, the ERR LED
is always turned off. If some error occurs, different CAN converters may
have different behavior of the ERR LED. When the ERR LED is turned on
or flashed, users can use the UART command string “S[CHK]<CR>” to get
the details about the error. If the error is happened due to the overflow of
the CAN or RS-232 software FIFO, users can use the UART command
string “C[CHK]<CR>” to clear the error, or users may need to reboot the
CAN converter for recovery.
The position and behavior of the LED indicators to the I-7530/I-7530T,
I-7530A, and I-7565 is as following figure.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 18
LED Name
ON LED
ERR LED
Condition
Configuration Mode
Operation Mode
Some errors occurred
LED Status
Flashes once per second
Turn on when no data needs
to be send to CAN bus
Flash once when sending a
CAN message
Always turned on
The following figure shows the position and behavior of the LED
indicators to the tM-7530.
LED Name
RUN LED
ERR LED
Condition
Configuration Mode
Operation Mode
FIFO overflow
CAN Bus Off
CAN Error Passive
Some errors occurred
LED Status
Flash once per second
Turn on when no data needs
to be send to CAN bus
Flash once when sending a
CAN or UART message
Always turned on
Flash
Note: The tM-7530 provides 256 CAN frame FIFO, and 1000 CAN frame
FIFO for other CAN converter.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 19
3. Software Utility
This section guide you how to configure the CAN converters and test
them by using the VxCAN Utility. Users can free download the VxCAN
Utility from the ICP DAS web site or get it from the ICP DAS fieldbus CD
in the product package.
Download & CD-ROM path:
http://ftp.icpdas.com/pub/cd/fieldbus_cd/can/virtual_can/vxcan_utility/
CD:\fieldbus_cd\can\virtual_can\vxcan_utility\
The VxCAN Utility is based on the Virtual CAN technology which is
developed by the ICP DAS and is used to integrate the CAN interfaces of
the different CAN converters from the ICP DAS. All of the CAN interfaces
found by the PC will be sequentially mapping to the virtual CAN ports by
the Virtual CAN driver. Users just use the virtual CAN ports to develop
their application, and don’t need to know what kind of CAN converter they
use. It is very useful for transplanting the application to other platform with
different CAN devices. Besides, the VxCAN Utility also provides the
configuration interface for UART to CAN converters. Users can use this
tool to configure the CAN converter, test the CAN devices, monitor the
CAN network and analysis the CAN messages. For more information
about the VxCAN Utility, please refer to the website or the VxCAN Utility’s
manual :
http://www.icpdas.com/root/product/solutions/industrial_communicatio
n/fieldbus/can_bus/other/vxcan_driver.html
Note: If users would like to use the old version utility tool of the CAN
converter, please refer to the following path.
http://ftp.icpdas.com/pub/cd/fieldbus_cd/can/converter/i7530/utility/old_version
http://ftp.icpdas.com/pub/cd/fieldbus_cd/can/converter/i7530a/utility/old_version
http://ftp.icpdas.com/pub/cd/fieldbus_cd/can/converter/i7565/utility/old_version
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 20
3.1 How to configure and test the CAN converters
Configuration Interface:
 Step 1. Before powering on the CAN converters, users must set them
to the Init mode. Users need to switch the Init/Normal DIPSwitch to Init position described in the section 2.5.1.
Afterwards, power on the CAN converter and the Run LED
indicator will be flashed once per second.
 Step 2. Connect the available COM port of the PC to the CAN
converters, and execute the VxCAN Utility.
 Step 3. Click the button
the PC.
to search all CAN devices connected to
 Step 4. After finishing the search, the CAN converters (for example
tM-7530 and I-7530) which are connecting to the PC or have
connected to the PC will be list in the left side of the VxCAN
Utility. If the tM-7530 is in Init mode, the VxCAN utility shows
the “Init” information in the list.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 21
 Step 5. Click the tM-7530-Init in the list, the module configuration
dialog is popped up. Different CAN converters may have the
different information in the pop-up dialog. All of the settings in
the module configuration dialog will be saved into the
EEPROM of the module.
The configuration is divided to three areas with different color.
They are UART, Communication, and CAN configuration area.
 UART Configuration:
* Baud rate: Set the UART baud rate. Different CAN
converters have different max. UART baud rates. Users
can select the proper UART baud for the CAN converters.
* Data bit: Set the UART data bit. The CAN converters
support 4 kinds of data bit configuration.
* Stop bit: Set the UART stop bit. The CAN converters
support 2 kinds of stop bit configuration.
* Parity bit: Set the UART parity bit. The CAN converters
support 3 kinds of parity bit configuration.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 22
* Add Checksum: Set the CAN converters to enable or
disable the checksum mechanism in the UART
communication. If enable the checksum function, all UART
strings from / to the tM-7530 must append two bytes of the
checksum information. For checksum algorithm, please
refer to the Node in the page 33.
* Error Response: Set the CAN converters to enable or
disable the error response mechanism in the UART
communication. If enable the error response, the error
code will be replied when users use the wrong UART
command string to communicate with the CAN converters.
* Timestamp Response: Set the CAN converters to enable
or disable the timestamp response mechanism. If enable
the timestamp response, the timestamp of each CAN
message will be appended in the UART string when the
CAN message are output from the UART interface of the
CAN converter. This function may be invisible because it
is not supported by the selected CAN converters.
 CAN Configuration:
* CAN specification: Decide which CAN specification, CAN
2.0A (11-bits CAN ID) or CAN 2.0B (29-bits CAN ID), will
be implemented.
* CAN baud rate: Set the CAN baud rate. The CAN
converters support several kinds of standard baud, such as
10K, 20K, 50K, 125K, 250K, 500K, 800K, 1000K, and
83.3K bps. If these baud rates don’t fit the users’
application, use user-defined CAN baud rate to configure
the special CAN bauds.
* User-defined CAN baud rate: If the user-defined CAN
baud rate is used, users need to fill the value of the baud
rate in the “Required Baud Rate” field and click the
“Calculated” button to calculate the real value. If the real
baud rate is not the same as the value in the “Required
Baud Rate” filed, it means that the required baud rate can’t
be reached because of the hardware limitation. The closest
baud value will be implemented for instead.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 23
If users want to get more information of the real baud rate,
click the “Advanced” button. Users can select the proper
parameters of the real baud rate for the applications.
The field “Sample Point” means the percent of the sampling
position of one bit data of the CAN message. The field
“SJW” is the short for synchronization jump width. It is used
to solve the problem of the phase shift between clock
oscillators of different CAN devices. Generally, the sample
point is set to close 87.5%, and the SJW is set to 1.
* Set CAN ID Filter: Click the button to pop up the
configuration dialog of the CAN ID filter. Users can use the
acceptance code and acceptance mask to determine the
accepted CAN messages by CAN message IDs.
About how to calculate the Acceptance Code and the
Acceptance Mask, please refer to the Appendix D.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 24
 Communication Configuration: It is used to set the
communication mode of the CAN converters. In normal
mode, the UART interface of the CAN converters only
accept the command strings defined in the section 4. Any
UART messages which don’t follow the command strings
will be regard as wrong messages. When the CAN
converters transfer the CAN messages to UART interface,
the CAN messages are presented by the command strings.
In pair connection mode, the CAN converters will transfer
any UART message to the data field of the CAN messages
whose message ID are fixed and predefined by the utility
tool. It is useful for transparent applications or pair
connection applications. The tM-7530 has an additional
communication mode, “Listen Only” mode. In this mode, the
tM-7530 can only receive the CAN messages and can’t
send any CAN signal (include CAN Error Frame and the
change of the ACK field) to the CAN network.
 Pair Connection Mode: When uses choose the Pair
Connection in the Communication Mode, the pair connection
configuration
field
will
be
presented.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 25
* Fixed CAN ID: Set the fixed CAN ID for the transmitted UART
data to the CAN network. Each CAN converter must have
different configuration of the fixed CAN ID. If there are more
than one CAN converter in the pair connection mode, the
same fixed CAN ID will make the CAN ID conflict error while
these CAN converter are transferring the UART data to the
CAN message at the same time.
* Response with CAN ID: Users can decide if the CAN ID
needs to be transmitted with the UART data to the UART
interface. In the pair connection application (see the picture of
the section 1), the CAN ID always doesn’t need to be send to
the UART interface.
* End Characters of UART Commands: This function is used
to set the end characters of the UART command received by
the CAN converter. The UART data transferred from the CAN
messages will not append the specific end characters. If the
CAN converter gets the specific end characters from the
UART interface, it is regarded as the end of the UART
command, and the CAN converter will start to transfer the
UART command to the CAN messages immediately.
 None: None end character is used. When the pair
connection command timeout is reached or the UART
buffer is full, the CAN converter will start to transfer the
UART data to the CAN network.
 CR: Set the end character of the UART command to CR.
The hexadecimal value of the ASCII code is ‘0x0D’.
 LF: Set the end character of the UART command to CR.
The hexadecimal value of the ASCII code is ‘0x0A’.
 CR_LF: Set the end characters of the UART command to
two characters, CR and LF. The hexadecimal value of the
ASCII code is ‘0x0D’ and ‘0x0A’.
 LF_CR: Set the end characters of the UART command to
two characters, LF and CR. The hexadecimal value of the
ASCII code is ‘0x0A’ and ‘0x0D’.
 User-defined: This function allows users to define the
special end characters, and is only supported by the tM7530. The UserDefined1 or UserDefined2 are used to
configure one or two end characters. Take followings
figure for example, select the item “User Defined2” and set
the hexadecimal value of the end characters to be the
0x0D and 0x0A. When the CAN converter get the UART
messages with end characters ‘0x0D’ and ‘0x0A’, it is
regarded as the ending of the UART message. The CAN
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 26
converter will start to transfer the UART message to the
CAN Bus.
* Pair Connection Command Timeout: Only the tM-7530 and
I-7530A-MR supports this function. The CAN timeout is used
to decide the transformation timing of the CAN messages to
the UART messages. After the CAN converter receives the
CAN message, it will not transfer the CAN message to UART
message until the time of the CAN timeout passes. If users
would like to transfer the CAN message to UART messages
immediately, set this value to 0. The function of the UART
timeout is similar with the CAN timeout. It is decide the
transformation timing of the UART messages to CAN
messages. Only the configuration of the end characters of the
UART message is none, the UART timeout is useful. After
receiving one character from the UART interface, the CAN
converter will not transfer the data until the time of the UART
timeout passes.
About details of the pair connection, please refer to the Appendix
E for reference.
 Save and default value button:
After finishing the configuration, users can click the button “Save
All Setting” to save the configuration in to the EEPROM of the
CAN converter. If users would like to recover the parameters to
the factory default, click “Load Default Setting” button to recover
all of the configuration parameters to be default value. Afterwards,
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 27
users can use the button “Save All Settings” to save the default
parameters in to the EEPROM of the CAN converter.
The default values of the parameters of the CAN converter are
shown below.
RS-232: RS-232 Baud rate = 115200/921600(for I-7565)
Data Bit
=8
Stop Bit
=1
Parity
= None
Add Checksum
= No
Error Response
= No
TimeStamp Response = No
CAN:
CAN Specification = 2.0A
CAN bus Baud rate = 125K
Acceptance Code = 000
Acceptance Mask = 000
Communication:
Mode: Normal
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 28
Test Interface:

Step 1. Set the Init/Normal DIP switch of the CAN converter to normal
mode, see the section 2.5.1. When the CAN module runs on
the normal mode, the run LED indicator will be turned on. If the
CAN converter sends or receives the CAN messages, the run
LED will flash once per message.
 Step 2. Connect the COM port of PC to the CAN converter, and
execute the VxCAN Utility.
 Step 3. Click the search button
connected to the PC.
to search all CAN converters
 Step 4. Afterwards, the searched CAN modules are listed in the left
window of the VxCAN Utility
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 29
 Step 5. Click the CAN port of the CAN converter to set the CAN
parameters of the CAN converter.
Check the “Active Port” and Click “Confirm” button to enable the CAN
port of the CAN converter. The parameters set here are not stored in the
EEPROM. If users would like to configure the other parameters expect the
CAN parameters, please use Configuration interface of the VxCAN Utility
to do that.
 Step 6. Click “Start” button
to open test interface.
Send Area
Received Area
The test interface is divided to two areas. One is for sending CAN
messages, and the other is for reception. If users want to send CAN
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 30
message, fill the data into the corresponding field, and click “Send” button.
If the CAN converter gets any CAN messages, they will be shown in
received area automatically. About the details for the VxCAN Utility
operation please refer to the users’ manual of the VxCAN Utility in the
following web site.
http://ftp.icpdas.com/pub/cd/fieldbus_cd/can/virtual_can/vxcan_utility/
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 31
4.Command list
For easy application, we provide 11 command strings to allow users
to send and received commands and responses through the CAN
Converter, like I-7530. It can cover most applications of different requests.
The general formats of the commands for the CAN Converter modules are
in ASCII data format and given below:
Command Format: <Command>[CHK]<CR>
<Command> : The RS-232/RS-485/RS-422/USB commands of the CAN
Converter.
[CHK]
: 2-character checksum value. It is effective only if the
checksum mechanism is set to enable. For checksum
algorithm, please refer to the Node in the page 33.
<CR>
: All RS-232/RS-485/RS-422/USB commands of the CAN
Converter must end with the character “<CR>” (The
ASCII value is 13).
The 11 command formats are given in the following table. More
detailed information related to of the each command will be described in
the following sub sections.
Table: Command list table
Command
Description
tIIILDD…[CHK]<CR>
Send or receive a standard data
frame.
TIIIL[CHK]<CR>
Send or receive a standard remote
frame.
eIIIIIIIILDD…[CHK]<CR>
Send or receive an extended data
frame.
EIIIIIIIIL[CHK]<CR>
Send or receive an extended remote
frame.
S[CHK]<CR>
Read the status value of CAN
Converter.
C[CHK]<CR>
Clear CAN Converter. FIFO error flag
of overflow.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 32
P0BBDSPAE[CHK]<CR>
*Change the RS-232/RS-485/RS422/USB configuration and save it
into EEPROM.
P1B [CHK]<CR>
*Change the CAN configuration and
save it into EEPROM.
P2BBDSPAE[CHK]<CR>
Change the RS-232/RS-485/RS422/USB configuration and those
parameter will not be saved.(only for
firmware version 3.00 or more)
P3SBCCCCCCCCMMMMMMMM Change the CAN configuration and
[CHK]<CR>
those parameters will not be saved.
(only for firmware version 3.00 or
more)
RA[CHK]<CR>
Reboot the CAN Converter module.
* Note:
This command will write parameters into EEPROM and the
EEPROM is limited to 100,000 erase/write cycles.
Checksum algorithm:
The checksum [CHK] is 2-characters of the sum of the command
message, from first character to the character before <CR>. When
calculate checksum, the value of [CHK] is zero.
For example:
Command: Reboot the CAN Converter module, “RA[CHK]<CR>”.
1. Sum of the string = ‘R’ + ‘A’ = 52h + 41h = 93h.
2. Therefore the checksum is 93h and so [CHK]=”93”.
3. The command string with checksum =”RA93<CR>”.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 33
4.1 tIIILDD…[CHK]<CR>
 Description: Send or receive a standard CAN data frame.
 Syntax: tIIILDD…[CHK]<CR>
t
III
L
DD…
Represent a standard (2.0A) data frame.
11 bits Identifier (000~7FF)
Data length (0~8)
Input data frame value according to the data length
(00~FF)
 Response: Valid command: No response
Invalid command: ?<Error Code><CR>
 Note:
It is necessary to enable the “Error Response” function in the
CAN Converter Utility, in order to receive Syntax and/or
communication error information at the host PC.
 Example:
Command: t03F6112233445566<CR>
Send a CAN message with a standard data frame. ID=03F,
DLC=6, data1=11, data2=22, data3=33, data4=44, data5=55 and
data6=66.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 34
4.2 TIIIL[CHK]<CR>
 Description: Send or receive a standard CAN remote frame.
 Syntax: TIIIL[CHK]<CR>
T
III
L
Represents a standard (2.0A) remote frame.
11 bits Identifier (000~7FF)
Data length (0~8)
 Response: Valid command: No response
Invalid command: ?<Error Code><CR>
 Note:
It is necessary to enable the “Error Response” function in the
CAN Converter Utility, in order to receive Syntax and/or
communication error information at the host PC.
 Example:
Command: T2E88<CR>
Send a CAN message with a standard remote frame. ID=2E8,
DLC=8.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 35
4.3 eIIIIIIIILDD…[CHK]<CR>
 Description: Send or receive an extended CAN data frame.
 Syntax: eIIIIIIIILDD…[CHK]<CR>
e
IIIIIIII
L
DD…
Stands for the extended (2.0B) data frame.
29 bits Identifier (00000000~1FFFFFFF)
Data length (0~8)
Input data frame value according to the data length
(00~FF)
 Response: Valid command: No response
Invalid command: ?<Error Code><CR>
 Note:
It is necessary to enable the “Error Response” function in the CAN
Converter Utility, in order to receive Syntax and/or communication
error information at the host PC.
 Example:
Command: e1234567851122334455<CR>
Send a CAN message with an extended data frame. ID=12345678,
DLC=5, data1=11, data2=22, data3=33, data4=44 and data5=55.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 36
4.4 EIIIIIIIIL[CHK]<CR>
 Description: Send or receive an extended CAN remote frame.
 Syntax: EIIIIIIIIL[CHK]<CR>
E
IIIIIIII
L
Stands for the extended (2.0B) CAN remote frame.
29 bits Identifier (00000000~1FFFFFFF)
Data length (0~8)
 Response: Valid command: No response
Invalid command: ?<Error Code><CR>
 Note:
It is necessary to enable the “Error Response” function in the CAN
Converter Utility, in order to receive Syntax and/or communication
error information at the host PC.
 Example:
Command: E010156786<CR>
Send a CAN message with an extended remote frame.
ID=01015678, DLC=6.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 37
4.5 S[CHK]<CR>
 Description: Read the CAN Converter CAN Baud Rate and error
flag message.
 Syntax: S[CHK]<CR>
S
Command character.
 Response: Valid Command: !CFFTTRRO[CHK]<CR>
Invalid command: ?<Error Code>[CHK]<CR>
!
Delimiter for valid command
C
current baud rate setting of CAN
FF
CAN register
TT
CAN transmit error counter
RR
CAN receive error counter
O
CAN or RS-232/RS-485/RS-422/USB FIFO Overflow flag
 Note:
It is necessary to enable the “Error Response” function in the CAN
Converter Utility, in order to receive Syntax and/or communication
error information at the host PC. Furthermore, all response results
are shown in the ASCII format. Users need to make an ASCII to hex
format transformation in order to understand what the meaning is
based on the following table.
Table: CAN baud rate list
AsciiToHex(C)
Description
0
10K baud rate of CAN
1
20K baud rate of CAN
2
50K baud rate of CAN
3
100K baud rate of CAN
4
125K baud rate of CAN
5
250K baud rate of CAN
6
500K baud rate of CAN
7
800K baud rate of CAN
8
1000K baud rate of CAN
9
83.3K baud rate of CAN
A
User-defined baud rate of CAN
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 38
Table: CAN register list
AsciiToHex(FF)
Description
Bit 7
Bus Off Mode
Bit 6
Error Passive Mode
Bit 5
Reserved
Bit 4
I-7530 series: Overrun Buffer
tM-7530: Reserved
Bit 3
Stuff Error General
Bit 2
CRC Error General
Bit 1
Form Error General
Bit 0
Acknowledgment Error General
Table: CAN or RS-232/RS-485/RS-422/USB FIFO overflow flag list
AsciiToHex(O)
Description
Bit 3
Reserved
Bit 2
Reserved
Bit 1
RS-232/RS-485/RS-422/USB FIFO
Overflow
Bit 0
CAN FIFO Overflow
 Example:
Command: S<CR>
Receive: !50000000<CR>
Obtain some current information on the I-7530 module. The
response will show the following results: CAN baud rate=250K,
CAN register= normal, CAN transmit error counter=0, CAN receive
error counter=0 and CAN/RS232 FIFO= normal.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 39
4.6 C[CHK]<CR>
 Description: Clear the CAN Converter FIFO overflows error flag on
the module.
 Syntax: C[CHK]<CR>
C
Command character.
 Response: Valid Command: No response. This will turn the ERR
LED off after the ERR LED was turned on as a result of
the CAN Converter FIFO overflow error flag.
Invalid command: ?<Error Code>[CHK]<CR>
 Note:
It is necessary to enable the “Error Response” function in the CAN
Converter Utility, in order to receive Syntax and/or communication
error information at the host PC.
 Example:
Command: C<CR>
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 40
4.7 P0BBDSPAE[CHK]<CR>
 Description: Change the RS-232/RS-485/RS-422/USB
configurations of the CAN Converter module. Module
will be rebooted after saving these parameters into
EPROM successfully.
 Syntax: P0BBDSPCE[CHK]<CR>
P0
Command character
BB
RS-232/RS-485/RS-422/USB Baud rate
D
Data bit
0 = 5 bits Data formation
1 = 6 bits Data formation
2 = 7 bits Data formation
3 = 8 bits Data formation
S
Stop bit (0=1 stop bit, 1=2 stop bits)
P
Parity (0=None, 1=Odd, 2=Even)
C
Checksum (0=No, 1=Yes)
E
Error Response (0=No, 1=Yes);
Table: RS-232/RS-485/RS-422/USB baud rate list
BB
Description
00
110 bps baud rate of RS-232
01
150 bps baud rate of RS-232
02
300 bps baud rate of RS-232
03
600 bps baud rate of RS-232
04
1200 bps baud rate of RS-232
05
2400 bps baud rate of RS-232
06
4800 bps baud rate of RS-232
07
9600 bps baud rate of RS-232
08
19200 bps baud rate of RS-232
09
38400 bps baud rate of RS-232
0A
57600 bps baud rate of RS-232
0B
115200 bps baud rate of RS-232
0C
230400 bps baud rate of RS-232, only for I-7565 and tM-7530
0D
460800 bps baud rate of RS-232, only for I-7565
0E
921600 bps baud rate of RS-232, only for I-7565
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 41
 Response: A valid command will let the module write the RS232/RS-485/RS-422/USB parameters into the EEPROM
and then reboot the system.
Invalid command: ?<Error Code><CR>
 Note:
It is necessary to enable the “Error Response” function in the CAN
Converter Utility, in order to receive Syntax and/or communication
error information at the host PC.
I-7565 supports only one 921600 baud rate on the firmware version
2.X or before.
 Example:
Command: P00B30000<CR>
Set the RS-232/RS-485/RS-422/USB baud rate=115.2K, data
bit=8, stop bit=1, none parity, no checksum and No error
responses into the CAN Converter module and then reboot the
CAN Converter module.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 42
4.8 P1B [CHK]<CR>
 Description: Change the CAN configuration of CAN Converter
module. Module will be rebooted after saving these
parameters into EEPROM successfully.
 Syntax: P1B[CHK]<CR>
P1
B
B
0
1
2
3
4
5
6
7
8
9
Command character
CAN Baud rate
Table: CAN baud rate list
Description
10K baud rate of CAN
20K baud rate of CAN
50K baud rate of CAN
100K baud rate of CAN
125K baud rate of CAN
250K baud rate of CAN, I-7530-FT does not support
500K baud rate of CAN, I-7530-FT does not support
800K baud rate of CAN, I-7530-FT does not support
1000K baud rate of CAN, I-7530-FT does not support
83.3K baud rate of CAN, I-7530-FT does not support
 Response: A valid command will write the CAN configuration baud
rate into the EEPROM and then reboot the module.
Invalid command: ?<Error Code><CR>
 Note:
It is necessary to enable the “Error Response” function in the CAN
Converter Utility, in order to receive Syntax and/or communication
error information at the host PC. This command does not support
user-defined CAN baud rate function.
 Example:
Command: P14<CR>
Set the CAN baud rate=125K into the I-7530 module and then
reboot the I-7530 module.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 43
4.9 P2BBDSPAE[CHK]<CR>
 Description: Change and apply the RS-232/RS-485/RS-422/USB
parameters. These parameters will not be saved. When
the module is rebooted, the RS-232/RS-485/RS422/USB parameters will be recovered to the previous
setting.
 Syntax: P2BBDSPCE[CHK]<CR>
P2
BB
D
S
P
C
E
BB
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
Command character
RS-232/RS-485/RS-422/USB Baud rate
Data bit
0 = 5 bits Data formation
1 = 6 bits Data formation
2 = 7 bits Data formation
3 = 8 bits Data formation
Stop bit (0=1 stop bit, 1=2 stop bits)
Parity (0=None, 1=Odd, 2=Even)
Checksum (0=No, 1=Yes)
Error Response (0=No, 1=Yes);
Table: RS-232/RS-485/RS-422/USB baud rate list
Description
110 bps baud rate of RS-232
150 bps baud rate of RS-232
300 bps baud rate of RS-232
600 bps baud rate of RS-232
1200 bps baud rate of RS-232
2400 bps baud rate of RS-232
4800 bps baud rate of RS-232
9600 bps baud rate of RS-232
19200 bps baud rate of RS-232
38400 bps baud rate of RS-232
57600 bps baud rate of RS-232
115200 bps baud rate of RS-232
230400 bps baud rate of RS-232, only for I-7565
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 44
0D
0E
460800 bps baud rate of RS-232, only for I-7565
921600 bps baud rate of RS-232, only for I-7565
 Response: A valid command will let the module to apply the RS232/RS-485/RS- 422/USB configuration parameters.
Invalid command: ?<Error Code><CR>
 Note:
It is necessary to enable the “Error Response” function in the CAN
Converter Utility, in order to receive Syntax and/or communication
error information at the host PC.
This function just supports firmware version 3.00 or more.
 Example:
Command: P20B30000<CR>
The module’s RS-232/RS-485/RS-422/USB configuration will be
change to baud rate=115.2K, data bit=8, stop bit=1, none parity,
no checksum and no error responses. When CAN Converter
module was rebooted, the RS-232/RS-485/RS-422/USB
parameter will be recovered to the previous setting.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 45
4.10 P3SBCCCCCCCCMMMMMMMM [CHK]<CR>
 Description: Change the CAN configuration of CAN Converter
module. This command will save the CAN
configuration parameter into SRAM. When the module
is rebooted, the CAN configuration will recover the
previous setting.
 Syntax: P3SBCCCCCCCCMMMMMMMM[CHK]<CR>
P3
S
B
CCCCCCCC
MMMMMMM
B
0
1
2
3
4
5
6
7
8
9
Command character
CAN Specification 2.0A/2.0B
CAN Baud rate
CAN filter acceptance code
CAN filter acceptance mask
Table: CAN baud rate list
Description
10K baud rate of CAN
20K baud rate of CAN
50K baud rate of CAN
100K baud rate of CAN
125K baud rate of CAN
250K baud rate of CAN, I-7530-FT does not support
500K baud rate of CAN, I-7530-FT does not support
800K baud rate of CAN, I-7530-FT does not support
1000K baud rate of CAN, I-7530-FT does not support
83.3K baud rate of CAN, I-7530-FT does not support
 Response: A valid command will let the module to apply the CAN
configuration parameters.
Invalid command: ?<Error Code><CR>
 Note:
It is necessary to enable the “Error Response” function in the CAN
Converter Utility, in order to receive Syntax and/or communication
error information at the host PC. This command does not support
user-defined CAN baud rate function. About CAN filter setting, please
refer to section 3.2.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 46
This function just supports above firmware version 3.00.
 Example:
Command: P3040000000000000000<CR>
Change the CAN baud rate=125K and acceptance code
0x00000000, acceptance mask 0x00000000 into the CAN
Converter module. When CAN Converter module was rebooted,
the CAN parameter will be recovered to the previous setting.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 47
4.11 RA[CHK]<CR>
 Description: Reboot the CAN Converter module. If the module is
displaying on but the CAN bus is off, users can use
this command to reboot the module in order to allow it
to work in order again.
 Syntax: RA[CHK]<CR>
RA
Command character
 Response: Valid command will reboot the CAN Converter module.
Invalid command: ?<Error Code><CR>
 Note:
It is necessary to enable the “Error Response” function in the CAN
Converter Utility, in order to receive Syntax and/or communication
error information at the host PC.
 Example:
Command: RA<CR>
The CAN Converter module will reboot after it had received this
command.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 48
4.12
General Error code for all command
AsciiToHex
(Error code)
1
2
3
4
5
Table: Error code table
Description
The head character of the command string is invalid.
The length of the command string is invalid.
The checksum of the command string is invalid.
Reserved
The RS-232/RS-485/RS-422/USB receiver is timeout.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 49
5. Troubleshooting
If the Error response function on the CAN Converter module is set to
“Yes” (that means enable) via the CAN Converter Utility during the
configuration period, the CAN Converter will send the error code to the
RS-232/RS-485/RS-422/USB device of the host PC through the RS232/RS-485/RS-422/USB media when the CAN Converter produces an
error message automatically during the operation mode. The meanings of
these error codes are given below:
Table: Error code table
Error
Description
Possible causes & solutions
code
The RS-232/RS-485/RS-422/USB command string
1 Invalid header header is not “t”,”T”,”e”,”E”,”S”,”C”,”P0”, ”P1”, ”P2”, ”P3”
nor “RA”.
The data byte of the CAN Message does not match the
data length of the CAN Message. For example:
2 Invalid length
Error: t001512345<CR>
Right: t00150102030405<CR>
The checksum from the RS-232/RS-485/RS-422/USB
command string does not matched with the checksum
Invalid
3
calculated by the CAN Converter module. For example:
checksum
Error: t0012112209<CR>
Right: t00121122FD<CR>
The ASCII command strings are sent incomplete.
For example:
5 Timeout
Error: T0018
Right: T0018<CR>
If the CAN Converter module’s CAN baud rate is not the same as the
CAN baud rate on the CAN network, the ON LED on the CAN Converter
module will be flash with a constant frequency because the CAN
Converter module cannot send any CAN messages to the CAN network.
Therefore, users will need to read the CAN Converter module status by
using the command “S[CHK]<CR>”(in the section 4.5) to help users
understand what is going in the module. In general, the following errors
could occur: CAN media connection problem, terminal resistor problem,
different baud rate configuration with CAN network and the like.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 50
Appendix A: Cable selection
The CAN bus is a Balanced (differential) 2-wire interface running over
either a Shielded Twisted Pair (STP), Un-shielded Twisted Pair (UTP), or
Ribbon cable. The CAN-L and CAN-H Wire start on one end of the total
CAN network that a terminator of 120 Ohm is connected between CAN-L
and CAN-H. The cable is connected from CAN node to CAN node,
normally without or with short T connections. On the other end of the
cable again a 120Ω(Ohm) terminator resistor is connected between the
CAN lines. How to decide a cable type, cable length, and terminator
depends on the baud rate in the CAN BUS network, please refer to the
following table.
Figure: Un-shielded Twisted Pair (UTP)
Bus speed
50k bit/s at 1000m
100k bit/s at 500m
500k bit/s at 100m
1000k bit/s at 40m
Table: Cable selection
Cable
Cable type
resistance/m
0.75~0.8mm2
70 mOhm
18AWG
0.5~0.6 mm2
< 60 mOhm
20AWG
0.34~0.6mm2
22AWG,
< 40 mOhm
20AWG
0.25~0.34mm2
23AWG,
< 40 mOhm
22AWG
Terminator Bus Length
150~300
600~1000m
Ohm
150~300
300~600m
Ohm
127 Ohm
40~300m
124 Ohm
0~40m
Note: The AWG means a standard method used to measure wire. The
numbering system works backwards from what people would think,
the thicker (heavier) the wire, the lower the number. For example: a
24AWG wire is thicker/heavier than a 26AWG wire.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 51
Appendix B: Install I-7565 driver
This section will guide you on how to install the I-7565 converter under
Windows XP, Windows 2000, Windows ME, and Windows 98 operating
systems. (No support for WinNT). Download driver files from
1. Package CD:\CAN\Converter\i-7565\driver
2. http://ftp.icpdas.com/pub/cd/fieldbus_cd/can/converter/i-7565/driver/
The following steps will show how to install the device under Windows
2000. Basically, the procedures are also somewhat the same for other
Windows operating systems.
1. Power on your computer and boot to Windows.
2. Locate the USB port of your computer and plug in the I-7565.
3. Windows will detect the new device and will initiate the Found New
Hardware Wizard prompting you to install the software for the detected
USB Device. Select to install from a list or specific location. Click Next
to continue.
4. An “Install Hardware Device Drivers” window is shown. Click “Next” to
initiate a search for a suitable driver for your device.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 52
5. Select the “Specify a location” optional search locations. If the
“CD-ROM drives” checkbox is selected, please insert the driver CD.
Click “Next” to start the search.
6. If the “Specify a location” is selected, you much choose the correct path.
Enter E:\CAN\Converter\I-7565\driver\win2k_xp(The ‘E’ is the Disk that
Package CD put in). Click “OK” to start the search.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 53
7. Once Windows finds the correct driver, click “Next” to install the driver.
8. Windows will then install the driver for the USB-to-Serial COM Port.
Once installation is complete, Windows will notify you that it has
finished installing the software. Click “Finish” to continue.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 54
Note: When you finish the driver installation, please unplug the USB
cable, and then plug the USB cable again.
Verifying the Installation
This section will show you on how to verify whether the I-7565 was
properly installed. You will also need to determine the virtual COM port
assignment made by Windows for the USB to CAN converter.
Note: Before you connect the I-7565 for the first time, ensure that you do
not attach any serial devices to the converter. You must only connect the
I-7565 by itself.
To verify whether the device is properly installed and determine the COM
port assignment for the device:
1. Click “Start”  “Settings”  “Control Panel”, then double click on the
“System” icon. Once the System Properties window is display, click on
” Hardware” tab and then click on the “Device Manager” button. Doubleclick on Ports (COM & LPT). If the device was correctly installed, you
should now see the I-756X Converter device listing. This also means
that Windows has assigned the device to the COM3 port.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 55
2. If you need to reassign the virtual COM Port name to another Port
number, you can double-click on the device (I-756X Converter) to view
the properties.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 56
3. Once you have verified that the device has been properly installed, you
may now proceed to use the USB-to-CAN Converter to connect to CAN
devices. Attach the CAN device to the CAN port of the adapter and then
connect the USB connector to the USB port of your computer. Use the
supplied driver for the serial device if needed.
Uninstalling the Device Driver
It is easy to uninstall the USB to Serial device driver:
1. Run the DRemover98_2K.exe Uninstall program which can be found on
the Package CD, \CAN\Converter\I-7565\driver or at
ftp://ftp.icpdas.com/pub/cd/can_cd/can/converter/i-7565/driver
2. The uninstall program will then prompt you whether you want to remove
the utility program. Click “ OK “ to continue.
3. After the uninstall is complete, the program will prompt you to restart
Windows. Click “Yes” to continue.
4. Windows will show a dialog box to notify you that the driver was
removed successfully. Wait for Windows to restart your computer.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 57
Appendix C: CAN Baud Rate Calculating
This section will describe how to calculation CAN baud rate for I7530 series module, not including tM-7530, and using old version
utility, CAN converter utility, to fill these parameters.
The users can use user-defined CAN Baud rate by setting CAN
Converter utility. There are four parameters for this function, please
refer the below setting window.
1. Clock Mode:
This parameter is means MCU clock. If the CAN Baud rate is
less then 12k, this parameter value is “0”, others are “1”.
2. Bit Timing 1:
This parameter is MCU’s bit timing register 1, please refer to
the next page “Table: Bit Timing Register”.
3. Bit Timing 2:
This parameter is MCU’s bit timing register 2, please refer to
the next page “Table: Bit Timing Register”.
4. Bit Timing 3:
This parameter is MCU’s bit timing register 3, please refer to
the next page “Table: Bit Timing Register”.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 58
How to fill those parameter:
The Bit Timing register includes six kinds of parameter, BRP, SJW,
PRS, PHS2, PHS1, and SMP. Please refer to the following table.
Bit
Bit 7
register
Bit Timing 1 Bit Timing 2 Bit Timing 3 -
Table: Bit Timing Register
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
BRP5 BRP4 BRP3 BRP2 BRP1 BRP0 SJW1 SJW0 PRS2 PRS1 PRS0 PHS22 PHS21 PHS20 PHS12 PHS11 PHS10 SMP
Figure: General structure of a bit period
Generally, the register of SJW0, SWJ1 and SMP are always 0. One bit
time consists of the time Tsyns, Tprs, Tphs1, and Tphs2, and can be divided
into numbers of time slice (TQ) according to the system clock. The
formula is shown below:
Numbers of TQ = (System Clock) / (CAN Baud Rate)
For example, when the CAN baud rate is 40 kbps, the numbers of TQ
would be (20 MHz) / (40 Kbps) = 500. It means that the CAN converter
can divided one bit time into 500 parts. The register PRS, PHS1, and
PHS2 indicates the numbers of the time slice for Tprs, Tphs1, and Tphs2.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 59
The formulas are shown below.
Tprs = (PRS+1) * TQ
Tphs1 = (PHS1+1)* TQ
Tphs2 = (PHS2 +1)* TQ
Because the Tsyns is defined to 1 TQ, therefore one bit time can be
presented as below.
Tbit = 1 TQ + (PRS+1) * TQ + (PHS1+1)* TQ +(PHS2 +1)* TQ
And the sample point is defined below:
Sample point = (Tsyns + Tprs + Tphs1) / (Tsyns + Tprs + Tphs1 + Tphs2)
= (3 + PRS + PHS) / (4+PRS+PHS1+PHS2)
Because the maximum value limitation of the register PRS, PHS1, and
PHS2, the numbers of the Time Quantum always keeps in the range of 8
~ 25. Therefore, users can use register BRP to scale it. For example, if set
the BRP to 25 (the register value of the BRP is 24), the numbers of the
Time Quantum is 500 / 25 = 20. Users can change the value of the PRS,
PHS1, and PHS2 to adjust the required sample point.
For example:
If users want to set the CAN baud rate to “40K” by user-defined
method and use the sample point 60%, set the clock mode to be 1
because the CAN Baud rate is more than 12K bps. When the Clock mode
is 1, the MCU uses X2 mode and the system clock is 20MHz. Otherwise,
the MCU uses X1 mode, and the system clock is 10MHz. The following
steps will guide users to calculate the Bit Timing register step by step.
1. Calculate the numbers of the TQ:
Numbers of the TQ = (System clock) / (CAN Baud Rate)
= 20 M /40 k
=500
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 60
2. Adjust the numbers of the TQ by using the scale register, BRP. The
TQ numbers always be in the range of 8 ~ 25. Here, numbers of
the TQ of one bit time is scaled to 20, and the BRP would be as
follows.
500 / 20 = 25 = (1+BRP)
BRP = 24
3. Use sample point to decide the PRS, PHS1, and PHS2.
Sample point = 60% = (3 + PRS + PHS1) / (4+PRS+PHS1+PHS2)
Numbers of the TQ of one bit time = 20 = (4+PRS+PHS1+PHS2)
“(3 + PRS + PHS1) = 12” can satisfy the sample point 60%.
The PHS2 would be 7. If choose PRS = 2, then PHS1 =7.
4. Generally, the SJW and SMP are set to 0. The SMP is defined as
below:
=> SMP = 0: once, at the sample point.
=> SMP = 1: three times, the threefold sampling of the bus is the
sample point and twice over a distance of a 1/2
period of the Tscl. The result corresponds to the
majority decision of the three values.
According to the above calculation, the three Bit Time registers are as
following:
Bit Timing 1 register value is 0x30.
Bit Timing 2 register value is 0x04.
Bit Timing 3 register value is 0x7E.
Then, the users can fill those parameter values as below:
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 61
Note:
1. After setting down, users must click “Calculate” button and calculate
CAN Baud rate, otherwise CAN Converter utility could not save the
parameter.
2. The function only supports on firmware version 3.00 or more,
If the users do not know how to fill those parameter values, please
feel free to contact us.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 62
Appendix D: Filter setting
The I-7530 series modules use acceptance code and acceptance mask
for filter setting. The acceptance code and acceptance mask are used
for filtering unnecessary CAN messages through RS-232/RS485/RS422/USB port. If users want to prevent the unnecessary CAN
message through Re-conversions, they need to set the parameters of
acceptance code and mask.
Acceptance Code: The CAN ID bits that you want to get.
Acceptance Mask: The CAN ID bits that you want to filter.
In the acceptance code, the bit value ‘1’ means that you want to get this
CAN ID bit. And in the acceptance mask, the bit value ‘1‘ means that
you want to filter this CAN ID bit. For Examples:
(1)
If users want to get all the messages on the CAN bus, the setting
must be as follow:
In CAN 2.0A: Acceptance Code: Don’t care
Acceptance Mask: 000
(2)
If users want to get the message of CAN ID “123” (Hex) and filter
all the other CAN message, the setting must be as follow:
In CAN 2.0A: Acceptance Code: 123 (001 0010 0011 bit)
Acceptance Mask: 7FF (111 1111 1111 bit)
(3)
If users want to get the message of CAN ID from “100” to “12F”
(Hex) and filter all the other CAN message, the setting must be as
follow:
In CAN 2.0A: Acceptance Code: 10X (001 00XX XXXX bit)
(X: don’t care)
Acceptance Mask: 7C0 (111 1100 0000 bit)
(4)
The settings of CAN 2.0A and CAN 2.0B are the same. The
different between CAN 2.0A and CAN 2.0B is the CAN ID bits.
In CAN 2.0A: number of CAN ID bits is 11.
In CAN 2.0B: number of CAN ID bits is 29.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 63
Appendix E: Pair Connection
The pair connection function usually needs two the same CAN
Converter modules. For example, when these two I-7530s are in pair
connection mode, all RS-232 commands transmitted from one of these
two I-7530s will be put in the data field of CAN message. This CAN
message will be transferred to RS-232 commands by another I-7530. The
following section will show each condition for different pair connection
configuration.
Application 1:
This application may be used in two general RS-232 devices which
need to connect with each other, but the distance between is too large to
communicate by using RS-232.
Note: All of CAN Converter modules, like I-7530, I-7530-FT, I-7530A, I7565 have pair connection function.
Using I-7565 with pair connection mode, it just supports RS-232 baud rate
115200 bps or less.
Configurations:
To apply this application, user need to configure the CAN Converter
modules #1 and #2 as follows. The RS-232 configurations of CAN
Converter modules #1 and #2 are decided by the Device1 and Device2
RS-232 parameters.
module #1 Configuration
module #2 Configuration
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 64
Communication Descriptions:
For example, if there are 7 bytes data, “1234567”, transmitted from
Device1 which is sent CAN messages by I-7530#1’s COM port, the
Device2 will also receive “1234567” from the COM port of I-7530#2.
The CAN ID in above figure is determined by the CAN specification
selected by users. If users select CAN 2.0A, the CAN ID is 11-bit ID. If
CAN 2.0B is used, the CAN ID is 29-bit ID. Here, assume users set the
Fixed Tx CAN ID field of CAN Converter Device#1 to be 0x001 ( “0x” is for
hexadecimal format) and CAN 2.0A is used, the CAN ID displayed in
above figure is 0x001.
For example, if there are 9 bytes data, “123456789”, transmitted from
Device1 which is sent CAN messages by I-7530#1’s COM port, the
Device2 will also receive “123456789” from the COM port of I-7530#2.
Note: If users use 115200bps for RS-232 port of CAN Converter module,
it is recommended that the configuration of CAN Converter module CAN
baud is closed to the configuration of RS-232 baud, such as 125K bps.
When you use pair connection function of CAN Converter module, the
baud under 125K bps is proper.
Application 2:
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 65
This application architecture is the same as the one of application1.
The application architecture is show below. The difference will be
discussed in the following paragraph.
For example, there are two RS-232 devices which communicate each
other by using I-7530’s pair connection function.
Configurations:
To apply this application, user need to configure the CAN Converter
module #1 and #2, like I-7530 as above figure. The RS-232 configurations
of module #1 and module #2 are decided by the Device1 and Device2
RS-232 parameters.
module #1 Configuration
module #2 Configuration
Communication Descriptions:
The communication of this condition is similar with the communication
of condition 1. The difference is that the module #2 of the application 1 will
transfer the RS-232 commands to Device2 immediately if it receives any
CAN message from the module #1. The module #2 of application 2 will
not transfer the RS-232 commands to Device2 until it has checked the
end character of RS-232 command (The end of RS-232 command is ‘CR’).
For example, if Device1 send RS-232 commands “123456789”, the
Device2 in application 1 will receive the data “12345678” immediately, and
receive the data “9” with a little delay. But, Device2 in application 2 will
receive the data “123456789” at the same time (Max. 72 bytes data at the
same time for I-7530 series, not tM-7530 included. tM-7530 used 256
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 66
bytes data.).
Application 3:
This application may be used to construct a RS-232 device network
via CAN bus. The architecture is shown below.
Configurations:
In order to apply this application, user need to configure the three
CAN Converter modules #1, #2 and #3, like I-7530 as above figure. The
RS-232 configurations of these three CAN Converter modules are
decided by the RS-232 device they connect with.
module #1 Configuration
module #2 Configuration
module #3 Configuration
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 67
Communication Descriptions:
When Device1 want to transmit RS-232 commands “1234567” to
Device2, the commands written to I-7530#1 by Device1 need to be
“0021234567” because the Device1 is set to dynamic Tx CAN ID (Fixed
Tx CAN ID is not checked). The first three bytes of “0021234567” is “002”,
it means that the CAN ID is 0x002 when the I-7530#1 receives the RS232 commands from Device1 and transfers it to CAN message.
Afterwards, this CAN message is only accepted by Device2 because the
configurations of acceptance code and acceptance mask of Device2.
Similarly, if Device1 wants to send RS-232 commands “1234567” to
Device3, it needs to send “0031234567” RS-232 commands to I-7530#1.
When the Device2 or Device3 respond the RS-232 commands “456789”,
the CAN message will have CAN ID “0x002” and “0x003” because of the
configurations of Fixed Tx CAN ID of I-7530#2 and I-7530#3. Because
the I-7530#1 is set to Response with CAN ID, the Device1 will receive the
RS-232 commands “002456789” or “003456789”. Therefore, Device1 can
decide the target device which RS-232 commands will be sent to. Also,
Device1 knows where the RS-232 commands come from. The general
concept of transmitting data from Device1 to Device2 is shown below.
Note: In pair connection mode, all RS-232/RS-485/RS-422/USB
commands listed in section 4 are useless. When the RS-232/RS485/RS-422/USB or CAN buffer of CAN Converter is overflow. The
ERR Led will be turned on for 300ms, and then CAN Converter will
be reset by watchdog automatically.
I-7530, I-7530-FT, I-7530A, I-7565 User’s Manual (Version 1.2, Jun/2014) -------- 68
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement