I-7532 CAN Bridge QuickStart(ver. 1.0, 2008/08/25) ------1
Quick Start User Guide
This user guide describes how to implement the I-7532 module
into users’ applications in a quick and easy way. Therefore, it only
provides the basic concepts. If users want to know more detail
information about the I-7532, please refer to the user manual in the
product CD or visit our website as follow:
http://www.icpdas.com/products/Remote_IO/can_bus/i-7532.htm
1. Introduction................................................................................................2
2. LED Status..................................................................................................3
3. Wire Connection ........................................................................................4
4. Terminator Resistor Setting......................................................................5
The
I
-
753
2
CAN
Bridge
I-7532 CAN Bridge QuickStart(ver. 1.0, 2008/08/25) ------2
1. Introduction
I-7532 is a local CAN bridge used to establish a connection
between two CAN bus system in a CAN network. The I-7532
stands by itself connecting adjacent wiring segments together as in
the case of a CAN repeater (I-7531). Not just like a CAN repeater,
I-7532 has more powerful features (Extend Network Distance and
Connect two networks with different baud rate).
I-7532 CAN Bridge QuickStart(ver. 1.0, 2008/08/25) ------3
2. LED Status
1.PWR
PWR LED (Red Light)
ON
Power On
OFF
Power off
When the I-7532 is active, the PWR
LED will turn on with red light.
3.CH1 RX, CH2 RX
Rx LED(Green Light)
Flashing
Transmission
OFF
Bus Idle
If there are messages passed
through I-7532 from channel 1 to
channel 2, the CH1 Rx LED will
flash once with green light, and
vice versa.
2.CH1 ERR , CH2 ERR
ERR LED(Red Light)
Flashing
(100ms)
Transmission Fail
Flashing (1sec)
Buffer overflow
ON
Bus Off
OFF
No Error
(1).Transmission Fail： If the message
transmission fails on channel(X), the
CH(X) ERR LED will flash continuously,
and the flashing interval is about 100
millisecond.
(2).Buffer overflow ： If Tx buffer on
channel (X) had been overflow, the CH(X)
ERR LED would flash continuously, and
the flashing interval is about 1 second. No
matter the status is already fixed or not,
after users click the RST button, the LED
will be off.
(3).Bus Off：If the CAN bus connected to
channel (X) of I-7532 is bus off, the CH(X)
ERR LED will be ON until corrected.
5.RST & Err Clear
Reset & Error Clear Button
Click Clear Error LED
Press 3 sec Module Reset
(1).Error Clear：Users can click this button to
clear the ERR LED status.
(2).Module Reset：If users want to restart the
I-7532, press this button until 3 sec and all of
LED on I-7532 will flash once about 0.8 sec.
4.CH1 Baud, CH2 Baud
Baud Switch
switch 0 1 2 3 4 5 6 7
Baud[bps]
N/A 5k 10k 20k 40k 50k 80k 100k
switch 8 9 A B C D E F
Baud[bps]
125k
200k
250k
400k
500k
600k
800k
1M
Users can use the “Baud Switch” to change the CAN1 and CAN2 baud.
There are 15 kinds of baud can be chosen. After changing the switch
value, users must reset Module to take the setting effect (press RST
button until 3 sec).
i-7532
11
20
10
1
FG3
(R)VS+
(B)GND
CAN_GND
CAN_L
FG2
CAN_H
CAN_GND
CAN_L
FG1
CAN_H
CAN CH 2CAN CH 1
CH1 Baud
CH2 Baud
RST &
Err Clear
CAN Bus Bridge
‧Support CAN 2.0A/2.0B
‧Selectable 120O terminator resistor
‧Rotary switch value & Baud :
CH1 Rx
CH1 ERR
CH2 ERR
PWR
CH2 Rx
3KV VDC Isolation on each CAN side
5K 10K 20K 40K 50K 80K 100K 125K
1 2 3 4 5 6 7 8
9 A B C D E F
200K 250K 400K 500K 600K 800K 1M
RSW
Baud
RSW
Baud
I-7532 CAN Bridge QuickStart(ver. 1.0, 2008/08/25) ------4
3. Wire Connection
Earth Ground
CAN_L
CAN_GND
CAN_H
CAN_L
CAN_GND
Earth Ground
Power Ground
+10V
DC
~ +30V
DC
Earth Ground
11
20
CAN_GND
CAN_L
FG2
CAN_H
CAN_GND
CAN_L
FG1
CAN_H
CAN CH 2CAN CH 1
10
1
FG3
(R)VS+
(B)GND
CAN_H
CAN CH 1
CAN CH2
POWER
Part Name Description
CAN_GND CAN_Ground, ground voltage level of CAN channel 1.
CAN_L CAN_Low, signal line of CAN channel 1.
FG1 Frame Ground of CAN channel 1.
CAN CH 1
CAN_H CAN_High, signal line of CAN channel 1.
CAN_GND CAN_Ground, ground voltage level of CAN channel 2.
CAN_L CAN_Low, signal line of CAN channel 2.
FG2 Frame Ground of CAN channel 2.
CAN CH 2
CAN_H CAN_High, signal line of CAN channel 2.
(R)VS+ Voltage Source. It could be +10V
DC
~ +30V
DC
.
(B)GND Power Ground.
Power
FG3 Frame Ground of Power.
I-7532 CAN Bridge QuickStart(ver. 1.0, 2008/08/25) ------5
4. Terminator Resistor Setting
The I-7532 module includes two build-in 120Ω terminal resistors, users
can decide to enable those two terminator resistors or not.
The JP4 of I-7532 is used to adjust terminal resistor on CAN Channel 1,
and the JP3 of I-7532 is used to adjust terminal resistor on CAN Channel 2.
Before adjusting JP3 or JP4 of I-7532, users need to open the cover of
I-7532 first. Those locations of JP3 and JP4 are shown as follows:
The following connection statuses present the condition if the terminal
resistor is enabled (default) or disabled.
Disable
(Deactivate)
Enable
(Activate)
JP4
JP3
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