The i-7531 CAN Repeater
Contents
1. Note Twinkling rate correlates with baud rate of CAN bus Users may see no twinkling when the twinkling period is too short because of the higher baud rate of CAN bus Besides the yellow LED could look like always on when bus loading is heavy i 7531 CAN Repeater Quick Start User Guide ver 1 1 2008 01 10 2 3 Terminator Resistor Setting According to the ISO 11898 specifications the CAN bus network must be terminated by one terminal resistor 120Q on each end of CAN bus for proper operation The JP2 of i 7531 is used for adjusting terminal resistor on CAN Port 1 and the JP3 of I 7531 is used for adjusting terminal resistor on CAN Port 2 Before setting terminal resistor of i 7531 user needs to open the cover of I 7531 first Those locations of JP2 and JP3 are shown as following figure The following connection statuses present the condition if the terminal resistor is enabled default or disabled Disable Enable Deactivate Activate 4 Configuration Installation step1 Modify JP2 and JP3 of i 7531 according to user s application Step2 Connect two different CAN buses using i 7531 as follow figure i 7531 CAN Repeater Quick Start User Guide ver 1 1 2008 01 10 3 a Te FG CAN Shield CAN Bus1 eee l CAN_GND l a a 7 S CAN H o CAN DEVICE l l 4 l i l l GQO9QQQdgedvWsdssdsds CAN_H ND FG i 7531 CAN bus Repeater Support CAN 2 02. 4 2 0B Photo isolation 2500 Vrms Expand the number of CAN buses Mountable on DIN Rail 3000V Isolation S S A S lt a S CAN Bus 2 Pa CAN L TE Ground yj CANH I ot 10V 30V CAN _GND oOo AU O O r o FG CAN_Shield gt Z __ 2 i PERENE NL P 4 Note Roughly speaking wiring of CAN_GND and FG between CAN devices can improve the capability of anti interference of CAN bus system in harsh environment but this is not necessary For more Information about CAL L CAN H CAN GND and FG CAN_ Shield please refer to user manual of i 7531 i 7531 CAN Repeater Quick Start User Guide ver 1 1 2008 01 10 4
3. The i 7531 CAN Repeater Quick Start User Guide 1 Introduction This user guide describes how to implement the i 7531 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 7531 please refer to the user manual of i 7531 in the product CD or visit our website as follow http www icpdas com products Remote_ O can_bus i 7531 htm The purpose of this document is focused on helping users to quickly familiarize themselves with the i 7531 module For example users can apply the i 7531 module as follow figure Backbone use Backbone of CAN bus r I 531 a i 7531 p I 531 Electronic isolation Extended use I 7531 I 7531 Original Extended Ps Extended CAN bus a CAN bus o TC m Y CAN bus TETA Electronic isolation i 7531 CAN Repeater Quick Start User Guide ver 1 1 2008 01 10 l 2 Hardware Structure CAN Port 2 CPron i 753 CAN bus Repeaber i Support CAN 2 04 2 08 Status LED of Power amp Communication Photo isolation 2500 WYrrms Expand the number of CAN Wises Mountable on DIN Rail S000 Tsolation KH N CAN Port 1 Power Input When the i 7531 is turned on the status LED will be display with red light Moreover when a message passes through i 531 the status LED will be twinkle once with yellow light while the red light is still on
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