ICP DAS USA I-7531-FD User manual

P1
I-7531-FD Quick Start
v1.0, Oct 2021
Packing List
In addition to this guide, the package includes the following items:
I-7531-FD
Plastic rail
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Model Name
Model Name

P2
1. Appearance
Number
Description
1
CAN port 1
2
CAN port 2
3
LED indicators
2. LED indicators
LED
Color
Status
Description
1
(PWR)
Red
ON
Power on
OFF
Power off
2
(RUN)
Green
Blink
In communication
OFF
No data in
communication
Note 1: Twinkling rate correlates of RUN LED 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 LED could look like always
on when bus loading is heavy.
1
2
1
2
3

P3
3. Pin assignments
Pin
Name
Description
1
CAN_L
CAN_Low. Signal Line of CAN port 1.
3
CAN_H
CAN_High. Signal Line of CAN port 1.
5
GND
CAN_Ground (or CAN_GND), voltage level of
ground of CAN_L and CAN_H in CAN port 1.
7
FG
Frame Groud.
9
(R)VS+
Power input +10VDC ~ +30VDC.
10
(B)GND
14
FG
Frame Groud.
16
GND
CAN_Ground (or CAN_GND), Voltage level of
ground of CAN_L and CAN_H in CAN port 2.
18
CAN_H
CAN_High. Signal Line of CAN port 2.
20
CAN_L
CAN_Low. Signal Line of CAN port 2.

P4
4. Terminator Resistor Setting
The JP1 of I-7531-FD is used for adjusting terminal resistor (120Ω) on
CAN Port 1, and the JP2 for CAN Port 2. If the user want to adjust the
terminal resistor that need to open the cover of I-7531-FD, and will see the
locations of JP1 and JP2 are shown as following figure:
5. Wire Connections
Disable
(Deactivate)
Enable
(Activate)
JP1 JP2
CAN1 CAN2
CAN DEVICE CAN_H
CAN_L
Power GND
+10VDC ~ +30VDC
CAN_H
CAN_L
CAN_GND
CAN_GND
1
5
6
9
Frame Ground
9-Pin D-sub
Male connector
Frame Ground