AFE-R761 DI/DO - Revision history

Xingxing.li at 05:59, 14 January 2026

2026-01-14T05:59:27Z

Xingxing.li at 05:56, 14 January 2026

2026-01-14T05:56:24Z

Xingxing.li: /* Export GPIO */

2026-01-14T05:51:58Z

‎Export GPIO

Xingxing.li at 02:18, 14 January 2026

2026-01-14T02:18:17Z

Xingxing.li at 02:02, 14 January 2026

2026-01-14T02:02:13Z

Xingxing.li at 01:51, 14 January 2026

2026-01-14T01:51:27Z

Xingxing.li at 01:46, 14 January 2026

2026-01-14T01:46:24Z

Xingxing.li at 01:18, 14 January 2026

2026-01-14T01:18:34Z

Xingxing.li: Created page with " === '''Hardware pin definition：''' === There are 4x digital inputs and 4x digital outputs for on/off triggering and status reading. RTENOTITLE..."

2026-01-14T01:17:10Z

Created page with " === '''Hardware pin definition：''' === There are 4x digital inputs and 4x digital outputs for on/off triggering and status reading. RTENOTITLE..."

New page

=== '''Hardware pin definition：''' ===

There are 4x digital inputs and 4x digital outputs for on/off triggering and status reading.

[[File:AFE-R761 DIDO.jpg|RTENOTITLE]]

[[File:AFE-R761 DIDO Pin name.png|RTENOTITLE]]

==== '''Digital Input''' ====

4 x DI w 2500VDC isolation protection (terminal block) - Wet contact: Logic: 0~3VDC(max);Logic 1: 10~30VDC - Dry contact: Logic 0: Shorted to GND; Logic 1: Open (Default) '''Digital Output'''

4 x DO w 2500VDC isolation protection (terminal block) - Output voltage: 5-30VDC - Output capability Sink(NPN): 500mA per channel

=== '''SW Function''' ===

=== '''Show DI/DO ports''' ===
<pre># #---- Show DI ports ----# #
# cd /dev/
# ls DI*
DI1 DI2 DI3 DI4

# #---- Show DO ports ----# #
# cd /dev/
# ls DO*
DO1 DO2 DO3 DO4</pre>

=== '''Get DI Status''' ===

Take DI1 for example
<pre># cat /dev/DI1
1</pre>

Note!

1. DI ports have two types : Dry or Wet. 2. For Dry ports 0 means the external circuit is conductive. 1 means the external circuit is NOT conductive. 3. For Wet ports 0 means the voltage of input is between 10-30V 1 means the voltage of input is between 0-3V 3-10V is unstable status.

=== '''Set and Get DO Status''' ===

Take DO1 for example:（The DO interface of UIO-4033 is of sink type，Default state: No output）
<pre># #---- Set 0 to DO1 ----# #
# echo 0 > /dev/DO1

# #---- Set 1 to DO1 ----# #
# echo 1 > /dev/DO1

# #---- Get DO1 status ----# #
# cat /dev/DO1
1</pre>

Note：

Setting 0 to make the external circuit NOT conductive. Setting 1 to make the external circuit conductive.

@@ Line 50: / Line 50: @@
 Note： The DI GPIO port can only be used for input, and the DO GPIO port can&nbsp;&nbsp;only be used for output. Do not echo "out" on the DI port or echo "out" on&nbsp;&nbsp;the DI port.
 Export GPIO then you can use control GPIO from user space through sysfs.&nbsp;
+==== '''Export GPIO''' ====
 <pre># echo 505 > /sys/class/gpio/export</pre>
@@ Line 87: / Line 87: @@
 x DO w 2500VDC isolation protection (terminal block)<br/> - Output voltage: 5-30VDC<br/> - Output capability Sink(NPN): 500mA per channel
 ==== '''Show DI/DO ports''' ====

@@ Line 52: / Line 52: @@
 Export GPIO then you can use control GPIO from user space through sysfs.&nbsp;
@@ Line 57: / Line 58: @@
 <pre># echo 505 > /sys/class/gpio/export</pre>
-'''Set GPIO direction to in/out'''
+==== '''Set GPIO direction to in/out''' ====
-&nbsp;
+=== '''Export DO0 and DI1''' ===
-'''Set GPIO value 0/1 if GPIO pin define is output'''
+==== '''Set DO1 to output and DI1 to input''' ====
-&nbsp;
+==== '''Change DO0 to 1 and read DI1 value''' ====
 ==== '''Digital Input''' ====

@@ Line 52: / Line 52: @@
 Export GPIO then you can use control GPIO from user space through sysfs.&nbsp;
 === '''Export GPIO''' ===
-<pre># #</pre>
+<pre># echo 505 > /sys/class/gpio/export</pre>
 &nbsp;

@@ Line 49: / Line 49: @@
 |}
-==== Note： The DI GPIO port can only be used for input, and the DO GPIO port can&nbsp;&nbsp;only be used for output. Do not echo "out" on the DI port or echo "out" on&nbsp;&nbsp;the DI port. ====
+Note： The DI GPIO port can only be used for input, and the DO GPIO port can&nbsp;&nbsp;only be used for output. Do not echo "out" on the DI port or echo "out" on&nbsp;&nbsp;the DI port.
 Export GPIO then you can use control GPIO from user space through sysfs.&nbsp;

@@ Line 1: / Line 1: @@
 === '''Hardware pin definition：''' ===
@@ Line 49: / Line 48: @@
 | 508
 |}
 ==== '''Digital Input''' ====
@@ Line 75: / Line 83: @@
 </pre>
-Note!
+'''Set and Get DO Status'''
 Take DO1 for example:（The DO interface of UIO-4033 is of sink type，Default state: No output）
@@ Line 99: / Line 102: @@
 '''The wiring and measurement methods can be referred to as shown in the following diagram.'''
-[[File:AFE-R761 DIDO 1.jpg|800x400px]]
+[[File:AFE-R761 DIDO 1.jpg|800x400px|AFE-R761 DIDO 1.jpg]]
 '''Note：'''
@@ Line 108: / Line 111: @@
 、When echo is "1", the DO on the UIO is closed mode and the level is low.

@@ Line 1: / Line 1: @@
 === '''Hardware pin definition：''' ===
-There are 4x digital inputs and 4x digital outputs for on/off triggering and status reading.
+AFE-R761 supports 4x digital inputs and 4x digital outputs.
 [[File:AFE-R761 DIDO.jpg|RTENOTITLE]]
 [[File:AFE-R761 DIDO Pin name.png|RTENOTITLE]]
 ==== '''Digital Input''' ====

@@ Line 36: / Line 36: @@
 . DI ports have two types&nbsp;: Dry or Wet.<br/> 2. For Dry ports<br/> 0 means the external circuit is conductive.<br/> 1 means the external circuit is NOT conductive.<br/> 3. For Wet ports<br/> 0 means the voltage of input is between 10-30V<br/> 1 means the voltage of input is between 0-3V<br/> 3-10V is unstable status.
 ==== '''Set and Get DO Status''' ====
@@ Line 53: / Line 54: @@
 Setting 0 to make the external circuit NOT conductive.<br/> Setting 1 to make the external circuit conductive.
 &nbsp;

@@ Line 16: / Line 16: @@
 === '''SW Function''' ===
-=== '''Show DI/DO ports''' ===
+==== '''Show DI/DO ports''' ====
 <pre># #---- Show DI ports ----# #
 # cd /dev/
@@ Line 27: / Line 27: @@
 DO1 DO2 DO3 DO4</pre>
-=== '''Get DI Status''' ===
+==== '''Get DI Status''' ====
 Take DI1 for example
@@ Line 37: / Line 37: @@
 . DI ports have two types&nbsp;: Dry or Wet.<br/> 2. For Dry ports<br/> 0 means the external circuit is conductive.<br/> 1 means the external circuit is NOT conductive.<br/> 3. For Wet ports<br/> 0 means the voltage of input is between 10-30V<br/> 1 means the voltage of input is between 0-3V<br/> 3-10V is unstable status.
-=== '''Set and Get DO Status''' ===
+==== '''Set and Get DO Status''' ====
 Take DO1 for example:（The DO interface of UIO-4033 is of sink type，Default state: No output）