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--- en-us_products:mpino_8a4r_su [2026/09/15 10:37] – external edit 127.0.0.1
+++ en-us_products:mpino_8a4r_su [2026/10/25 08:42] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== MPINO-8A4R-SU ======
-MPINO-8A4R-SU is a all-in-one industrial Arduino with 8 digital inputs and 4 relay with independent COM terminals outputs. A single PCB integrates selectable analog inputs, NTC temperature sensor inputs, 6 PWM outputs, and RS-485·I²C·SPI communication.
+MPINO-8A4R-SU is an all-in-one industrial Arduino with 8 digital inputs and 4 relay outputs with independent COM terminals. A single PCB integrates selectable analog inputs, NTC temperature sensor inputs, 6 PWM outputs, and RS-485·I²C·SPI communication.
 Program the controller with Arduino IDE (Arduino C/C++) or MPINO STUDIO 2 (Arduino C/C++ & ladder logic).
-Use the [[:en-us_guide:getting_started#mpino-8a4r-su|MPINO-8A4R-SU Arduino IDE getting-started guide]] to select the board and port and check the first input and output.
+See the [[:en-us_products:mpino_series#mpino_series_specifications|MPINO Series specifications]] for the board name, connection method, and first I/O numbers for MPINO-8A4R-SU.
@@ Line 17: / Line 17: @@
 |  Power  |  -  |  Supply voltage  | DC 24V only (0.5A or more)  |
 |  Digital inputs  |  8 points \\ (Solid-state, isolated)  |  P0~P7  | operating input voltage: DC 0~40V \\ HIGH detection voltage: DC 5V or higher \\ 4 points/1COM \\ NPN/PNP input support  |
-|  Relay outputs  |  4 points \\ (Mechanical contacts, isolated)  |  P32~P35  | operating connection voltage: DC 0~30V or AC 0~250V \\ maximum allowable output current: 16A/1 points, 16A/1COM \\ 1 points/1COM  |
+|  Relay outputs  |  4 points \\ (Mechanical contacts, isolated)  |  P32~P35  | operating connection voltage: DC 0~30V or AC 0~250V \\ maximum allowable output current: 16A/1 point, 16A/1COM \\ 1 point/1COM  |
-|  Analog inputs  |  4 points \\ (Non-isolated)  |  A0~A3  | DC 0~5V: 10bit (0~1023), input resistance 100MΩ (±1%) \\ 0~20mA or 4~20mA: 10bit (0~1023 or 0~818), input resistance 250Ω (±1%) \\ DC 0~10V: 10bit (0~1023), input resistance 200kΩ (±1%), optional  |
+|  Analog inputs  |  4 points \\ (Non-isolated)  |  A0~A3  | DC 0~5V: 10-bit (0~1023), input resistance 100MΩ (±1%) \\ 0~20mA or 4~20mA: 10-bit (0~1023 or 0~818), input resistance 250Ω (±1%) \\ DC 0~10V: 10-bit (0~1023), input resistance 200kΩ (±1%), optional  |
 |  Temperature sensor inputs  |  2 points \\ (Non-isolated)  |  NTEMP \\ A4, A5  | input temperature: -40~120℃ \\ Sensor: NTC 3950K, 10kΩ(25℃) \\ Resolution: 0.1℃ (at 0~40℃)  |
 |  Interrupts \\ High-Speed Counter / Encoder  |  4 points \\ (Non-isolated)  |  D24(CLK), D25(DIO) \\ D18(SCL), D19(SDA)  | input voltage: DC 0~5V \\ HIGH detection voltage: DC 3V or higher \\ input frequency: Max. 50kHz \\ Built-in 10kΩ pull-up \\ FND unavailable when D24/D25 are in use \\ I²C unavailable when D18/D19 are in use  |
@@ Line 28: / Line 28: @@
 | ::: | ::: |  SRAM  | 4KB  |
 | ::: | ::: |  EEPROM  | 4KB  |
+**Markdown file:** [[https://www.ilogics.net/docs/downloads:mpino:en:mpino_8a4r_su?do=export_raw|Download MPINO-8A4R-SU.md]]
 ===== Digital inputs =====
+[[:en-us_guide:wiring#digital_input_one_channel_check|See the one-channel digital-input check before wiring for the first time. →]]
 ^ Terminal ^ Arduino Pin ^ Input Configuration ^ Terminals and Wiring Example ^
 | P0~P3 | D0~D3 | 4 digital inputs, sharing COM0 |  {{:en-us_products:mpino-8a4r-su-digital-input.svg?740|MPINO-8A4R-SU digital input terminals and NPN/PNP wiring}}  |
@@ Line 154: / Line 157: @@
 </code>
+===== STATUS LED =====
+The MPINO-8A4R-SU STATUS LED is an indicator mounted on the board. You can use it to show the operating state of your program.
+The STATUS LED is connected to digital pin D20. In a sketch, use ''LED_BUILTIN'' in place of D20. Set ''pinMode(LED_BUILTIN, OUTPUT)'' before controlling it. ''digitalWrite(LED_BUILTIN, HIGH)'' turns the LED on; ''digitalWrite(LED_BUILTIN, LOW)'' turns it off.
+**Note:** The STATUS LED is on the board and is separate from the external output terminals.
+==== Example · Blink the STATUS LED ====
+This example turns the STATUS LED on and off at 0.5-second intervals.
+<code cpp>
+void setup() {
+  pinMode(LED_BUILTIN, OUTPUT);
+}
+void loop() {
+  digitalWrite(LED_BUILTIN, HIGH);  // LED on
+  delay(500);
+  digitalWrite(LED_BUILTIN, LOW);   // LED off
+  delay(500);
+}
+</code>
 ===== Relay outputs =====
+[[:en-us_guide:wiring#relay_output_one_channel_check|See the one-channel relay-output check before wiring for the first time. →]]
 ^ Terminal ^ Arduino Pin ^ Contact ratings ^ COM configuration ^ Terminals and Wiring Example ^
 | P32 | D32 | AC 250V or DC 30V, Max. 16A | Separate COM2 |  {{:en-us_products:mpino-8a4r-su-relay-output.svg?488|MPINO-8A4R-SU relay output terminals and load wiring}}  |
@@ Line 588: / Line 617: @@
 <code cpp>
-// Serial Monitor via MP download cable ↔ RS-232 Serial1
+// Serial Monitor via MP download cable ↔ RS-485 Serial1
 void setup() {
   Serial.begin(115200);
@@ Line 725: / Line 754: @@
 **Related built-in functions**
-=== Function example · LS Industrial Systems Cnet SLave: ICnetMem(), ICnetAdr(), ICnetInit(), ICnet() ===
+=== Function example · LS Industrial Systems Cnet Slave: ICnetMem(), ICnetAdr(), ICnetInit(), ICnet() ===
 **Function prototype**
@@ Line 768: / Line 797: @@
 }
 </code>
+[[https://www.ilogics.net/en-us/products/mpino-8a4r-su|View MPINO-8A4R-SU price and purchase options]]
 [[:en-us_products:mpino_series|← MPINO Series comparison (Korean)]]