OpenPLC Runtime is compatible with several different hardware platforms with different I/O module configurations. Internally, all I/O variables are associated with a PLC Address, as explained on 2.3 Input, Output and Memory Addressing. The hardware layer is the component responsible for translating internal PLC Address variables into physical hardware locations. Each platform OpenPLC supports must have a different hardware layer. Below you can find the pinout description for each platform, extracted from the platform’s hardware layer file:
Microcontroller-based boards
Controllino Maxi
| Digital In | A4, A5, A6, A7, A8, A9, IN0, IN1 | %IX0.0 – %IX0.7 |
| Digital Out | D4, D5, D6, D7, D8, D9, D10, D11 R0, R1, R2, R3, R4, R5, R6, R7 R8, R9 |
%QX0.0 – %QX0.7 %QX1.0 – %QX1.7 %QX2.0 – %QX2.1 |
| Analog In | A0, A1, A2, A3 | %IW0 – %IW3 |
| Analog Out | D0, D1, D2, D3 | %QW0 – %QW3 |
Controllino Maxi Automation
| Digital In | AI2, AI3, AI4, AI5, AI6, AI7, AI8, AI9 AI10, AI11, DI0, DI1, DI2, DI3, IN0, IN1 |
%IX0.0 – %IX0.7 %IX1.0 – %IX1.7 |
| Digital Out | DO0, DO1, DO2, DO3, DO4, DO5, DO6, DO7 R0, R1, R2, R3, R4, R5, R6, R7 R8, R9 |
%QX0.0 – %QX0.7 %QX1.0 – %QX1.7 %QX2.0 – %QX2.1 |
| Analog In | A0, A1, A13, A13 | %IW0 – %IW3 |
| Analog Out | AO0, AO1 | %QW0 – %QW1 |
Controllino Mega
| Digital In | A5, A6, A7, A8, A9, A10, A11, A12 A13, A14, A15, I16, I17, I18, IN0, IN1 |
%IX0.0 – %IX0.7 %IX1.0 – %IX1.7 |
| Digital Out | D12, D13, D14, D15, D16, D17, D18, D19 R0, R1, R2, R3, R4, R5, R6, R7 R8, R9, R10, R11, R12, R13, R14, R15 |
%QX0.0 – %QX0.7 %QX1.0 – %QX1.7 %QX2.0 – %QX2.7 |
| Analog In | A0, A1, A2, A3, A4 | %IW0 – %IW4 |
| Analog Out | D0, D1, D2, D3, D4, D5, D6, D7 D8, D9, D10, D11 |
%QW0 – %QW7 %QW8 – %QW11 |
esp32
| Digital In | 17, 18, 19, 21, 22, 23, 27, 32 33 |
%IX0.0 – %IX0.7 %IX1.0 – %IX1.0 |
| Digital Out | 01, 02, 03, 04, 05, 12, 13, 14 15, 16 |
%QX0.0 – %QX0.7 %QX1.0 – %QX1.1 |
| Analog In | 34, 35, 36, 39 | %IW0 – %IW3 |
| Analog Out | 25, 26 | %QW0 – %QW1 |
esp8266 (node-mcu board)
| Digital In | 4, 5, 6, 7 | %IX0.0 – %IX0.3 |
| Digital Out | 0, 1, 2, 3 | %QX0.0 – %QX0.3 |
| Analog In | A0 | %IW0 – %IW0 |
| Analog Out | 8 | %QW0 – %QW0 |
Machine Control
| Digital In | 0, 1, 2, 3, 4, 5, 6, 7 | %IX0.0 – %IX0.7 |
| Digital Out | 0, 1, 2, 3, 4, 5, 6, 7 | %QX0.0 – %QX0.7 |
| Analog In | 0, 1, 2 | %IW0 – %IW2 |
| Analog Out | 0, 1, 2, 3 | %QW0 – %QW3 |
Mega / Due
| Digital In | 62, 63, 64, 65, 66, 67, 68, 69 22, 24, 26, 28, 30, 32, 34, 36 38, 40, 42, 44, 46, 48, 50, 52 |
%IX0.0 – %IX0.7 %IX1.0 – %IX1.7 %IX2.0 – %IX2.7 |
| Digital Out | 14, 15, 16, 17, 18, 19, 20, 21 23, 25, 27, 29, 31, 33, 35, 37 39, 41, 43, 45, 47, 49, 51, 53 |
%QX0.0 – %QX0.7 %QX1.0 – %QX1.7 %QX2.0 – %QX2.7 |
| Analog In | A0, A1, A2, A3, A4, A5, A6, A7 | %IW0 – %IW7 |
| Analog Out | 2, 3, 4, 5, 6, 7, 8, 9 10, 11, 12, 13 |
%QW0 – %QW7 %QW8 – %QW11 |
MKR Series
| Digital In | 0, 1, 2, 3, 4, 5 | %IX0.0 – %IX0.5 |
| Digital Out | 7, 8, 9, 10, 11, 12 | %QX0.0 – %QX0.5 |
| Analog In | A1, A2, A3, A4, A5, A6 | %IW0 – %IW5 |
| Analog Out | 6, 15 | %QW0 – %QW1 |
Nano Every
| Digital In | 2, 3, 4, 5, 6 | %IX0.0 – %IX0.4 |
| Digital Out | 7, 8, 10, 11, 12, 13 | %QX0.0 – %QX0.5 |
| Analog In | A1, A2, A3, A4, A5, A6, A7 | %IW0 – %IW6 |
| Analog Out | 9, 14 | %QW0 – %QW1 |
Productivity Open P1AM-100
| Digital In | 31, 0, 1, 2, 3, 4 | %IX0.0 – %IX0.5 |
| Digital Out | 32, 6, 7, 11, 12, 13, 14 | %QX0.0 – %QX0.6 |
| Analog In | A1, A2, A5, A6 | %IW0 – %IW3 |
| Analog Out | A0 | %QW0 – %QW0 |
Notes:
– P1AM modules are addressed using specific P1AM blocks on OpenPLC Editor
– P1AM Toggle Switch (digital pin 31) mapped to %IX0.0
– P1AM LED (digital pin 32) mapped to %QX0.0
RP2040
| Digital In | 2, 3, 4, 5, 6, 7 | %IX0.0 – %IX0.5 |
| Digital Out | 8, 9, 10, 11, 12, 13 | %QX0.0 – %QX0.5 |
| Analog In | A1, A2, A3 | %IW0 – %IW2 |
| Analog Out | 14 | %QW0 – %QW0 |
STM32F103CB (Blue pill)
| Digital In | PA8, PA11, PA12, PB3, PB4, PB5, PB8, PB9 PB10 |
%IX0.0 – %IX0.7 %IX1.0 – %IX1.0 |
| Digital Out | PB11, PB12, PB13, PB14, PB15, PC13, PC14, PC15 | %QX0.0 – %QX0.7 |
| Analog In | PA0, PA1, PA4, PA5, PA6, PA7 | %IW0 – %IW5 |
| Analog Out | PB0, PB1 | %QW0 – %QW1 |
STM32F411CE (Black pill)
| Digital In | PA8, PA11, PA12, PB3, PB4, PB5, PB8, PB9 | %IX0.0 – %IX0.7 |
| Digital Out | PB10, PB12, PB13, PB14, PB15, PC13, PC14, PC15 | %QX0.0 – %QX0.7 |
| Analog In | PA0, PA1, PA4, PA5, PA6, PA7 | %IW0 – %IW5 |
| Analog Out | PB0, PB1 | %QW0 – %QW1 |
Uno, Leonardo, Nano, Micro, Zero
| Digital In | 2, 3, 4, 5, 6 | %IX0.0 – %IX0.4 |
| Digital Out | 7, 8, 12, 13 | %QX0.0 – %QX0.3 |
| Analog In | A0, A1, A2, A3, A4, A5 | %IW0 – %IW5 |
| Analog Out | 9, 10, 11 | %QW0 – %QW2 |
Linux-based boards
Neuron PLC
There isn’t a fixed mapping since Neuron PLCs can be combined with different expansion modules. Mapping is shown on dashboard logs once the Runtime starts and all modules are detected
PiXtend / PiXtend 2L / PiXtend 2S
| Digital In | DI0, DI1, DI2, DI3, DI4, DI5, DI6, DI7 | %IX0.0 – %IX0.7 |
| Digital Out | DO0, DO1, DO2, DO3, DO4, DO5, REL0, REL1 REL2, REL3 |
%QX0.0 – %QX0.7 %QX1.0 – %QX1.1 |
| Analog In | AI0, AI1, AI2, AI3 | %IW0 – %IW3 |
| Analog Out | AO0, AO1, PWM0, PWM1 | %QW0 – %QW3 |
Raspberry Pi
| Digital In | 03, 05, 07, 11, 13, 15, 19, 21 23, 29, 31, 33, 35, 37 |
%IX0.0 – %IX0.7 %IX1.0 – %IX1.5 |
| Digital Out | 08, 10, 16, 18, 22, 24, 26, 32 36, 38, 40 |
%QX0.0 – %QX0.7 %QX1.0 – %QX1.2 |
| Analog In | – | – |
| Analog Out | 12 | %QW0 (PWM) |
UniPi Industrial Platform
| Digital In | I01, I02, I03, I04, I05, I06, I07 I08, I09, I10, I11, I12, I13, I14 |
%IX0.1 – %IX0.7 %IX1.0 – %IX1.6 |
| Digital Out | REL8, REL7, REL6, REL5, REL4, REL3, REL2, REL1 | %QX0.0 – %QX0.7 |
| Analog In | AI1, AI2 | %IW0 – %IW1 |
| Analog Out | AO | %QW0 – %QW0 |
