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Check if you have forgotten to activate debouncing. You can do this in PiCtory with the setting "InputDebounce".
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Would it be possible to write in Input registers (Holding registers) of Virtual Modbus TCP server?
Yes, have take a look at the tutorial How to Use RevPi Core as Modbus TCP Master.
The Function Code "READ_HOLDING_REGISTERS" is implemented (Read a whole 16-bit input/output register).
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What is mean by this cryptic error description of the DIO Module - Bit 7: Error prompt of the input IC?
This status originate originates from the 8 Bit Diagnostic Truth Table on p. 20 in the MAX14900E data sheet.
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Thus, the error can be triggered by "overload", "open load" or "under voltage".
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Additional Information:
Modular Gateway
Gateway module for serial network
Gateway module for Modbus RTU
RevolutionPi Revolution Pi Gateway Tutorial
My Pi Bridge freezes with the classical error in kernel logs: "too many communication errors → set inputs to default". What can I do?
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Please perform a firmware update of the DIO Module. There were changes in firmware version 1.5. Which affect affects the timeout behaviourbehavior.
https://revolutionpi.com/tutorials/images/firmware-update/
What can I do, when DIO module with PNP Sensor not giving Data?
If your power supply on X4 is really 24V and after setting 02 to 1 (piTest -w O1,1) and getting 11V, The first interpretation would be that you are using the wrong ground. The X2 supply on top of the RevPi is the one that supplies the inputs and outputs. So make sure you use the ground for this supply and not the ground at the bottom for the X4 supply, which is exclusively for the CPU supply. Another reason would be that your RevPi Dio DIO is defective.
I have an AIO module and I want to make
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an RDT measurement with a PT-1000 resistor. The problem is, but the readings do not change. What can I do?
Please follow the link below : RTD-Messung erkennt PT-1000 nicht - Revolution Pi Forum
Turning on outputs of DO module via Node-Red does not work. When we set the pins to 1 (via shell and via
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Node-RED) we get no signal on the pins. What can be done?
Please update Pictory PiCtory Version 2.0.6 and for more details look at this link: DO Modul Module - Ausgänge schalten nicht - Revolution Pi Forum
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https://revolutionpi.de/forum/viewtopic.php?f=3&t=3073
What is the difference between the RevPi AIO module and
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RevPi MIO module?
In the link below, you will find the Data Sheets of the AIO and MIO modules. So all the info that you are looking for, will be there: https://revolutionpi.com/tutorials/down ... enblaetter
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Revolution Pi Gateway Tutorial
After connecting the DIO module to a RevPi module, the power LED flashes red. What to do there?
Have Take a look at Tutorial 12 – Digital IO Modules application example
https://revolutionpi.com/tutorials/video-tutorials/?noredirect=en_US#VT12
Have Take a look at the Quick Start
https://revolutionpi.com/tutorials/quick-start/?noredirect=en_US
Read the tutorial Connecting I/O Modules and RevPi Gates
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Unfortunately, you can't change this behaviourbehavior.
How to …?
How is the I/O data exchanged between RevolutionPi Revolution Pi and IO modules?
In Little Endian format.
https://revolutionpi.com/tutorials/video-tutorials/?noredirect=en_US#VT12
How to wire the RevolutionPi Revolution Pi AIO, MIO, DIO, DI, DO modules?
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RevPi AIO module is suitable For passive 2, 3 (this version isn't shown) and 4 wire wires ; but not for active RTD sensors! . For how I can connect an analogue sensor to the RevPi AIO module, see here: https://revolutionpi.de/forum/viewtopic.php?t=3407
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How can I use the high-side or push-pull mode of the RevolutionPi Revolution Pi DIO?
Yes, you can find the application notes about the high-side and push-pull modes in the following links
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https://revolutionpi.de/forum/viewtopic.php?f=6&t=2535&p=9196&hilit=bitmirror#p9196
RevolutionPi Python Introduction
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Would it be possible to configure an AIO to output voltage depending on boolean message?
Check out our forum: https://revolutionpi.de/forum/viewtopic.php?t=3487
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Is there a possibility to establish a LIN bus communication with your RevolutionPi Revolution Pi or are there extension modules that can do this?
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All 14 output ports can supply 500mA simultaneously, in highside High-Side mode.
If the module gets too warm, all ports are switched off. This prevents the device from being damaged.
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What I want to know is on the Digital input what is classed as a 0 (Off) and what is classed as a 1 (On)
Have Take a look in at the Link below:
https://revolutionpi.de/forum/viewtopic.php?t=960
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Yes, for more details: connecting GND pins for AIO module, how few can I get away with? - Revolution Pi Forum
Using a DO or DIO module,
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would it be possible to activate Hi-Side Switch and Push-Pull selectively for individual channels?
Yes, there is a variable "OutputPushPull". This consists of a bit field for each channel.
https://revolutionpi.de/forum/viewtopic.php?f=3&t=2445&p=8878&hilit=OutputPushPull#p8878
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No, the position of the modules on the RevPi Core is independent of the cycle time.
All devices are polled one after the other.
In case of a voltage loss at the X2 connection of the
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Revolution Pi DIO, signal 1 is output at all inputs (I1 -I14). Is this
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behavior normal?
Depending on the observation, a reason can be found for a "0" or "1" in this specific case. The fact that the input supply voltage is missing can be recognized via the status bits 1 + 2, 4 + 5. A description can be found here:
https://revolutionpi.de/tutorials/ubersicht-revpi-i-o-module/konfiguration-dio-di-do/
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