Questions tagged [plc]
Programmable Logic Controller
279
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Project setup help: Siemens S7-1200 with Modbus and OPC UA
I'm currently planning a PLC project but I'm not sure how to put the components together.
About my setup:
I want to integrate a Siemens S7-1200 as master PLC.
The PLC should control a subordinate ...
CommunityBot
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156
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PLC Motor Control
Im trying to control the speed of 2 brushed motors with a click plc, I'm using 2 seperate power supplies, 1 for the plc, and 1 for the Motors. Is there any way to alter the voltage supplied to the ...
CommunityBot
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2
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485
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PLC as gateway with TCP/IP communication stack?
I'm having issues designing an architecture for communication in a vehicle. Currently a PC is connected through a switch to a series of ECUS, each one with a TCP2CAN converter. The PC has to be ...
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4
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Interfacing Delta PLC and Arduino (Logic Signals)
I am trying to connect a Delta PLC (DVP-10SX) to an Arduino UNO. What I'm trying to achieve here is to be able to exchange Logic signals between both the PLC which has a logic level of 0-24V and ...
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How may I manually construct CAN message for CANopen?
I understand CANopen uses CAN, the difference is usage and message type. I have basic CAN capable device and I want to control industrial motor controller, which uses CANopen.
I have its EDS file, but ...
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190
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Using the PLC output to mimic a NPN sensor as the input to a device
I got a device which has a connection to a NPN proximity sensor, it'll do something when the sensor is being trigged.
Now I remove the sensor, using a PLC(24vdc) to do the job of sending the signal to ...
CommunityBot
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1
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179
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4-20mA PLC analog output ground referencing for other devices
I'm currently using a PLC to control an induction heating coil.
I'm using a chinese induction driver that allows 4-20mA PID input. This device runs off standard australian 230v AC 50hz.
I've ...
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Transmitter / receiver connection order in current loop (4-20mA)
Is the order of transmitter and receiver connection in the current loop important? I have +24VDC power supply unit, PLC with current analog input and the sensor (for test case it's just 2.35kOhm ...
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Detect if 3-phase 110VAC motor is running via 24VDC PLC input
We have an industrial machine with 3-phase ~250W AC (~2.5A @ 110V) motors on it. I want to non-invasively detect if the motors are running. That detection signal needs to feed into the 24V input of ...
CommunityBot
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4
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SSI to RS485 communication protocol
How do I interface a positioning sensor with SSI interface with an OMRON safety PLC with only RS485 interface? I understand both are serial, but would I loose resolution if I interface it?
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Amplifying Current from 0-20mA to 3A
I would like to drive a pump with a PLC. The PLC generates analog output signal of 0-10V with 0-20mA and the pump runs at the same voltage but 3A current. Is there any solution to this problem?
Thank ...
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I keep getting this error but don't know why "Invalid input. - input required but omitted"
Please help me by checking if my program is correct or giving the correct ladder program. I keep getting "Invalid input. - input required but omitted" this error for all the variables in ...
CommunityBot
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3
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91
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Convert 0-10V signal to 0-20mA (PLC)
I am designing at the time a process in which we will use a PLC to control some valves and mass flow controllers. The PLC we have has an input module for 0-20 mA. One of our sensors (flow measurement) ...
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Unable to access the module error while trying to simulate a simple PLC Lad program
I am learning PLC and trying to simulate a simple program on Schematic Manager. But I'm having this error that says ...
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XTR111 4-20mA/0-10V before mux stage
I am currently designing a PLC-like module based on a STM32 microcontroller. I want to have up to 8 analog outputs generating 0-10V or 4-20mA signal. I am heavily relying on this design by TI: https://...
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