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Overall Score (4.7)
(76 reviews / 72 comments)
75 out of 76 reviewers would buy this item again.
User Friendly Product and affordable
I use this unit for remote I/O using modbus TCP. You really can't beat it for price and ease of programming. The address picker in the software shows the modbus addresses and that makes it even easier. I've had no trouble at all with the unit and there is plenty of room to expand with more I/O if needed.
Great value. Easy to setup. Ethernet port plus the RS-485 makes for a great control and or communication device. Easy to set up with Cmore HMI products.
I've used several of these when retrofitting controls on older equipment,this takes the place of a dozen or more( with expansion modules) interposing relays. This really saves time mounting and wiring the relays,and I'm able to improve some functions because of the logic/ programming flexibility.
Works well, Free software. Wish wires exited the side of the terminal rather than straight on.
Great little PLC for money. However, I have two gripes. The analog outputs are mostly unnecessary. I'd prefer more digital I/O on the CPU to negate the need for more I/O modules. I also wish the terminal blocks were separated. One block for the inputs, one for the outputs, and one for the Analog points. I say this because unplugging the single long terminal strip once installed in an enclosure is difficult as you need a lot of force to remove it.
I recently used 2 Clicks in an assembly machine, with one plc per station. They are networked using Modbus on RS485, with a 6" C-more micro panel as the master for entry of data and settings. I can't say enough about the versatility and value of this little plc. Having 3 serial ports allowed me to use port 3 (485) for comm with the touchscreen, while sending serial commands to a stepper drive on port 2. I implemented job storage with 99 presets and other helpful features, and still had about 75% of the program memory left. I was concerned about the 8000 step limitation, but by using subroutines and efficient coding, it proved to not be an issue at all. The only issue I ran into was not being able to use text efficiently, like the other (3x or higher priced) controllers. There was just not enough memory to allow for Strings of any usable length to be stored. I knew there would be limitations, and it was more than an acceptable trade-off considering the cost of the controller in my budget-sensitive application. The implication was that my job storage was numerically named rather than allowing for a text-based name. Not a big deal in this application. I really liked that the Modbus address was displayed in the Address Picker. Very helpful. If you can deal with the limited instruction set, this is an outstanding value and punches way above its class.
Thank you to AutomationDirect for making analog I/O for the Click!
I have used the C0-11ARE-D, as well as other Click CPUs on many projects, including as a Modbus slave over serial radio link, simultaneously with local wired ethernet, and have never been disappointed. I used the RS-485 port to R/W registers in two VFDs, and used the ethernet port for Cmore and plant SCADA; no problems. The instruction set is small but adequate. You can make your own "Scale with Parameters" (SCP) instructions using Math and put them in their own subroutines. These "SCP" instructions can also be implemented to effectively pace pumps on VFDs for level control. I have done this many times with no issues. You can use the Copy instruction to convert integers to hex; hex to binary, etc. Comes in handy when using control and status words in VFDs.
only thing that i dont see is a way to let dhcp assign ip addresses. other than that, pretty cool.