SERIAL TO ETHERNET 1756-L72 (ControlLogix 5572) Controller

[myeboah2]

hi all,

I have a customer who has a A-B PLC 1756-L72 (ControlLogix 5572) Controller. He support only Ethernet but my device can only go serial..is there a simple way to convert the serial communication to Ethernet for this PLC

 

[JeremyM]

Need more information.

 

[Vmkumar]

Hi..
New control logix type controller does not have inbuild serial port.

Please tell whwhat application your going to use.

 

[myeboah2]

Need more information.

what information do you need?

 

[JeremyM]

What is 'my device'?

 

[phuz]

Hi..
New control logix type controller does not have inbuild serial port.

Please tell whwhat application your going to use.

That's OK because his device is serial and he's looking for a protocol converter to make it Ethernet.

Although he hasn't provided what his device is so that we could suggest a specific gateway/converter to use.

 

[Ken Roach]

what information do you need?

If you can describe the device in detail, that would be great. Like "it's a Intellimatic Mark 4 Sandpounder with an RS-232 port".

The type of serial connection is important. While RS-232 is the most common, RS-422 or RS-485 or still other types are possible.

The protocol is probably the most important. Is the communication ASCII ? Modbus ? DF1 ? Morse ?

Is it full-duplex (two way simultaneous) or half-duplex (two way, one at a time) or simplex (one way) communication ?

There are several standalone gateway devices that will interface a serial device to a ControlLogix over Ethernet. They vary in complexity, cost, and performance.

The first four I would look at are the A-B 1734-232ASC POINT I/O modules, the Red Lion DataStation Plus, the Real Time Automation RTA gateways, and the HMS Fieldbus Communicator.

 

[phuz]

The datastation is the first device that came to mind, but IIRC, that's a ~$1,400 device.

 

[Ken Roach]

We haven't even gotten to the subjects of data rate, translation performance, or budget.

The simplest DataStation Plus is under $600. Most solutions are going to be in the $500 to $1000 range all told.