Communication between ControlLogix and GridConnect GC-XPORT-EIP-MB

Dear all,

I am trying to send out a message from
Allen Bradley ControlLogix Controller (Logix5555) via the EtherNet/IP Module 1756-ENET to GridConnect XPORT.

Could anyone advice me on the ladder (RSLogix5000 MSG)
and necessary settings?

With Best Regards
Puisan

Did you get any information from GridConnect on the module ? I just requested a User Manual from them.

Hello Ken,

Thank you for the reply.
I have got a "EtherNet/IP-Modbus XPort" manual from GridConnect,
however, when I was trying to send message from AB ControlLogix,
"SendRRData" (0x6F), which is supposed to be the
command to establish a connection between AB and GridConnect, Fails.
I am not sure if I have missed out any settings at the AB configuration,
or is it because of the ladder logic.

With Best Regards
Puisan

Since I don't have the manual, I will focus on the MSG instruction itself.

On the Configuration Tab of the MSG instruction how is your message configured. For Example, What "message type" have you used? Please describe how this screen (tab) has been configured.

On the Communication Tab, how has the Path been configured?

If possible, try to attach screenshots of these two tabs.

OG

Hello,

Thank you for the reply
My Settings in MSG is as attached.
I attach also Communication data between
AB Controller and XPORT, captured by "Vigil"

With Best Regards
Puisan

I prefer the free "Wireshark" analyzer for EtherNet/IP use, because it partially decodes EtherNet/IP protocol packets.

One unusual thing about the ControlLogix MSG instruction when used with the CIP Generic services is that the Class and Attribute are entered in Hex, but the Instance is entered in decimal. You used Attribute 0x100 (hex) = 409 (decimal).

Change the Attribute entry to Attribute 0x64 (hex) = 100 (decimal).

This is a neat-looking device. Did you buy the one that has an enclosure, or the one that is just the plug with the circuitry inside ?

Hello Ken,


Thank you so much for the advice.
The AB controller is finally getting some response
from the XPORT.

I tried to get Attribute 0x64 and it returned a "1"
According to the GridConnect Manual as attached,
Modbus status "1" means Modbus error-communication with
slave timed-out (was previously established)

Attached config.bin file contains the
current setting of the GridConnect XPORT. Could you
please advise me on the setting of Mapping?


The XPORT i bought is just the plug with the circuitry inside.
We are actually using this on our Display Panel, which we have
in-house design PCB.

With Best Regards
Puisan

Hello,

I have tried configuring the Explicit Set_Single_Attribute
Message by RSLogix5000 as attached, with reference
to the XPORT manual. However, I get an "Insufficient Command Data"
Error (MSG Error message) when I run the program.

Objective of this is to send out string messages
from PLC via GridConnect XPORT to have the message
displayed on a Display Panel.
Therefore I have chosen function 0x04. Please correct me
if I am wrong.

Thank you!

With Best Regards
Puisan

Did anyone ever help him resolve his issue?

I am trying to do a similar thing and am having difficulty getting communications across a Gridconnect Net232 EthernetIP-Modbus converter from Compactlogix PLC.