EGX100 / Power Meter to Citect

Hey Fella's,

Been asked to pull some trend data out of some EGX100 units. They are on Ethernet back to a switch, and I think they talk rs485 to the power monitor units.

Anyone have the communication settings for citect that I could use?

Is one egx100 to one power monitor.

Done plenty of Rockwell setups in the past but not this.

Anyone help get us started? cheers

What protocol, Modbus, Modbus TCP, TCP/IP?

ok, got some of this working - still have some further questions however.

The EGX 100 gateway unit is connected to a Schneider PM 3250 power monitor via rs485 / Modbus.

citect comms setup - the node number of the pm3250 was set up as #8



tag setup - note from the register table - needs a 4 in front of the holding register number

also had to make the following change to the citect.ini file :
[MODNET]
FloatMode = 1

stuff I would like to know how to do
1..on the pm3250 unit, there is a kwh totaliser (378249 value)

I cant see which registers hold that totaliser figure, and they are a 'int64' type - anyone know how to decipher that?

2..How to reset the maximum current values via citect - I assume they are for the month??

3..Is possible to collect this data using rsview32 instead if citect? Can rsview32 be used for Modbus over Ethernet??

Sorry to bump my own thread, but am desperate to get this thing going - hoping for a .ctz file I can chew on

robbo said:

stuff I would like to know how to do
1..on the pm3250 unit, there is a kwh totaliser (378249 value)

I cant see which registers hold that totaliser figure, and they are a 'int64' type - anyone know how to decipher that?

Click to expand...

It takes 4 consecutive registers as standard modbus register is 2 bytes long

robbo said:

stuff I would like to know how to do
2..How to reset the maximum current values via citect - I assume they are for the month??

Click to expand...

Directly on power meter, through setup...

robbo said:

stuff I would like to know how to do

3..Is possible to collect this data using rsview32 instead if citect? Can rsview32 be used for Modbus over Ethernet??

Click to expand...

As I recall you need OPC for rsview32 and modbus, but I'm not sure. Anyway bot EGX100 and Citect are Schneider Electric, so my suggestion is to stick ti Citect.

decided to cheat and pulled the PM3250 data thru the EGX100 gateway and into a message in a micrologix 1100. Can read from the MLX from rsview32 easier that way. Will throw it into a CLX in a few weeks but good to see it working in the 500

data table / message conversions


don't forget in the channel configuration for channel 1, tick the box that is " Modbus TCP enable" then cycle power to the plc.

message setup and register conversion code




hope someone finds this usefull. be good if the vendors had all this info out there to begin with - anyway...

@Robbo,

I'm looking to do basically the same thing you did/are doing. I want to pull data into a CLX processor from an EGX100 that has 5 devices daisy chained via RS-485. (L61Processor-CAT6-EGX100--RS485--Dev1--Dev2--...Dev5).


I tried looking at your screenshots above for help but the resoultion isn't high enough for me to make out clearly what they say. Could you post the MSG instruction screen shot again for me, but more clearly?


I see your Modbus address is 43000. Where does the 4 come from? I see in your data tables above a few 4s, but not sure if that is merely coincidence. I'm not sure of the headers on those data tables.


Also, you seem to flip the order of the integers. Why is that?


What is the port # in the MSG instruction?


Thanks so much for the help. This is my first time working with the EGX and Modbus so your examples above have been very instructive. Looking forward to your response.