Link 150 with IEM 2055

[dpellegrin_mans]

Hi 

Getting difficulties to communicate with IEM 2055 devices with Link 150 via modbus RTU

All paramters modbus settings look ok.

Anyone did work with these 2 equipment?

[Randi_Dolan]

Hi,

I'm not an expert on either of these devices.  However, I have a little experience with the iEM2055.  This device requires that each parameter (Voltage, Current, etc) be read as a separate read.  So, if you want to read Current you have to read only 2 registers @address 3000.  Even if there is contiguous data, the parameter needs to be read standalone (ex. Energy registers that are near each other.  You can only read 4 registers, not 8 to get both Energy readings).

I hope this helps.

Randi

[Anonymous user]

IEM2055 will not respond correctly if the registers are not polled correctly.

Kindly ensure the below communication settings in serial port of Link 150 are the same with the settings in IEM2055 meter

1.Baudrate,Parity should be same in Link 150 and Meter

2.Connection details should be as below

Connection details between Link 150 and IEM2055 meter

1.Pin4 of Link 150 to be connected to 23 in IEM2055

2.Pin 5 of Link 150 to be connected to 24 in IEM2055

For IEM 2055 to test communication from web page you can use the slave ID of the meter and starting address as 31 with length of 20.This should give the response.

Termination resistor is optional. It is required in the case if there are too many devices connected on the same serial network or if the serial cable length is crossing 2000mts

[Jun_Escano]

this is indeed the way how you communicate with these meters.