Cannot read the Shark270

[JohnnyMarauder]

Trying to read a Shark 270 Meter from Electro and it just reports Timed Out. Same code is able to read the Nexus1252 meters just fine. I set it up to read 40 registers to get the volts etc, but it just times out. Here is the calling code:

Shark200, Shark270 :
Begin
Try
thereg := 1000;
MM.mbClient.TimeOut := 500;
If MM.mbClient.ReadHoldingRegisters(thereg, 40, MM.MyData) Then
Begin
float.fHi := MM.MyData[0];
float.fLo := MM.MyData[1];
MM.VoltsAN := float.fFloat;
Volts_AN.Text := FloatToStr(MM.VoltsAN) + ' k';
End
Else
Memo1.Lines.Add('timeout reading response.');
Except
On E : Exception Do
Begin
Raise TMetersException.Create('There was a problem reading the meter:'#13#10#13#10 + E.Message);
End;
End;
End;

I setup Wireshark and can see the packet go out and one returns, but the read says nothing is received, I tested the same meter with two ohter modbus tools to see if they worked, and they did. Not sure what to do.