With Wireshark I see write Multiple Registers.
ModbusTCPCom1.Write("F42002", "2") '16 Bit R/W Integer
No problem reading or writing to Integer as Noted Above.
ModbusTCPCom1.Write("F42018", ".2") '16 Bit R/W Floating
Problem is with Floating register.
Can read ok, just when I write as Wireshark indicates Write Multiple Registers , no error, data does not post to register.
Thanks