Hello.
I 'm reading 3 registers (03 holding registers) of PAC3200 with a CPU 314.
The type of communication used is Modbus TCP.
I'm using AG_SEND and AG_RECV block.
I'm able to receive the data and  save in the array
But every time requesting a new reading, the data are not saving at the same position of the array
 
example:
 
1st reading value ofsset 3 is saved in position 1 of the array.
2nd reading ofsset value 3 is stored in the 2-position of the array.
and always so on.
 
Any idea of this happening?

Thanks
 
Cumps

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Split from Modbus function code 3 Holding Registers.

Hi,

 The same prob came in open TCP/ip with third party device but no solution yet..pls

publish wen u solve it..