GE 90-30 CPU 363 modbus communication with Schneider PM5310

Hi there
Im struggling to establish modbus communication with PM5310,
I am using COMMREQ function block with below command block format
Word 1>7
Word 2>0
Word 3>8
Word 4>1016
Word 5>0
Word 6>0
Word 7>8002
Word 8>3
Word 9>3
Word 10>1
Word 11>10
Word 12>8
Word 13>1201
Word 1>0

I can see meter is communicating with PLC but im unable to read the data .
Looking for gurus to help me

What are you trying to accomplish with the single word MOV_INT instructions following the BLKMOV_INT? The second BLKMOV instructions copies the data from the left side of the function block to addresses %R1137 - %R1143. Then the MOV_INT instructions immediately overwrite the values in %R1137, %R1139, %R1140, %R1141, and %R1142.

I have multiple slave meters and this is done to read the individual slave id addresses and data to read

Did you perform a COMREQ with function code FFF0 before executing the COMREQ you chowed? That is the command to set up the serial port for RTU master at the correct port parameters.
Leaving out the extra MOV_INT instructions and just looking at the second BLKMOV instruction.
The value of 1 in %R1137 means you are trying to talk to Modbus ID 1.
The value of 3 in %R1138 means you are sending Modbus command code 3 (Read registers, Modbus 4xxxxx memory).
The value of 1 in %R1139 means you are starting at register 1 (Modbus 400000).
The value of 10 in %R1140 means you want to read ten registers.
The value of 8 in %R1141 means you want the data that comes back from the slave to be stored in %R memory.
The value of 1201 in %R1142 means you want the first word data that comes back from the slave to be stored in %R1201.

Actually I have three meters
1 is GE PQM2 which is working fine ,I am unable to read any data from PM5310 meter , I am sending the link of my PLC program in my actual post ,kindly review and let me know as I am not sure if PM5310 is using 32 bit data format