ELNet LT - 6.1.5 - Data Field; 6.1.6 - Check Field

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6.1.5 — Data Field
The Data field contains the body of the message and contains
instructions from the PC master to the Powermeter slave to perform
a particular action or respond to a query. The reply message from the
Powermeter will be information contained in one or more of its
registers.
6.1.6 — Check Field
The error check field contains the result of Cyclical Redundancy
Check (CRC). The start of the message is ignored in calculating the
CRC.
For more detailed information on CRC, refer to the MODBUS
Protocol Reference Guide.