MSTR Block Data Area Format

The format of the MSTR block data area is:

Word 0


Word 1


Word 2


Word 3

Address of the point to be updated. Valid values are:

1 - 8192 for Coils

10001 - 18192 for Discrete Inputs

3001 - 39999 for Input Registers

4001 - 49999 for Holding Registers

Word 4

Number of bytes of point data being sent. Valid values are 1-190.

Word 5 through Word 99

Point data

More information

Compressed Time-Stamp Format.

Uncompressed Time-Stamp Format.

Compressed Time-Stamp with mSecs Format.

Uncompressed Time-Stamp with mSecs Format.

Modbus TCP/IP Unsolicited Data.