User Manual Appendix B
GFK-1742F Jan 2020
DSM314 Communications Request Instructions 404
B-4 The Parameter Load COMM REQ
B-4.1 The Command Block
The Command Block contains the details of a Communications Request. The first address of
the Command Block is specified by the IN input of the COMM REQ Ladder Instruction. This
address can be in any word-oriented area of memory (%R, %AI, or %AQ). The Command
Block structure can be placed in the designated memory area using an appropriate
programming instruction (the BLOCK MOVE instruction is recommended). The DSM
Command Block has the following structure:
Table 88: DSM Parameter Load COMM REQ Command Block
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