Despatch Protocol 3 Modbus Communications - Manual (Page 4)

P REFACE Modbus Programming Manual
4 Version 2
Copyright © 2012 by Despatch Industries.
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2.8.3. Timer Mode Parameters .................................................................................... 33
2.8.4. Profile Mode Parameters ................................................................................... 34
2.9. Uploading and Downloading of Profiles ............................................................... 35
2.9.1. Instruction Sequence to create a profile at the next available position .............. 36
2.9.2. Instruction Sequence to create a profile at a specified profile position ............. 36
2.9.3. Instruction Sequence to edit an existing Profile Header .................................... 37
2.9.4. Instruction Sequence to read a profile ............................................................... 37
2.9.5. Profile Command Code Descriptions ................................................................ 37
2.9.5.1. Creating a profile header (Command Code CP) ............................................ 37
2.9.5.2. Editing/Creating a profile header at a location (Command Code EP or WP) 39
2.9.5.3. Creating a Segment (Command Code WS) ................................................... 40
2.9.5.4. Editing or Inserting a Segment (Command Codes IS and ES) ...................... 41
2.9.5.5. Segment Info A, B Information ..................................................................... 42
2.9.5.6. Deleting Profiles (Command Code DP and DA) ........................................... 43
2.9.5.7. Deleting a Segment (Command Code DS) .................................................... 44
2.9.5.8. Getting the Number of Segments Remaining (Command Code SR) ............ 44
2.9.5.9. Edit Response Message ................................................................................. 45
2.9.5.10. Reading a Profile Header (Command Code RP) ........................................... 46
2.9.5.11. Read a Segment (Command Code RS) .......................................................... 47
2.9.5.12. Read a profile Name (Command Code PN) .................................................. 49
2.9.5.13. Read Profile Memory Status (Command Code PS) ...................................... 51
Figures
Figure 1. Modbus Link Layer. ......................................................................................................... 8