User manual

Table of Contents
Computer Gateway User Manual ii 5/96
4 DATA LINK MESSAGES
4.1 Message Structure and Formats
4.1.1 Message Sequences
4.1.2 Data Link Messages Format
4.1.3 Data Representations
4.1.4 Field-Specific Information
4.1.5 Data Definition Tables
4.2 Communications Handler Messages
4.2.1 Time Synchronization Message
4.2.2 Message Confirmation
4.2.3 Link Failure Message
4.3 Data Link Initialization Messages
4.3.1 CG Restore
4.3.2 Restore Complete
4.3.3 CG Database List Request
4.3.4 ACIDP List Return
4.3.5 CRDP List Return
4.3.6 DDT List Return
4.3.7 Enhanced ACIDP List Return
4.3.8 CG Node List Return
4.4 Program Scheduling and Status Messages
4.4.1 ACIDP Program Mode Change Request
4.4.2 ACIDP Mode Change Return
4.4.3 Get ACIDP Status Request
4.4.4 Get ACIDP Status Return
4.4.5 Turn On ACP
4.4.6 ACIDP Execution State Change Request
4.4.7 Internal DDT Connect or Disconnect Request
4.4.8 DDT/IDB Connect or Disconnect Return
4.5 DDT/IDB Preparation Messages
4.5.1 Build DDT/IDB Request
4.5.2 Build DDT/IDB Return
4.5.3 Store Internal DDT in CG Request
4.5.4 Delete Internal DDT Table from CG Request
4.5.5 Internal DDT Store/Delete Return
4.6 Point-Data Transfers Using Data Tables
4.6.1 Get Data Request (DDT/IDB in CG)
4.6.2 Get Data Request (Internal DDT in Host Processor)
4.6.3 Get Data Return
4.6.4 Store Data Request
4.6.5 Store Data Return
4.7 Single-Point Data Transfers
4.7.1 Processing of Parameters and Parameter Arrays
4.7.2 Get Single Point Request (External Identifier)
4.7.3 Get LCN Time
4.7.4 Get Single Point Return (External Identifier)
4.7.5 Store Single Point Request (External Identifier)
4.7.6 Store Single Point Return (External Identifier)
4.7.7 Convert Identifier Request
4.7.8 Convert Identifier Return
4.7.9 Get Single Point Request (Internal Address)
4.7.10 Get Single Point Return (Internal Address)