GE IC697VDQ120 Digital Output, 64 point
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This manual contains general information about PACSystems CPU operation and program content. It
also provides detailed descriptions of specific programming requirements.
Chapter 1 provides a general introduction to the PACSystems family of products, including new
features, product overviews, and a list of related documentation.
CPU hardware features and specifications are provided in Chapter 2.
Installation procedures are described in the PACSystems RX7i Installation Manual, GFK-2223 and the
PACSystems RX3i System Manual, GFK-2314.
CPU Configuration is described in Chapter 3. Configuration using the programming software
determines characteristics of module operation and establishes the program references used by
each module in the system. For details on configuration of the embedded RX7i Ethernet interface as
well as the rack-based RX7i and RX3i Ethernet Interface modules, refer to TCP/IP Ethernet
Communications for PACSystems, GFK-2224.
CPU Operation is described in Chapter 4.
Programming Features are described in Chapter 5 through Chapter 9 and in Appendix A.
■ Elements of an Application Program: Chapter 5
■ Program Data: Chapter 6
■ Ladder Diagram (LD) instruction set reference: Chapter 7
■ Function Block Diagram (FBD) instruction set reference: Chapter 8
■ The Service Request Function: Chapter 9
■ The PID Function: Chapter 10
■ Structured Text (ST): Chapter 11
Ethernet and Serial Communications are described in Chapter 12.
Serial I/O, SNP, and RTU Protocols are described in Chapter 13.
Diagnostics, including Fault Handling and Diagnostic Logic Blocks are described in Chapter 14.
Instruction Timing is provided in Appendix A.
User Memory Allocation is described in Appendix B.