4.2 CPU Module Specifications4.2.7 System Register Specifications4-54 Expansion System Service Execution StatusThe data in these registers give the execution status of the system when the Units areexpanded.Unit and OptionalModuleInformationSW13748Rack 1 Unit 1Slot 1Optional Unit and ModuleID (Low)SW13749 Optional Unit and ModuleID (High)SW13750 Hardware version (BCD)SW13751 Software version (BCD)SW13752 Number of sub-slots (hex)SW13753 to SW13755 Reserved for system.SW13756 Function Module 1 ID(Low)SW13757 Function Module 1 ID(High)SW13758 Function Module 1 StatusSW13759 Reserved for system.SW13760 Function Module 2 ID(Low)SW13761 Function Module 2 ID(High)SW13762 Function Module 2 StatusSW13763 Reserved for system.SW13764 to SW13779 Slot 2 Same as above.SW13780 to SW13795 Slot 3SW13796 to SW14259 Reserved for system.The Optional Module information data for Racks 2 to 4 is stored in SW00880 to SW01095.Refer to the following sections for details. Module Information on page 4-26Name Register Addresses RemarksData Trace DefinitionExistence SW15998SB159980 Group 10: Definition does notexist,1: Definition existsSB159981 Group 2SB159982 Group 3SB159983 Group 4SB159984 to SB15998F Reserved for system.Data Trace ExecutionStatus SW15999SB159990 Group 10: Tracing in prog-ress, 1: TracingstoppedSB159991 Group 2SB159992 Group 3SB159993 Group 4SB159994 to SB15999F Reserved for system.Group 1 Record No. SL16000 Latest record number in group 1.Group 2 Record No. SL16002 Latest record number in group 2.Group 3 Record No. SL16004 Latest record number in group 3.Group 4 Record No. SL16006 Latest record number in group 4.Reserved for system. SL16008 Reserved for system.Reserved for system. SL16010 Reserved for system.Continued from previous page.Name Register Addresses RemarksInformation