Odd ‘n’ ends… {Some probably hopelessly archaic}
C37.1-1994 IEEE Standard Definition, Specification and Analysis of Systems Used for Supervisory Control, Data Acquisition, and Automatic Control
999-1992 PDF IEEE Recommended Practice for Master/Remote Supervisory Control and Data Acquisition (SCADA) Communications
1613-2003 IEEE Standard Environmental and Testing Requirements for Communications Networking Devices in Electric Power Substations
1267-1999 IEEE Trial Use Guide for Development of Specification for Turnkey Substation Projects
1379-2000 IEEE Recommended Practice for Data Communications Between Remote Terminal Units and Intelligent Electronic Devices in a Substation
Possibly applicable titles:
IEC 60488.1-2004 IEC/IEEE Higher performance protocol for the standard digital interface for programmable instrumentation – Part 1: General
IEC 60488.2-2004 IEC/ IEEE Standard Digital Interface for Programmable Instrumentation--Part 2: Codes, Formats, Protocols, and Common Commands 61588-2004
61588-2004 IEC/IEEE Precision clock synchronization protocol for networked measurement and control systems
There’s also C37.111- and 1159-type standards that somewhat mesh with SCADA in utility settings.