ICALEPCS2013 - List of Authors (Sawantdesai, P.)

Paper	Title	Page
THPPC004	CODAC Standardisation of PLC Communication	1097
	S. Pande, F. Di Maio, B. Evrard, K. Mahajan, P. Sawantdesai, A. Simelio, A. Wallander, I. Yonekawa ITER Organization, St. Paul lez Durance, France
	As defined by the CODAC Architecture of ITER, a Plant System Host (PSH) and one or more Slow Controllers (SIEMENS PLCs) are connected over a switched Industrial Ethernet (IE) network. An important part of Software Engineering of Slow Controllers is the standardization of communication between PSH and PLCs. Based on prototyping and performance evaluation, Open IE Communication over TCP was selected. It is implemented on PLCs to support the CODAC data model of ‘State’, ‘Configuration’ and ‘Simple Commands’. The implementation is packaged in Standard PLC Software Structure(SPSS) as a part of CODAC Core System release. SPSS can be easily configured by the SDD Tools of CODAC. However Open IE Communication is restricted to the PLC CPUs. This presents a challenge to implement redundant PLC architecture and use remote IO modules. Another version of SPSS is developed to support communication over Communication Processors(CP). The EPICS driver is also extended to support redundancy transparent to the CODAC applications. Issues of PLC communication standardization in the context of CODAC environment and future development of SPSS and EPICS driver are presented here.

Paper

Title

Page

THPPC004

CODAC Standardisation of PLC Communication

1097

S. Pande, F. Di Maio, B. Evrard, K. Mahajan, P. Sawantdesai, A. Simelio, A. Wallander, I. Yonekawa
ITER Organization, St. Paul lez Durance, France

As defined by the CODAC Architecture of ITER, a Plant System Host (PSH) and one or more Slow Controllers (SIEMENS PLCs) are connected over a switched Industrial Ethernet (IE) network. An important part of Software Engineering of Slow Controllers is the standardization of communication between PSH and PLCs. Based on prototyping and performance evaluation, Open IE Communication over TCP was selected. It is implemented on PLCs to support the CODAC data model of ‘State’, ‘Configuration’ and ‘Simple Commands’. The implementation is packaged in Standard PLC Software Structure(SPSS) as a part of CODAC Core System release. SPSS can be easily configured by the SDD Tools of CODAC. However Open IE Communication is restricted to the PLC CPUs. This presents a challenge to implement redundant PLC architecture and use remote IO modules. Another version of SPSS is developed to support communication over Communication Processors(CP). The EPICS driver is also extended to support redundancy transparent to the CODAC applications. Issues of PLC communication standardization in the context of CODAC environment and future development of SPSS and EPICS driver are presented here.