Installation manual
Publication 1747-RM001G-EN-P - November 2008
12-60 SLC Communication Instructions
• Service Code (hex)
This field is read-only unless the Custom Service is selected. Possible 
Service Codes are 1 to 7F (hex). See Volume 1 of the CIP Common 
Specification, Appendix A, for the list of valid explicit messaging Service 
Codes.
• Class (hex)/(dec)
Possible Classes are 0 to FFFF (hex). See Volume 1 of the CIP 
Common Specification for the list of defined Classes. You may either 
enter in a hexadecimal Class value in the (hex) field or a decimal Class 
value in the (dec) field.
• Instance (hex)/(dec)
Possible Instances are 0 to FFFF (hex). See Volume 1 of the CIP 
Common Specification for the list of valid Instances for each Class. You 
may either enter in a hexadecimal Instance value in the (hex) field or a 
decimal Instance value in the (dec) field.
• Attribute (hex)/(dec)
Possible Attributes are 0 to FF (hex). See Volume 1 of the CIP 
Common Specification for the list of valid Attributes for each Class. 
You may either enter in a hexadecimal Attribute value in the (hex) field 
or a decimal Attribute value in the (dec) field.










