CDK-111A-Lite Owner's Guide - Ross Video

Error Code byte values00 No_err No errors have occurred since the last messagewas received.01 Checksum_err The checksum computed by the CDK-111A-Litedid not match the checksum in the message.02 Command_err Invalid or unrecognized Command-Class/ Sub-Command combination.03 Bitfield_err Invalid combination of bits selected in a datafield.04 Selection_err Invalid selection in data field.05 Range_err Number in data field is out of range.06 Feature_err Requested feature is not implemented or notavailable.07 Install_err Requested feature is not installed.08 Internal_err Internal processing error.09 Auto_disabled Automation interface currently disabled.10 Other_err Other unexpected error (not fitting into any of thecategories listed above).Command Class byte valueByte code found in the Command Class position of the message. This field will bezero for the No_Err and Checksum_Err error codes.Sub-Command byte valueByte code found in the Sub-Command position of the message. This field will bezero for the No_err and Checksum_err error codes.Byte Position byte valueApproximate byte position in the message where the error was found (starting withthe first byte after the STX and overall message byte count). This field will be zerofor the No_err error code.Offending Data byte valueData that was found to be in error. If the data corresponding to the Command Classand Sub-Command is less than four bytes (as defined in the protocol), the data willbe put in the least significant bytes of the 4-byte data field. This field will be zero forthe No_err error code. For a Checksum_err, the data field will contain the checksumcalculated by the CDK-111A-Lite.Argument Number byte valueArgument or field number where the offending data was found.Protocol / Version (0x21, PROTO_VER)This query is provided so the controller of the M–2100 can inform the tributarywhich version of the M–2100 protocol is being used. The M–2100 (tributary) willrespond with the version of the protocol that it is using. Incompatible versionsbetween the controller and tributary may yield inconsistent results. The major/minorversion is typically expressed in combination such as 2.1, where “2” is the majorversion and “1” is the minor version.The major number is incremented if a change to the protocol or the applicationswhich use the protocol is not backward compatible and will break the operation of4-36 • Appendix A. Serial Protocols CDK-111A-Lite • Owner’s Guide v4B