7 Product-specific CAN objects XN300 slice modules7.14 XN-322-4AI-PTNIGateway XN-312-GW-CAN 06/16 MN050003-EN www.eaton.eu 1717.14.7 Analog Input Interrupt Negative Delta Unsigned (Object 0x6427)Object 0x6427 defines the negative fluctuation range (delta) relative to thelast transmitted value when counting down and affects the transmission ofobject 0x6401 accordingly ￫ Figure 71, page 164.The specified fluctuation range refers to the data transmitted in object0x6401 and accordingly must be specified as an unsigned value with thesame value representation.Object 0x6401 will be transmitted (CAN transmission) if all of the followingconditions are met:• The current value (ENTRY into 0x6401) is less than the last transmittedvalue and the difference is greater than or equal to the fluctuation range(Negative Value Difference 0x6427).• Object 0x6421 is set to enable.• The global interrupt in object 0x6423 has been enabled with: TRUE.Design of the data bytes:3 Byte Byte 2Sub index1≦n≦254B31B30B29B28B27B26B25B24B23B22B21B20B19B18B17B16Not relevant Not relevantFeature Description / Value EDSName AI_NEGATIVE_DELTA_VALUE [MxSubExt6427]Parameter-Name=AI_NEGATIVE_DELTA_VALUEObjectType=0x7DataType=0x0007AccessType=rwDefaultValue=0x00000000HighLimit=0x0000FFFFPDOMapping=0Count=4Description Analog Input Interrupt Negative Delta UnsignedObject Code ARRAYMapping SDOData type UNSIGNED32Sub index 01 … FE exAccess rwDefault value 00000000 hex1 Byte Byte 0:Sub index1≦n≦254B15B14B13B12B11B10B9B8B7B6B5B4B3B2B1B0MSBLSB
