Specifications
Analog Input Modules
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STB AVI 1400 Data and Status for the Process Image
Representing
the Analog
Input Data
The STB AVI 1400 sends a representation of the operating states of its input
channels to the NIM. The NIM stores this information in sixteen registers—eight data
registers (one for each channel) and eight status registers (one for each channel).
The information can be read by the fieldbus master or, if you are using a standard
NIM, by an HMI panel connected to the NIM’s CFG port.
The input data process image is a block of 4096 Modbus registers (in the range
45392 through 49487) reserved in the NIM’s memory. The STB AVI 1400 module is
represented by sixteen contiguous registers in this block, which appear in the
following order:
z 1st register = channel 1 data (16 bits)
z 2nd register = channel 1 status (8 bits)
z 3rd register = channel 2 data (16 bits)
z 4th register = channel 2 status (8 bits)
z 5th register = channel 3 data (16 bits)
z 6th register = channel 3 status (8 bits)
z 7th register = channel 4 data (16 bits)
z 8th register = channel 4 status (8 bits)
z 9th register = channel 5 data (16 bits)
z 10th register = channel 5 status (8 bits)
z 11th register = channel 6 data (16 bits)
z 12th register = channel 6 status (8 bits)
z 13th register = channel 7 data (16 bits)
z 14th register = channel 7 status (8 bits)
z 15th register = channel 8 data (16 bits)
z 16th register = channel 8 status (8 bits)
The specific registers used are based on the module’s logical address on the island
bus.
Note: When this module is used with the STB NCO 2212 or STB NCO 1010
CANopen NIMs, you must set the analog global interrupt enable object (index
6423, subindex 0) to a value of 1.For more information on analog global interrupt
enable, see the Advantys STB Standard CANopen Network Interface Module
Applications Guide (890 USE 176) or the Advantys STB Basic CANopen Network
Interface Module Applications Guide (890 USE 193).
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