Specifications

Analog Input Modules
108
31007715 6/2008
STB ACI 1225 Data for the Process Image
Representing
the Analog
Input Data
The STB ACI 1225 sends a representation of the operating states of its input
channels to the NIM. The NIM stores this information in two 16-bit registers—one
data register for each channel. The information can be read by the fieldbus master.
If you are not using a basic NIM, the information can also be read by an HMI panel
connected to the NIM’s CFG port.
The input data process image is part of a block of 4096 Modbus registers (in the
range 45392 through 49487) reserved in the NIM’s memory. The STB ACI 1225 is
represented by two contiguous registers in this block. The specific registers used are
based on the module’s physical location 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 to index 6423,
subindex 1 in order to receive the input data. 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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