The 170 ADM 390 30 TSX Momentum I/O base supports 10 discrete inputs and 8 discrete outputs. This section contains information about the mapping of the I/O data into input words and output words.
The I/O base may be mapped as one input word and one output word, or as 10 discrete input points and 8 discrete output points.
In order to correctly field wire the inputs/outputs and map the input/output data, you need to know which type of Momentum Adapter is mounted on the base.
Adapters may be either IEC compliant or 984 Ladder Logic compliant.
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IEC Compliant
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984 Ladder Logic Compliant
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Momentum Processor Adapters
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All
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None
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Momentum Communication Adapters
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All, except
170 NEF 110 21
170 NEF 160 21
170 FNT 110 00
170 FNT 110 01
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170 NEF 110 21
170 NEF 160 21
170 FNT 110 00
170 FNT 110 01
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The figure below shows how data is mapped on the I/O base with an IEC Compliant adapter. When the I/O is mapped as discrete points (1x/0x), the MSB is assigned to Pin 1 and the LSB is assigned to Pin 16. When I/O is mapped as a word or register (3x/4x), the MSB (bit 15) is assigned to Pin 16 and LSB (bit 0) is assigned to Pin 1.
The figure below shows how data is mapped on the I/O base with a Ladder Logic Compliant adapter. When the I/O is mapped as discrete points (1x/0x), the MSB is assigned to Pin 16 and the LSB is assigned to Pin 1. When I/O is mapped as a word or register (3x/4x), the MSB (bit 15) is assigned to Pin 1 and LSB (bit 0) is assigned to Pin 16.
