Specifications

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3401 Manual
Point I/O Stepper Module
Revision 2.0
Configuration Mode Input Data
(Four 16 bit words sent from the 3601 module to the PLC)
While in configuration mode, the input registers will mirror the configuration data that was sent to the
3401 module in the output registers. The exceptions are the Module OK bit, input word 0, status bit 14
and the Configuration Error bit, input word 0, status bit 13.
16 bit Input
Word
ControlLogix ControlNet,
Ethernet Systems, &
1769-L18 Systems
Configuration Input Data
0 Always Zero
1 Always Zero
0 2 Mirror of Configuration Bits MSW
1 3 Mirror of Configuration Bits LSW
2 4 Mirror of Starting Speed MSW
3 5 Mirror of Starting Speed LSW
Note: Input Word 0, bits 13 to 15 are not mirrored. These three bits always function as status bits,
regardless of whether the 3401 module is in Configuration or Command mode.