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Rockwell Automation 1746-HSTP1 Stepper Controller Module/ User Manual User Manual

Page 77

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Publication 999-121 - December 1999

B-2 Input/Output Quick Reference

Bit 5

determines the active level of the home
proximity limit switch input

Bit 5

reflects active level of the home prox limit
switch input configured

Bits 6 through
15

not used

Bits 6 through
15

not used

CONFIG OUTPUT WORDS 2 and 3

CONFIG INPUT WORDS 2 and 3

Word 2

starting speed most significant word (MSW)

Word 2

reflects the starting speed most significant

word as configured in output word 2

Word 3

starting speed least significant word (LSW)

Word 3

reflects the starting speed least significant
word as configured in output word 3

COMMAND OUTPUT WORD 0

COMMAND INPUT WORD 0

Bit 0

absolute move

Bit 0

set when the axis is moving CW

Bit 1

relative move

Bit 1

set when the axis is moving CCW

Bit 2

hold motion

Bit 2

set when the module is in a hold

Bit 3

resume motion

Bit 3

set when the axis is stopped

Bit 4

immediate stop

Bit 4

set when the axis is in home position

Bit 5

find home

+

Bit 5

set when the axis is accelerating

Bit 6

find home –

Bit 6

set when the axis is decelerating

Bit 7

jog

+

Bit 7

set when the current move is complete

Bit 8

jog –

Bit 8

set when the module is in a blend move
mode

Bit 9

preset position

Bit 9

send next blend move data bit

Bit 10

reset errors

Bit 10

reset if position is valid

Bit 11

program blend move profile

Bit 11

set when input errors exist

Bit 12

read blend move profile

Bit 12

set when a command error exists

Bit 13

run blend move profile

Bit 13

set when a config error exists

Bit 14

preset encoder portion

Bit 14

set when the module is OK

Bit 15

mode flag:0

= command

1

= config

Bit 15

mode flag:0

= command

1

= config

COMMAND OUTPUT WORD 1

COMMAND INPUT WORD 1

reserved

Bit 0

set when CW limit switch is active

COMMAND OUTPUT WORD 2

Bit 1

set when CCW limit switch is active

Bit 2

set when immediate stop input is active

Position MSW 0 – 8338

Bit 3

set when external interrupt is active

COMMAND OUTPUT WORD 3

Bit 4

set when home limit switch is active

Bit 5

set when home proximity limit switch is
active

Position LSW 0 – 999

Bits 6 through
15

not used

CONFIG OUTPUT WORD 1

CONFIG INPUT WORD 1