Rockwell Automation 1794-ID2 U.MNL INCREMENTAL ENCODER - Manual (Page 57)

5–5 How Communication Takes Place and I/O Image Table Mapping with the DeviceNet Adapter
Publication 1794ĆUM015B-EN-P - May 2001
Bit/Word Definitions for the incremental encoder Module (1794-ID2)
Word Bit Definition
Read
Word 1
Bit 00 Status for input A (pulse transmitter 0) - This bit, when set, indicates a signal at A.
Word 1
Bit 01 Status for input B (pulse transmitter 0) - This bit, when set, indicates a signal at B.
Bit 02 Status for input Z (pulse transmitter 0) - This bit, when set, indicates a signal at Z.
Bit 03 Status for input G (pulse transmitter 0) -This bit, when set, indicates a signal at G.
Bit 04 Status for input A (pulse transmitter 1) - This bit, when set, indicates a signal at A.
Bit 05 Status for input B (pulse transmitter 1) - This bit, when set, indicates a signal at B.
Bit 06 Status for input Z (pulse transmitter 1) - This bit, when set, indicates a signal at Z.
Bit 07 Status for input G (pulse transmitter 1) - This bit, when set, indicates a signal at G.
Bit 08 (10) Cal 0 - This bit, when set (1), indicates that counter 0 has been calibrated. This bit is reset by CalReset.
Bit 09 (11) Cal 1 - This bit, when set (1), indicates that counter 1 has been calibrated. This bit is reset by CalReset.
Bit 10 (12) Store 0 - This bit, when set (1), indicates a counter value is saved in store 0. This bit is reset by StoreReset.
Bit 11 (13) Store 1 - This bit, when set (1), indicates a counter value is saved in store 1. This bit is reset by StoreReset.
Bit 12 (14)
Preset Reached 0 (PR0) - When this bit is set (1), in all configuration modes, the counter 0 value equals the
preset 0 value, either in a positive or negative direction. This bit is reset by PresetReset0 and can only be set
again after at least 1 more pulse.
Bit 13 (15)
Preset Reached 1 (PR1) - When this bit is set (1), in all configuration modes, the counter 1 value equals the
preset 1 value, either in a positive or negative direction. This bit is reset by PresetReset1 and can only be set
again after at least 1 more pulse.
Bit 14-15
(16-17)
Not used - set to 0
Read
Word 2
Bits 00-15
(00-17)
Store 0 - Saved counter value on channel 0
Read
Word 3
Bits 00-15
(00-17)
Store 1 - Saved counter value on channel 1
Read
Word 4
Bits 00-15
(00-17)
Channel 0 Current Counter Value- Current value in counter 0
Read
Word 5
Bits 00-15
(00-17)
Channel 1 Current Counter Value- Current value in counter 1
Read
Word 6
Bits 00-15
(00-17)
Counter 0 Readback - Counter word readback - last value written to write word 1
Read
Word 7
Bits 00-15
(00-17)
Counter 1 Readback - Counter word readback - last value written to write word 2
Read
Word 8
Bits 00-15
(00-17)
Revision Read - identification of latest software version code