Rockwell-automation 1794-ID2 U.MNL INCREMENTAL ENCODER Bedienungsanleitung PDF herunterladen (Seite 71)

6–9Input, Output and Configuration Files for Analog Modules when used with ControlNet

Publication 1794ĆUM015B-EN-P - May 2001

Definition

BitOutput

Word

Word 1 Channel 1 Control Word - Control word for setting the function of counter 1.

Bits 00-02 02 01 00 Mode Selection bits

0 0 0 Counting on positive (rising) edge of input signal A. (Up/dwn counting determined by B.)

0 0 1 Quadrature encoder X1

0 1 0 Quadrature encoder X2

0 1 1 Quadrature encoder X4

1 0 0 Counting up on the positive edge of input signal A, and down on positive edge of input signal B.

1 0 1 No count function.

1 1 0 No count function.

1 1 1 No count function.

Bit 03 Preset bit - A positive edge on this bit moves the value in Preset X to Counter X, independent of Preset Enable.

Bit 04 Preset Enable bit - When this bit is set (1), a positive edge on Z preloads CounterX=Preset X, independent of

Cal Enable.

Bit 05 Count Enable bit - When this is set (1), the pulse counter is counting.

Bits 06-08

(06 10)

Calibration Control bits - bits 06, 07 and 08

(06

10)

06 Enable bit - When this bit is set (1), the counter can be calibrated.

07 Direction bit - When this bit set (1), calibration is performed in a negative direction; when reset (0),

calibration is performed in a positive direction.

08 Reset bit - Calibration is acknowledged and a new calibration is enabled on a positive edge on this bit.

Bits 09-10 10 09 Gate Control bits

0 0 No gate function on input G

0 1 Counting only if G is high (active)

1 0 Counting only if G is low (inactive)

1 1 Calibration if G is high (active) and ???

Bits 11-12

(13-14)

12 11 Store Control bits - These bits will trigger a Store only if the channel Store status bit (L0 or L1) is

cleared (0).

0 0 Save the counter value on the positive edge of Z (if StoreX=0)

0 1 Save the counter value on the positive edge of G (if StoreX=0)

1 0 Save the counter value on the negative edge of G (if StoreX=0)

1 1 Save the counter value on the positive edge and negative edge of G (if StoreX=0)

Bit 13 Rollover bit - When set (1), the counter counts up to the preset and then restarts at 0. If this bit is reset (0) (not

rollover), the rollover preset value = FFFF (hex = 65535 (decimal).

Bit 14 Store Reset bit - A positive edge on this bit resets Store X in Signals.

Bit 15 Store Reset bit - A positive edge on this bit resets Preset Detected in Signals.

Word 2 Bits 00-15 Preset 0 - Value to load or compare with counter 0

Word 3 Bits 00-15 Preset 1 - Value to load or compare with counter 1

1 2 ... 66 67 68 69 70 71 72 73 74 75 76 ... 87 88

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