Rockwell-automation 1771-QB Linear Pos. Manual de usuario descargar pdf (Pagina 89)

Formatting Module Data (WRITES)

Chapter 7

710

If you program both software travel limits to zero, the module defaults to a

negative software travel limit of 0 and a maximum positive software travel limit

that is 180.0 inches or 4572 mm for one recirculation. If you select binary

format, the software travel limits are represented as 2’s-complement integers.

ATTENTION: To guard against equipment damage, we recommend

that you set software travel limits to match your axis length.

Figure 7.8

Software

ravel Limit W

ords

50061

Positive software travel limit,

BCD or binary

± 799.9 inches or ± 7999 mm max

Sign:

0 = +

1 = -

15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Negative software travel limit,

BCD or binary

± 799.9 inches or ± 7999 mm max

Sign:

0 = +

1 = -

15 14 13 12 11 10 09 08 07 06 05

03 02 01 0004

ZeroPosition and Software Travel Limit Examples

The zero position offset and software travel limits can be difficult to understand

so the following examples have been provided. Note that the examples show

zero position and software travel limits relative to the movement of the magnet

along the transducer. The actual movement of a workpiece depends on how the

transducer is mounted in a given system.

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Rockwell-automation 1771-QB Linear Pos. Manual de usuario Pagina 89