Rockwell-automation 1771-QB Linear Pos. Manual de usuario descargar pdf (Pagina 106)

Formatting Module Data (WRITES)

Chapter 7

727

Figure 7.36

Jog

Rate (Low and High) W

ords

50077

Low jog rate,

BCD 99.99 ips or 999.9 mmps max

Binary 327.67 ips or 3276.7 mmps max

(Must be v the high jog rate.)

1514 13 12 1110 09 08 07 06 05 0403 02 01 00

High jog rate,

BCD 99.99 ips or 999.9 mmps max

Binary 327.67 ips or 3276.7 mmps max

(Must not be higher than the greater of either of

the analog calibration constants.)

Important: The low jog rate must be lower than or equal to the high jog rate.

Both rates must be lower than the greatest of either maximum velocity, as

specified by the analog calibration constants.

Reserved (words 29, 30 and 58, 59)

Words 29, 30, 58 and 59 are reserved for future use. You must set them to zero.

You use the setpoint block to define multiple setpoint moves. If you only need

one setpoint for an axis, you can define it in the command block and not use the

setpoint block at all.

You would normally define one setpoint block for each axis, but if your

application requires that both axes use the same setpoint moves–i.e., both axes

move in parallel–you can specify both axes in the setpoint block control word

and use a single setpoint block.

Each setpoint block uses two words of overhead plus five words for each

setpoint. Because the setpoint block can define from 1 to 12 setpoint moves for

each axis, a setpoint block can be from 7 to 62 words long.

Each setpoint move defines the target axis position, velocity, acceleration, and

deceleration. Figure 7.37 shows setpoint block word assignments.

Setpoint Block

1 2 ... 101 102 103 104 105 106 107 108 109 110 111 ... 225 226

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Rockwell-automation 1771-QB Linear Pos. Manual de usuario Pagina 106