Delta Tau PMAC2A-PC/104 Manual descargar pdf (Pagina 24)

PMAC2A-PC104 Hardware Manual

Machine Connections

ACC-1P Thumbwheel Multiplexer Port (J2 Port)

The Thumbwheel Multiplexer Port, or Multiplexer Port, on the J2 connector has eight input lines and

eight output lines. The output lines can be used to multiplex large numbers of inputs and outputs on the

port, and Delta Tau provides accessory boards and software structures (special M-variable definitions) to

capitalize on this feature. Up to 32 of the multiplexed I/O boards may be daisy-chained on the port, in

any combination. Either the ACC-1P or the ACC-2P boards, but not both, can use this connector as a

multiplexing port. This is selected by jumper E6 on the ACC-1P board and jumper E5 on the ACC-2P

board.

Alternatively, the inputs and outputs on this port may be used as discrete, non-multiplexed I/O. In this

case, these I/O lines can be accessed through M-variables. See the Software Setup section for details on

this.

ACC-2P Thumbwheel Multiplexer Port (JTHW Port)

The Thumbwheel Multiplexer Port, or Multiplexer Port, on the JTHW connector has sixteen lines. These

lines can be used to multiplex large numbers of inputs and outputs on the port, and Delta Tau provides

accessory boards and software structures (special M-variable definitions) to capitalize on this feature. Up

to 32 of the multiplexed I/O boards may be daisy-chained on the port, in any combination. Either the

ACC-1P or the ACC-2P boards, but not both, can use this connector as a multiplexing port. This is

selected by jumper E6 on the ACC-1P board and jumper E5 on the ACC-2P board.

Alternatively, the inputs and outputs on this port may be used as discrete, non-multiplexed I/O. In this

case, these I/O lines can be accessed through M-variables. See the Software Setup section for details on

this.

When used as non-multiplexed I/O jumpers E7 and E8 on the ACC-2P board select the I/O lines direction

of the JTHW connector. This allows configuring this port as all inputs, all outputs or half inputs and half

outputs. If E7 is removed or E8 is installed then the multiplexing feature if the JTHW port cannot be

used.

ACC-1P or ACC-2P Handwheel Port (JHW / PD Port)

This port provides an extra encoder input or a set of pulse and direction outputs. Jumpers E3 and E4 on

either the ACC-1P or ACC-2P boards select the function of this connector between encoder input or pulse

and direction outputs. The handwheel encoder input can be linked to a servomotor for manual

displacement or used by a motor as a secondary encoder for dual-feedback applications. There is no ‘C’

index channel input on the handwheel encoder port. The pulse and direction outputs can be used, for

example, to control an external laser device but not a stepper driver\motor, since this would require more

than eight axes of motion control.

Optional Analog Inputs

The optional analog-to-digital converter inputs are ordered either through Option-12 on the baseboard or

Option-2 on the axes expansion board. Each option provides two 12-bit analog inputs analog inputs with

a ±10Vdc range.

ADCIN_1

GND

JMACH1

±10 Volts analog signal

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Delta Tau PMAC2A-PC/104 Manual Pagina 24