User's Manual

Turbo PMAC PCI HRM
4 Introduction
Option 18: Identification Number & Real-Time Clock/Calendar Module
Option 18 provides a module at location U5 that contains an electronic identification number, and/or
a real-time clock/calendar.
• Option 18A provides an electronic identification number module.
• Option 18B provides an electronic identification number module with a real-time clock and
calendar. The year representation in the calendar is a 4-digit value.
PMAC Connectors and Indicators
J1 - Display Port (JDISP Port)
The JDISP connector allows connection of the Acc-12 or Acc-12A liquid crystal display, or of the
Acc-12C vacuum fluorescent display. Both text and variable values may be shown on these displays
through the use of the DISPLAY command, executing in either motion or PLC programs.
J2 - Control-Panel Port (JPAN Port)
The JPAN connector is a 26-pin connector with dedicated control inputs, dedicated indicator outputs,
a quadrature encoder input, and an analog input (requires PMAC Option 15). The control inputs are
low true with internal pull-up resistors. They have predefined functions unless the control-panel-
disable I-variable (I2) has been set to 1. If this is the case, they may be used as general-purpose
inputs by assigning M-variable to their corresponding memory-map locations (bits of Y address
$78800).
J3 - Thumbwheel Multiplexer Port (JTHW Port)
The Thumbwheel Multiplexer Port, or Multiplexer Port, on the JTHW 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.
J4 - Serial Port (JRS422 Port)
For serial communications, use a serial cable to connect the PC’s COM port to the PMAC’s serial
port connector. Delta Tau provides the Acc-3D cable for this purpose, which connects PMAC to a
DB-25 connector. Standard DB-9-to-DB-25 or DB-25-to-DB-9 adapters may be needed for a
particular setup.
J5 - General-Purpose Digital Inputs and Outputs (JOPTO Port)
PMAC’s JOPTO connector provides eight general-purpose digital inputs and eight general-purpose
digital outputs. Each input and each output has its own corresponding ground pin in the opposite
row. The 34-pin connector was designed for easy interface to OPTO-22 or equivalent optically
isolated I/O modules. Delta Tau’s Acc-21F is a six-foot cable for this purpose.
J6 – Expansion Port (JXIO Port)
This port is used only when connecting to optional PMAC accessory boards.
J7 / J8 - Machine Connectors (JMACH2/JMACH1 Ports)
The primary machine interface connector is JMACH1, labeled J8 on the PMAC PCI. It contains the
pins for four channels of machine I/O: analog outputs, incremental encoder inputs, and associated
input and output flags, plus power-supply connections. The next machine interface connector is
JMACH2, labeled J7 on the PMAC PCI. It is essentially identical to the JMACH1 connector for one
to four more axes. It is present only if the PMAC card has been fully populated to handle eight axes
(Option 1), because it interfaces the optional extra components.