User's Manual

PMAC VME Hardware Reference Manual
40 PMAC Basic Specifications
Acc-12A: 2x40 character alphanumeric LCD display.
Acc-12C: 2x40 character alphanumeric VF display.
Acc-12C1: Acc-12C with filter, bezel, standoffs, and screws. Includes differential line receivers that
are latched and buffered. Acc-12D compatible.
Acc-12CA: 180 cm (6') 14-pin cable and mounting PCB for separately purchased display.
Acc-12D: Long distance display signal driver module (to 180 m (600') for Acc-12F). Includes 180
cm (6') 14-pin cable to PMAC. Requires Acc-12E with Option 1.
OPT-1: DIN rail mount for Acc-12D.
Acc-12E: Adapter and power driver for Acc-12F (large vacuum fluorescent displays). Includes 180
cm (6') 14-pin cable to PMAC.
OPT-1: DB-25 connector (no cable) to Acc-12D. No cable to PMAC.
OPT-2: DIN rail mount for Acc-12E.
Acc-12F: Display purchased separately.
OPT-1: 40x2 5mm high characters with two 180 cm (6') 14-pin cables to Acc-
12E, bezel, no filter (P/N IEE S03601-51-096).
OPT-2: 20x4 11mm high characters with two 180 cm (6') 14-pin cables to Acc-
12E, bezel, no filter (P/N IEE S03601-24-080).
OPT-3: IEE large screen display.
Accessory-14: I/O Expansion Board
PMAC’s Acc-14D/V provides expanded and flexible digital I/O capabilities for the controller (Acc-14D
is the PC bus form; Acc-14V is the VME bus form; there is no STD bus form). It may be configured for
a wide variety of different uses by selecting different voltage levels, sinking/sourcing, and latched/non-
latched I/O to serve many diverse applications. It is commonly used for discrete I/O and for parallel
feedback (absolute encoders, laser interferometers, and resolvers). In order to provide this flexibility, the
customer must take care in ordering a configuration.
Acc-14D: 48 digital I/O points, PC bus compatible, requires an Option 1-4.
Acc-14V: 48 digital I/O points, VME bus compatible, requires an Option 1-4.
OPT-1: 24 inputs and 24 outputs, TTL levels (0 - 5V), low true.
OPT-2: 24 inputs and 24 outputs, 0 - 24V, low true.
OPT-3: 48 inputs, TTL levels (0 - 5V), latching for parallel binary feedback.
OPT-4: Custom configuration to be specified by the user. Fill out specification sheet.
OPT-6: Dual parallel to quadrature converter. Required if PMAC is to commutate a motor using
a parallel feedback device.
OPT-7: 20cm (8") 50-Pin 3-drop connector cable. For use with Acc-14D/V when PMAC Option
2, Acc-24P, or Acc-36P is also used.
Purchasing the Proper Acc-14D/V Configuration
Acc-14D/V’s 48 bits of I/O are grouped into two ports (A and B), each with its own connector (J7 and
J15, respectively). Each port has a single high supply voltage and a single strobe source (or lack of one).
Each port contains three bytes: Port A has bytes 1, 2, and 3; Port B has bytes 4, 5, and 6. The I/O can be
specified by port (standard) or by byte (custom), as explained below.
Standard Configurations: Three standard configurations of the Acc-14D/V can be ordered. These are
specified as Options 1 to 3:
Option 1:
Port A is low-true TTL inputs (24)
Port B is low-true TTL outputs (24) (Typically this option is for use with OPTO-22.)
Option 2:
Port A is low-true 24V 100mA inputs (24)
Port B is low-true 24V 100mA outputs (24) (Typically this option is for driving I/O directly.)