Rockwell Automation 1395 Digital Reference Adapter Board - Manual (Page 5)

Chapter 1
Introduction
1-2
S Five Discrete Outputs – These are 24 VDC outputs, and can be
connected to any source parameter such as the logic status word. All five
outputs are LED indicated for high input level visibility.
S Two Analog Inputs – Both inputs have special digitally programmable
analog offset adjustments and digitally controlled variable analog gain
adjustments prior to being multiplexed into the analog to digital
converter. The inputs are configurable to represent any of the 1395
signal inputs or the input of another Adapter Board. These inputs also
have digitally programmable digital gain and digital offset which
provides maximum interface flexibility.
S Two Analog Outputs – Configurable to represent any of the 1395 signal
outputs or the output of another Adapter Board. Programmable Gain and
Offset provides interface flexibility.
S DC Power Supply – A +/– 10 VDC Power Supply is provided to power
potentiometers connected to the analog inputs.
S LED Indicators – There are 19 green LED indicators on the board.
Fifteen are for digital I/O; one indicates that the external 24 VDC supply
is working; two are for the internal +/– 12 VDC analog supplies; and one
indicates that the microprocessor is working.
Adapter Specifications
A listing of board specifications and features is provided here. Any
specifications pertaining directly to procedures detailed in this manual, will
be stated where necessary in the manual.
Digital Reference Input – Current source and sink input for high common
mode noise immunity. Nominal 5 VDC or 12 VDC interface (internal
hardware configurable), +/– 10 mA Nominal current source/sink
requirements.
Encoder for Digital Reference Input: Incremental, 5VDC or 12VDC,
500mA, isolated with differential transmitter, 102.5 Khz max., Quadrature
905 +/– 275 @ 255C, Duty Cycle: 50% +10%.
Digital Inputs – 24 VDC Nominal; 18 VDC Minimum, 28 VDC
Maximum; 10 mA Nominal.
Digital Outputs – 24 VDC Nominal; Current Sourcing Type Driver; Diode
Clamped for Inductive Load; 18 VDC Minimum, 28 VDC Maximum;
1.5 VDC Saturation, 100 mA Maximum load.
Analog Inputs – 0 to (+/–) 10 VDC, Differential Input Impedance –
Differential > 1M ohm; 20K ohms (Single ended to analog common).
Analog Outputs – (+/–) 10 VDC, 2.5 mA Maximum Output
Impedance – 200 ohms.
Power Supply – + 10 VDC, 4 mA Maximum, – 10 VDC, 4mA Maximum.
Firmware Version – 1.xx