2
PCI-1753 User's Manual
1.1 Introduction
The PCI-1753 is a 96-bit digital I/O card for the PCI bus, which can
be extended to 192 digital I/O channels by connecting with its
extension board, PCI-1753E. The card emulates mode 0 of the 8255
PPI chip, but the buffered circuits offer a higher driving capability
than the 8255. The 96 I/O lines are divided into twelve 8-bit I/O
ports: A0, B0, C0, A1, B1, C1, A2, B2, C2, A3, B3 and C3. Users can
configure each port as input or output via software.
Easy to Install: Plug and Play
The PCI-1753 uses a PCI controller to interface the card to the PCI
bus. The controller fully implements the PCI bus specification Rev
2.1. All bus relative configurations, such as base address and inter-
rupt assignment, are automatically controlled by software.
Dry Contact Support for Digital Input
Each digital input channel at the PCI-1753/1753E accepts either 0 ~
5 V
DC
wet contact or dry contact inputs. This dry contact capability
allows the channel to respond to changes in external circuitry (e.g.,
the closing of a switch in the external circuitry) when no voltage is
present in the external circuit.
Reset Protection Fulfills the True Require-
ment of Industrial Applications
When the system is hot reset (the power is not turned off), the PCI-
1753/1753E can either retain the last I/O port settings and outputs
value, or return to its default configuration, depending on the jumper
setting. This function protects the system from wrong operations
during unexpected system resets.
Interrupt Functions Ensure Faster System
Response
Two lines of each port C (i.e., ports C0, C1, C2 and C3) are connected
to an interrupt circuit. The “Interrupt Control Register” of the PCI-
Summary of Contents for PCI-1753
Page 1: ...PCI 1753 1753E 96 192 bit Digital I O Card User s manual ...
Page 5: ...1 General Information CHAPT ER ...
Page 11: ...Chapter 1 Gerneral Information 7 Figure 1 1 PCI 1753 1753E Block Diagram 1 6 Block Diagram ...
Page 12: ...8 PCI 1753 User s Manual ...
Page 13: ...Chapter 2 Installation 9 2 Installation C H A P T E R ...
Page 20: ...16 PCI 1753 User s Manual ...
Page 21: ...Chapter 3 Function Description 17 3 Operation C H A P T E R ...
Page 33: ...Appendix A Calibration 29 A Register Format of PCI 1753 1753E A P P E N D I X ...
Page 36: ...32 PCI 1753 User s Manual ...
Page 37: ...Appendix A Calibration 33 B Pin Assignments of Cable PCL 10268 A P P E N D I X ...