Advantech PCIE-1753 Bedienungsanleitung PDF herunterladen (Seite 19)

11 PCIE-1753 User Manual

Chapter 3 Signal Connections

3.2.1 Jumper JP1 Restores Ports to Their Condition Prior to Reset

Jumper JP1 gives the PCIE-1753 a new and valuable function. With JP1 enabled,

the PCIE-1753 “memorizes” all port I/O settings and output values, and, in the event

of a “hot” reset, the settings and output values present at the port just prior to reset

are restored to each port following reset. This feature applies to both ports set by

software, and to ports configured as output ports via jumper. Depending on the appli-

cation, this function may allow a card to be reset without requiring a complete shut-

down of processes controlled by the card (since port values are left unchanged and

are interrupted only momentarily). Complete loss of power to the card clears chip

memory. Thus, even if JP1 is enabled, the card’s power-on state will return to the

default state or the state of an output port with voltage low output (for jumper-set

ports). When jumper JP1 is disabled, power-off or reset results in ports returning to

their default state (for software-set ports) or returning to the state of output port with

voltage low output (for jumper-set ports).

Note: On: 1, Off: 0

Table 3.1: Summary of Jumper Settings

Jumper Name Function Description

JP1

Load default after reset

Keeps the last status after reset (enabled)

Table 3.2: Board ID setting (SW1)

ID3 ID2 ID1 ID0 Board ID

11 1 10

11 1 01

11 0 12

11 0 03

10 1 14

10 1 05

10 0 16

10 0 07

01 1 18

01 1 09

01 0 110

01 0 011

00 1 112

00 1 013

00 0 114

00 0 015

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 27 28

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Advantech PCIE-1753 Bedienungsanleitung Seite 19