Measurement-computing CIO-DIO96 Bedienungsanleitung PDF herunterladen (Seite 15)

CIO-DIO96 User's Guide Functional Details

To pull-up lines, orient the SIP with the common pin (dot) toward the HI end; to pull-down, install the resistor

with the common pin in the

LO hole.

When installing pull-up and pull-down resistor SIP packs, we recommend using 2.2K, eight-resistor Single

Inline Packages (MCC part number SP-K2.29C). Use a different value only if necessary.

Unconnected inputs float

Unconnected inputs typically float high, but not reliably. If you are using a CIO-DIO48H for input and have

unconnected inputs, ignore the data from those lines. You do not have to terminate input lines. Unconnected

lines will not affect the performance of connected lines. Mask out any unconnected bits in software.

Digital I/O Isolation

To provide external signal conditioning and isolation, you can connect the CIO-DIO96 to a CIO-ERB24 or

SSR-RACK24. The CIO-ERB24 provides 24 Form C electromechanical relays. The SSR-RACK24 is a

mounting rack for 24 solid-state relays.

The CIO-DIO96 provides digital I/O in groups of 48-bits. Many relay and solid-state relay (SSR) racks provide

only 24-bits of digital I/O. You can configure the CIO-ERB24 relay output board and SSR-RACK24 I/O

module rack in a daisy chain configuration to use all of the digital I/O bits provided by the CIO-DIO96 board.

An example of this configuration scheme is shown below.

CIO-ERB24

SSR-Rack24

OUT

CIO-ERB24

SSR-Rack24

OUT

CIO-ERB24

SSR-Rack24

OUT

CIO-ERB24

SSR-Rack24

OUT

CIO-DIO96

P1P2

Figure 7. CIO-DIO96 to CIO-ERB24 or SSR-RACK24 daisy chain

The 24 digital I/O bits on pins 25 to 48 (base address +0 through +2) control the first relay board. The

24 digital I/O bits on pins 1 to 24 control the second relay/SSR board on the daisy chain.

Use the C50FF-x cable for interconnections. You can also use SSR-RACK48 or the CIO-ERB48 series relay

boards.

1 2 ... 10 11 12 13 14 15 16 17 18 19 20

Keine Kommentare

Measurement-computing CIO-DIO96 Bedienungsanleitung Seite 15