Rockwell-automation 2711-ND3 PanelBuilder v2.60 Software User Manual Uživatelský manuál stáhnout pdf (Strana 62)

100

101

4–6 Communications Overview

Publication 2711-6.0

On a Remote I/O network, the PanelView Remote I/O terminals

appear like a Remote I/O rack. The PanelView terminal can occupy

all of or part of a single rack (128 I/O). You can assign 2 types of

addresses to objects on a Remote I/O network:

• Discrete - a single input or output bit address

• Block transfer - a series of contiguous word addresses

Data is transferred over a remote I/O link as either a:

• Read or Input = data to the PLC from the PanelView

• Write or Output = data from the PLC to the PanelView

The processor continually scans the PanelView terminal for inputs

and updates the outputs. Read and write tags must have different

discrete I/O addresses and are not linked in the terminal.

Rack Sizes and Module Groups

The PanelView I/O can occupy a

, or Full rack. Each 1/4

rack contains two module groups (32 input and 32 output bits). An

entire rack contains 8 module groups that are numbered from 0 to 7.

Rack #

PanelView I/O

Four 1/4

Rack Sizes

Eight Input/Output

Module Groups

01 23 45 67

1/41/4 1/41/4

Input

Output

16 Bits each Module Group

01 23 45 67

If a PanelView terminal does not occupy a complete I/O rack, you

can assign another PanelView or other devices to the same rack.

Parameter 1st PanelView Other Rack Device

Rack Number 1 1

Starting Module Group 0 6

Rack Size 3/4 1/4

Last Chassis No Yes

The PLC type determines the maximum rack number for the

PanelView.

emote

I/O

Communications

1 2 ... 57 58 59 60 61 62 63 64 65 66 67 ... 501 502

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