Prosoft-technology PTQ-AFC Bedienungsanleitung PDF herunterladen (Seite 168)

Backplane Communication PTQ-AFC ♦ Modicon Quantum Platform

User Manual Liquid and Gas Flow Computer for Hydrocarbon Products

Page 168 of 259 ProSoft Technology, Inc.

June 23, 2011

9.1 Site PLC Configuration

The following blocks of registers can be associated with a Quantum memory

location. The module will automatically read and write data from/to the Quantum

processor without the need of any processor logic.

Block Description

Block Size Required

Supervisory output from PLC to AFC

52 Yes

Supervisory input from AFC to PLC

50 No (but recommended)

Wallclock

6 Yes

Modbus Gateway

129 No

Modbus Pass-Thru

130 No

Modbus Master

130 No

You can configure the Site PLC blocks through the AFC Manager (Site

Configuration / PLC Image) as shown below:

An image address of zero means that the block is not defined; it will not be

accessed and need not be allocated in the processor. Otherwise the image

address must be located within the 4x register bank defined to the processor.

Make sure that all defined blocks are assigned to separate locations and do not

overlap; do not share Modbus addresses among blocks.

In the following layouts, determine the Modbus address of a point by adding the

point’s offset to the configured image address.

The following table shows the various types of registers listed throughout the

following pages:

1 2 ... 163 164 165 166 167 168 169 170 171 172 173 174

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