Installation and Starting SpecView > Instrument Definition/Detection > Address Help

The address for Allen Bradley is specified as follows:

<PLC Address> is the address of the Allen Bradley instrument in the decimal range 0 to 254.

<Duplex Mode> is either “h” or “H” for Half-Duplex; “f” or “F” for Full-Duplex.

<Check sum type> is either “c” or “C” for Cyclic Redundancy Check (CRC); “b” or “B” for Block Check Character (BCC).

<PC Host Address> is the decimal address you want the PC to be known as – must NOT be the same as the <PLC Address>

<#<File Number Override>> is to be used for Binary (3), Counter(5), Control(6), Timer(4) and Integer(7) instruments to override the standard Allen Bradley file number – shown in brackets. The range of valid values is 9 to 999.

<;<Address Offset>> is to be used when you need more than one data type for a given instrument, for example:

Your ladder program uses 32 Inputs for a Full-Duplex CRC instrument @ address 1 and the PC @ address 99. Then you need 2 Input blocks as each only holds 16 Inputs, so you would specify 2 Inputs:

1. 1FC99

2. 1FC99;1

Your ladder program uses 33 Inputs for a Half-Duplex BCC instrument @ address 5 and the PC @ address 99. Then you need 3 Input blocks as each only holds 16 Inputs, so you would specify 3 Inputs:

1. 5HB99

2. 5HB99;1

3. 5HB99;2

Further details on the Allen Bradley are in:

Allen Bradley Appendix.pdf

which can be found on the SpecView CD in a folder called TechNotes.

However, by default this folder does not get installed, therefore it is

necessary to use Windows Explorer to view the CD to access the file.

Alternatively this file is also available for download on our website

http://www.specview.com

Click on the 'Download' link, then click the link to the FTP site.

The most recent document is in the TechNotes folder.