Rockwell-automation T8013 Trusted SOE and Process Historian Package Manual de usuario descargar pdf (Pagina 25)

Trusted

SOE and Process Historian Package T8013

Issue 16 April 2010 PD-T8013 25

4.9. Assigning variables for PH

Process Historian deals with analogue tags only and is intended to compliment SOE. Tags must have

the suffix ‘_PH’ at the end of the tagname and must be connected to a prochist board. A Modbus

address is not necessary.

4.9.1. PH Connection

To configure a tag for connection to Process Historian it should be configured as an output. Figure 19

shows a tag created to connect to a prochist board. The tag may be a real or integer. There is no need

to enter extended attributes. The tagname must end with _PH.

Figure 19 Analogue Output PH Tag

A prochist board must be declared within the IEC1131 TOOLSET I/O connection.

Double click on a free number in the I/O Connection. Select boards, find prochist and select OK.

This will enter a prochist board in the I/O Connection table as shown in Figure 10 above.

Figure 20 Entering a prochist Board

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Rockwell-automation T8013 Trusted SOE and Process Historian Package Manual de usuario Pagina 25