ABB 800xA Operation - Safeguard Status Monitoring

Safeguard Status Monitoring

Section 2  Operation

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3BNP004849-600

The system errors that occur during the start-up, are displayed in the status display 

and alarms are generated.

Safeguard Status Monitoring

Status Object

Figure 1. Safeguard Status Presentation (Side A and B)

The Safeguard Status Object is an MMCX object with configured reftype = 38 in 

the Safeguard controllers. In the Control structure of Plant Explorer this object type 

is named MMCX3. 

When a Safeguard system is created in the Control Structure and an upload is 

performed, all objects are included in Extended Process Object and Local IO (as 

for AC400 controller types). 

The Safeguard Status Object (MMCX3) is located beneath each of the branches of a 

Safeguard controller (see 

Figure 2

). This is the only object that is not uploaded 

beneath the virtual Safeguard controller object. Each branch of a dual system has its 

own status object which can be viewed and displayed individually. The operator can 

obtain the status of ‘Side A’ and ‘Side B’ independently. 

The Safeguard Status object can also be added to the Functional Structure. This is 

done when a Status object presentation is used in process displays (see 

Figure 1

) 

because it is easier to find it in the Object Browser of the Graphic Builder.

A fixed display of an operator workplace can be customized to include a Safeguard 

Status object presentation or an object shortcut can be added to the application bar. 

The other presentation elements are the Faceplate and the Object display.