Delta Electronics AH500 Operation Manual page 360

A H 5 0 0 O p e r a t i o n M a n u a l

Monitoring area
When the PLC Link constructed is executed, the master station exchanges data with the slave stations.
The status of the data exchange between the master station and the slave stations are displayed in this
area.
The small pictures in the monitoring area indicate the status of the main station rather than the statuses of
the slave stations. The small pictures in the monitoring area are described below.

The indicators on the small picture indicate the status of the data exchange group represented by the
small picture.

The data exchange group represented by the small picture is not involved in data exchange.

The number corresponds to a serial number in the data exchange table. It represents the serial number
of the data exchange group represented by the small picture.

The number corresponds to a slave station address in the data exchange table. It represents the slave
station address which belongs to the data exchange group represented by the small picture.
Besides, the PLC Link error flags in an AH500 series CPU module are slightly different from the PLC Link
error flags in a DVP series PLC, and therefore the small picture representing an AH500 series CPU
module is different from the small picture representing a DVP series PLC. Please refer to the following
table for more information.
Master station Small picture
AH500 series
CPU module
DVP series PLC
After the users select a small picture, and right-click the small picture, they can click Write Register or
11 - 1 6
Description

If an error occurs when data in a slave station is read, the
indicator will be ON.

If an error occurs when data is written into a slave station, the
indicator will be ON.

When data exchange is performed, the indicator will be ON.

If an error occurs when data in a slave station is read, or an
error occurs when data is written into a slave station, the
indicator will be ON.

When data exchange is performed, the indicator will be ON.