Steps to Follow to Configure the Variables

Steps to follow in Control Expert for each BM• CRA 312 10 module:

Step

Action

1

Buffer settings: Those parameters are predefined, no action required.

2

Activate each time stamped variable located in discrete I/O modules.

Buffer Settings in Control Expert

BM• CRA 312 10 buffer behavior settings cannot be adjusted and they are preset as follows:

  • on buffer full: The BM• CRA 312 10 module stops the recording when the events buffer is full (stop the recording).

  • on power on: New events are added to the existing events buffer if the application is the same.

    NOTE: If the application is not the same, on power on the event buffer is cleared.

  • on stop to run: New events are added to the existing events buffer if the application is the same.

Activating the Variables in Control Expert

Each input and output of discrete modules located on a Modicon X80 drop with a BM• CRA 312 10 can be time stamped.

To select a discrete module for time stamping in Control Expert, proceed as follows:

  1. Double-click the discrete module in the remote drop.

  2. Select the Device DDT tab (the implicit device DDT name attributed by default to the device is mentioned in this tab).

  3. Click Goto details command button, the Data Editor window opens.

To set a channel time stamping parameter for the discrete module chosen, proceed as follows:

  1. In the Data Editor , click the + beside the implicit device DDT name that corresponds to the discrete module you want to set in order to display the module elements.

  2. Click the + beside DIS_CH_IN or DIS_CH_OUT elements to display each channel parameter.

  3. Click the + beside the channel to be set.

  4. In the VALUE parameter line, double-click in the Time stamping cell to set the event detection edge. Selecting the edge enables the channel for time stamping.

NOTE: Do not change the Modicon X80 drop SOE_UNCERTAIN parameter time stamping condition. It is activated and set to Both Edges by default.

Variables Mapping

As the module is located in a Modicon X80 drop, mapping is provided by device DDT, the I/O time stamped module location is used (for example \2.1\0.1 means: bus 2 (RIO), drop 1, rack 0, slot 1).

An alias can also be associated with a time stamped variable in device DDT.