Which products are affected?
- ESP-DDS1-x (Drive PLC Developer Studio Version 1.4)
- EPL-10200 (Drive PLC Version 1.0 up to 2.2)
What happens?
If codes are read out via keypad EMZ9371BB a CCr-Trip will occur (CCr = internal fault). Error number 71 is displayed under code C0161 (current error).
When does the problem occur?
If codes which have been defined in the instance parameter manager or type parameter manager are copied from another project into the current project (menu
Project>Copy) via Drive PLC Developer Studio, code units defined by user will not be copied.
The unit is displayed correctly in the tabular form of the instance/type parameter manager. However, if the edit dialog of the code is opened (menu
Insert>Edit object) a unit is not displayed and the unit defined by the user is not included in the selection list for the units.
The current project can be compiled without faults and loaded into the control although the units of the user codes are missing. If a code with a missing unit is accessed via keypad EMZ9371BB the behaviour described above will occur.
Possible diagnostics?
A code with a missing unit can be recognised by using the keypad EMZ9371BB to 'scroll' over all user codes the after a project download.
Short-term measures/recommendations?
If codes which have been defined in the instance/type parameter manager are copied into the current project via the menu
Project>Copy the unit in each code of the edit dialog of the
instance/type parameter manager must be checked. Missing units must be re-entered if necessary.
For a final control the keypad EMZ9371BB is to be used for 'scrolling' over all user codes after the project download into the Drive PLC.
Evaluation:
If a code with a missing unit is accessed via keypad a CCr-Trip will occur. As a result, the hardware outputs of the Drive PLC will be reset to 0 and the PLC program processing will be stopped.
