**EDBOUND****EDBOUND**, `Option`

, `Lab`

, `Cname`

, `XC`

, `YC`

, `ZC`

, `Cname2`

, `COPT`

**Defines a boundary plane for sliding or cyclic symmetry.**

`Option`

Label identifying the symmetry plane option to be performed.

**ADD **
| — | Define a sliding or cyclic symmetry
plane. |

**DELE **
| — | Delete a specified sliding or
cyclic symmetry plane. |

**LIST **
| — | List defined sliding or cyclic
symmetry planes. |

`Lab`

Valid boundary options for defining a symmetry plane. A valid
label must always be specified for adding, deleting, or listing boundary planes.

**SLIDE **
| — | Sliding symmetry plane. |

**CYCL **
| — | Cyclic symmetry plane. |

`Cname`

Name of existing component [**CM**] to which
boundary symmetry is to be applied or deleted. Component must consist of nodes.
For `Option`

= LIST, a component is not required
because all defined symmetry planes are listed for the specified `Lab`

.
For `Option`

= DELE, use `Cname`

=
ALL to delete all symmetry planes currently defined for the specified `Lab`

.

`XC`

, `YC`

, `ZC`

X, Y, and Z coordinates of the head of the vector defining
normal (`Lab`

= SLIDE) or axis of rotation (`Lab`

=
CYCL). The tail of the vector is at the global origin.

`Cname2`

Name of existing nodal component [**CM**] for
which second cyclic boundary plane is to be applied. Each node in `Cname2`

component
is constrained to a corresponding node in the first component set. Therefore,
component `Cname2`

must have the same number of nodes
as the `Cname`

component. `Cname2`

is
valid only for `Lab`

= CYCL.

`COPT`

Specified constraint option for sliding plane symmetry. `COPT`

is
valid only for `Lab`

= SLIDE. Valid `COPT`

options
are:

**0 **
| — | Nodes move on normal plane (default). |

**1 **
| — | Nodes move only in vector direction. |

## Notes

For cyclic symmetry, the node numbers in component `Cname2`

must
differ from the node numbers in `Cname`

by a constant
offset value. In addition, the nodes in `Cname2`

must
have locations which, if given in cylindrical coordinates, all differ by the
same angle from the nodes in `Cname`

. The following
figure shows how you would define components for a cyclic symmetry plane.

This command is also valid in SOLUTION.

**Distributed ANSYS Restriction **This command is not supported in Distributed ANSYS.