---
description: First column listing elements in the Routing Unit
---

# elements

If [elem\_tot](elem_tot) = 1, there can be only one element in the Routing Unit, whose ID ([id](../untitled-2/id-rout_unit.ele) in [**rout\_unit.ele**](../untitled-2)) is specified in this column. If [elem\_tot](elem_tot) > 1, this column is followed by additional columns listing the elements included in the Routing Unit, but those columns will not have a header. If there are several elements with consecutive numbers in a Routing Unit, they can be listed by specifying the first one in one column and the last one with a hyphen in front of it in the next column.
