---
title: "Parameters"
url: "https://help.maxon.net/c4d/en-us/Content/html/GVITERATE-ID_GVPORTS.html"
section_path: "XPresso > XPresso Nodes > Iterator (Group) > Iterate Operator > Parameters"
element_id: "GVITERATE"
group_id: "ID_GVPORTS"
description: "The Iteration Start and Iteration End input ports define the start value and the maximum value for the loop. The Iteration port outputs the numbers in the …"
---

## Parameters

### Iteration Start

Parameter ID: `GV_ITERATE_INPUT_LOWER` · Range: [-2147483648..2147483647]

### Iteration End

Parameter ID: `GV_ITERATE_INPUT_UPPER` · Range: [-2147483648..2147483647]

The Iteration Start and Iteration End input ports define the start value and the maximum value for the loop. The Iteration port outputs the numbers in the loop one after the other.

### On

Parameter ID: `GV_ITERATE_OPERATOR_ON`

This Node can be activated individually via the **On** input port. The Node will only be active if set to **1** (true). If the port is not referenced, the Node will be active by default.

### Previous Iterator

Parameter ID: `GV_ITERATE_LINK_INPUT`

Several Iteration Nodes can be combined via the Input port. Subordinate Iteration Nodes will be looped each time before the numeric value is increased by **1**.

### Iteration

Parameter ID: `GV_ITERATE_OUTPUT` · Range: [-2147483648..2147483647]

The current value will lie between both extremes at the iteration output port. A complete count will be made from beginning to end for each XPresso pass.

### Count

Parameter ID: `GV_ITERATE_OUTPUT_COUNT` · Range: [-2147483648..2147483647]

The Count port outputs the total number of iterations in the loop.

### Previous Iterator

Parameter ID: `GV_ITERATE_LINK_OUTPUT`

The iteration of the outer node can also be looped using the Previous Iterator output port.

> **Tip:** Tip:You cannot make XGroups repeat using Iteration nodes. You can form nested loops by connecting several Iteration nodes together via their Previous Iterator ports.