# Tool Box for FlexSystem

The toolbox contains all valid products for the controller version.

Carrier

There are two types of carriers:

- 3-slot

- 6-slot

You can have maximum 11 carriers in your configuration. The carrier with controller is always the first carrier. All the carriers need to be dropped after the first carrier.

Controller

The controller can only be added to the first slot of the first carrier. It is not possible to add the Controller product to any other slots in the system.

Drive

The drive can be placed in all free slots except the first carrier’s first slot or slot with channel number 65. See section on channel numbering for further information.

You can have maximum 64 drives in your configuration.

Blank

The blank can be placed in all free slots except the first slot of any carrier.

Fan

The fan product can only be dropped at the top of a carrier. A 3-carrier has one fan module and a 6-carrier has two fan modules.

E-Stop

There are three different types of E-Stop:

- E-Stop ASM

- E-Stop Entry

- E-Stop ByPass

The first two E-Stops can only be dropped in the configuration’s first carrier. All other carriers can only have an E-Stop ByPass.

Tool

The Flex system can only add QST tools. The tool can only be dropped on a Drive that does not have a tool connected.