SMA Solar Technology AG 6 Connection
Installation Manual ClusterController-IA-en-10 35
6.8 Setting Up a Modbus Data Connection
Additional required accessories (not included in scope of delivery):
☐ Up to two Modbus clients
Requirements:
☐ The Cluster Controller and the Modbus client must be located on the same local area network
(LAN) (for information on connecting the Cluster Controller to the local area network (LAN), see
Section 6.7).
☐ The commissioning of the Cluster Controller must be completed.
Perform the setup of the Modbus data connection via the user interface of the Cluster Controller (see
the Cluster Controller user manual) and the Modbus client (see the manufacturer manual). You can
find further information on possible Modbus settings on the Cluster Controller in the technical
description "SMA CLUSTER CONTROLLER Modbus
®
Interface".
6.9 Connecting USB Data Carriers to the Cluster Controller
In order to save plant data or perform an update, you can connect up to two USB data carriers to the
Cluster Controller (for information on updates, see the Cluster Controller user manual).
Additional required accessories (not included in scope of delivery):
☐ Up to two USB data carriers, e.g. two USB sticks (see Section10 "Accessories", page81)
If you use a USB data carrier other than that provided by SMA Solar Technology AG as an
accessory, the USB data carrier must correspond to the requirements stated below.
Requirements for USB data carriers:
☐ Supported file systems: FAT 16 or FAT 32
Period of Archiving
Depending on the available storage capacity of the USB data carrier and your plant's configuration,
the following, approximate periods of archiving for the plant data are possible:
Not possible to use USB Ethernet hubs
The Cluster Controller does not support any USB Ethernet hubs. You must connect the USB data
carrier directly to the desired USB terminal on the Cluster Controller.
Number of connected
inverters
Approximate period of archiving
4 GB memory capacity 8 GB memory capacity
5 10 years 20 years
10 5 years 10 years
25 2 years 4 years
50 1 year 2 years
75 9 months 18 months