SMA Solar Technology AG / SMA Solar Technology America LLC
3 Inverter Manager
Installation Manual
IMVIOBOX-IA-xx-11
5
3.3.4 Connecting the I/O Box and
Weather Station (Optional)
Pin assignment of the serial interface (RS485) at the Inverter
Manager:
The I/O Box must be connected to port 2 of the Inverter
Manager. Termination for the RS485 interface is not
necessary.
Interfaces and Data of the Weather Station
Only one weather station can be connected to each Inverter
Manager. The weather station must be connected to port 1
of the Inverter Manager. A maximum of two temperature
sensors are supported. The meteorological data is provided
depending on the firmware version via the following
interfaces:
The following data of the weather station are provided by
the Inverter Manager with firmware version 1.45/1.50:
The following data of the weather station are provided by
the Inverter Manager with firmware version 1.60:
5
---
TRD(2)-
6
ERx-
TRD(1)-
7
---
TRD(3)+
8
---
TRD(3)-
Do not connect during operation
Do not connect the I/O Box or the weather station to
the Inverter Manager during operation. Errors might
occur that cannot be detected immediately.
• Disconnect the Inverter Manager from voltage
sources.
Pin
Assignment
1
---
2
---
3
DataB(+)
4
DataA(-)
5
GND
6
---
7
---
8
---
Pin
Assignment for
10/100 Mbps
Assignment for
1000 Mbps
3
2
1
4
5
9
8
7
6
Firmware
Baud rate
Interfaces
1.45/1.50
9600
• Sunny Portal
• LCS tool
• FTP Push
from 1.60
9600, 19200,
57600, 115200
• Sunny Portal
• LCS tool
• SunSpec
Modbus TCP
• FTP Push
Meteorological
data
SunSpec
Modbus
TCP
LCS tool /
FTP Push
Sunny
Portal
Ambient
temperature and
PV temperature
no
yes
yes
Wind speed and
wind direction
no
no
no
Horizontal
irradiation
no
no
no
Inclined
irradiation
no
yes
yes
Meteorological
data
SunSpec
Modbus
TCP
LCS tool /
FTP Push
Sunny
Portal
Ambient
temperature and
PV temperature
yes
yes
yes
Wind direction
and wind speed
yes
yes
yes
Horizontal
irradiation
yes
yes
If inclined
irradiation
is not
available
Inclined
irradiation
no
yes
yes