Vaisala HMDW110 Kurzanleitung Seite 13

Connecting to Service Port
Before connecting the transmitter to a PC:
• If the terminal block for terminals 5 ... 8 is wired, pull it out. This disconnects
the transmitter from supply voltage and prevents possible equipment damage
that may be caused by ground loops. The locations of the terminal blocks and
the service port are shown in
• If the other terminal block is wired (terminals 1 ... 4), pull it out also. This
prevents the communication between the transmitter and the RDP100 remote
display panel or Modbus (RS-485) host from interfering with your connection.
The service port is intended for a temporary connection to the transmitter. You can use it for
configuration, calibration, and troubleshooting using a computer with Windows operating
system. Use Vaisala Insight software to connect to the transmitter. You also need a Vaisala USB
cable for computer connection (order code 219690).
The RS-485 line of the service port is shared with the connection to RS-485 Modbus output/
output to RDP100 remote display panel; the M8 service port connector is just an additional
connector for easier access.
Download Insight software at www.vaisala.com/insight.
For more information and examples of using Vaisala Insight software and serial
commands, see HMDW110 Series User Guide (M211726EN) available at
www.vaisala.com/hmdw110.
Component Board (page 12).
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