Changing between dip and custom configuration, Configuration of digital output models – Vaisala GMW90 User Manual
Page 23
Chapter 3 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 21
Changing Between DIP and Custom Configuration
If you change the position of DIP switch 8, note the following:
When changing from DIP to Custom: The DIP settings that were used
when the power was last on are carried over to the custom settings at next
power up.
When changing from Custom to DIP: Current custom settings are
overwritten by the settings from the DIP switches at next power up.
Display layout and analog outputs are set to default settings:
- Channel 1 output parameter CO
2
, scaling 0 ... 2000 ppm.
- Channel 2 output parameter T, scaling -5 ... +55 °C.
- Channel 3 output parameter RH, scaling 0 ... 100 %RH (if humidity
measurement is present on the transmitter).
If you have a factory customized transmitter, this may lead to a situation
where the wiring label on the mounting base does not reflect the outputs
of the transmitter. To return the transmitter to its factory customized
settings, follow the instructions in section Reverting to Factory Settings
Configuration of Digital Output Models
Digital output models of the GMW90 series have the following
configuration interfaces:
- DIP switches on the component board control operating protocol,
serial line settings, and transmitter MAC address. For instructions, see
DIP Switches of Digital Output Models on page 22.
- You can set a jumper for RS-485 line termination on the component
board (120 Ω resistor). For location of the jumper, see Figure 4 on
- Other settings are configured in software. You can change most
configuration settings through the service port. For connection
instructions and serial line commands, see Chapter 4, Operation, on
page 31.
- Some configuration actions can be done using the BACnet and
Modbus protocols. See the following appendices for protocol
implementation details:
- Appendix A, BACnet Reference, on page 83.
- Appendix B, Modbus Reference, on page 96.