Chapter 4 _______________________________________________________________ Installation
VAISALA _______________________________________________________________________ 23
CHAPTER 4
INSTALLATION
This chapter provides you with information that is intended to help you
install the DPT146.
Transmitter Configuration Before Installation
You may wish to configure your transmitter before physically installing
it. For easy access to the serial line, use the USB service cable and a
terminal program on a PC. Instructions for using the serial line and the
serial commands are provided in Chapter 5, Operation, on page 35.
Examples of configurable settings for analog outputs:
1.
Analog output mode, output parameters, and scaling.
2.
Analog output error level.
Examples of configurable settings for RS-485 output:
1.
By default, DPT146 transmitters are configured for single
transmitter operation. Serial operation mode is
STOP
and
address is
0
.
To configure transmitters for operation on a common line, you
must give each transmitter a unique address (range 0 ... 255) and
set their serial operation mode to POLL.
2.
The default serial line settings may not be right for your RS-485
line.
3.
You may need to change the transmitter’s serial output format to
suit your needs.
