Lighthouse RLPC 0.1m, Operating Manual, Page: 59 / 118

Programming with MR Protocol
248083227-1 Rev 8 6-5
Universal Device Select (U)
WARNING:
Do not
use Universal Select
when more than one
counter is powered on
and connected to the
same RS485 Bus.
If the user has a single counter on the communications line and they are
not sure of the address, first send a
U command. The counter will
respond to all commands given after the U command, regardless of its
programmed Location/Address.
The U command provides a quick and easy way to check the
configuration parameters of a single device. After determining the
Location/Address of a device, it can be accessed later on a chain by
using the Device Select command sequence.
If more than one counter is chained together on a single Serial Port, the
use of the
U command will cause communication problems because all
counters will respond at the same time.
The U command is turned off by sending any Device Select address as
described above.
Command:
U
{Unit will respond to all commands}
(Press/Hold) ALT 0135
{U disabled; device at
Location/Address 8 is now selected)
0159 31 0191 63
Table 6-1 Location Addresses -- Hold ALT while typing the Device
Select Entry number on the numeric keypad
Device
Select
Entry
Location
Address
Device
Select
Entry
Location
Address