6
LevelMaster Board Jumper Settings
The LevelMaster electronics board (2018546-xxx) has jumpers that need
to be configured to complete the wiring process. The jumpers are in
place for the termination of the last board on an RS-485 bus. As this is
the case, the last board is jumpered differently than the first and
intermediate boards. If the board is the only one on the bus, it is treated
as the last board.
Use the following diagram (see Figure 7) to set the jumpers. The bank of
jumpers is labeled as JP1. Note that for the last board or only board, the
three middle jumpers are used. If the board is the first or intermediate,
jumpers 3 and 5 are used, per their factory setting.
Note:
The MasterLink cable will not operate with the 4th jumper installed.
Remove this jumper if connecting directly to the electronics board, then
replace jumper 4.
Last Board or Only Board
Pin 13 only
Pin 11 only
Pin 9 & 10 (jumper)
Pin 7 & 8 (jumper)
Pin 5 & 6 (jumper)
Pin 3 only
Pin 1 Only
First or Intermediate Board
Pin 13 only
Pin 11 only
Pin 9 & 10 (jumper)
Pin 7 only
Pin 5 & 6 (jumper)
Pin 3 only
Pin 1 only
Figure 7. RS-485 Wiring Pinouts
Software Setup
The following information details the steps necessary to set up the
software based on the type of equipment being used. The information
provided includes the setup instructions for interfacing the LevelMaster
with a laptop computer using MasterLink and set up for TotalFlow’s
PCCU32 version 4.30 and later.