Lighthouse REMOTE Active Count, Operating Manual

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248083401-1 Rev 5 5-1
5
Communications
Configuring
with the
MODBUS
Protocol
The REMOTE Active Count uses Modbus Map v1.49. The product
name needs to be “VIABLE” for LMS Express to recognize it as a
RAC.
Note:
Sample time must be calculated for the specific sample volume
desired based on 1CFM flow. Sample time calculations are performed
and written to the REMOTE Active Count by LMS Express.
Samples with multiple cycles must have the individual sample time
calculated for each sample.
Configure the
RAC
Table 5-1 Configure Commands
Value Register Action
-1 40025 Saves all writable 40025 register values to the
Data Record Index.
<Location Number> 40026 Saves all writable 40026 register values to
instrument Location.
0 40029 Set Initial Delay A to register 40029.
0 40030 Set Initial Delay B to register 40030.
<Hold Time High> 40031 Set Hold Time High to register 40031.
<Hold Time Low> 40032 Set Hold Time Low to register 40032.
<Sample Time High> 40033 Set Sample Time High to register 40033.
<Sample Time Low> 40034 Set Sample Time Low to register 40034.
<Clock High> 40035 Set Clock High to register 40035.
<Clock Low> 40036 Set Clock Low to register 40036.
13 40002 Saves Clock settings to register 40002.
<Number of Cycles> 40053 Set the number of cycles to register 40053.