Cameron LEFM 200 - Modbus Protocol Setups

IB0147 Rev. 08 LEFM 200 Modbus User Manual
Section 2 Page 6 December 2010
Setup Variable Holding Register
Variable
Definition
Address* Notes
TOTALIZER 1 DECIMAL
PRECISION
Integer 781 See Display Notes below
(page 16)
TOTALIZER 2 FIELD WIDTH Integer 782 See Display Notes below
(page 16)
TOTALIZER 2 DECIMAL
PRECISION
Integer 783 See Display Notes below
(page 16)
FLOWUNITS Integer 784 See Display Notes below
(page 16)
TOTUNITS Integer 785 See Display Notes below
(page 16)
2.5 Modbus Protocol Setups
Setup Variable
Holding Register
Variable
Definition
Address* Notes
Modbus Register
Update Period
Integer 168 Period (in seconds) that Modbus registers
are updated.
240C/220C Note:
Value typically set to 5 seconds.
Values less than 4 may adversely
affect meter operation.
SoundTrack Note:
Value typically set to 1 second.
Modbus
Communications
Protocol
Integer 787 Communication Protocol Modbus RTU = 0
(Standard) Modbus ASCII = 1
Modbus Address Integer 788 Modbus address (default as delivered is
MODADDRESS = 1)
Modbus Baud Rate Unsigned
Integer
789 Allows different BAUD rates:
Choices
9600
19200
38400
It is noted, that if DIP Switch 2 is ENABLED on startup, the following occur:
Modbus address defaults to “1”