Rice Lake Signal Conditioning Transmitter/Indicators - Manual (Page 53)

Operation 49
At the time of writing, the setpoints, hysteresis values are saved to the RAM and will be lost upon the next
power-off; to store them permanently to the EEPROM so that they are maintained at power-on, the ‘99’
command of the Command Register must be sent.
Weight (Span) Calibration Commands (With Test Weights)
The instrument calibration can be changed via MODBUS. To carry out this procedure, the system must be
unloaded and the weight value display reset to zero with the command ‘100’ of the Command Register. Then, a
load must be placed on the system and the correct weight value must be sent to the registers 40037-40038; to save
this value, send the control ‘101’ from the Command Register. If the operation is successfully completed, the two
test weight registers are set to zero.
Analog Output Setting (Analog Models Only)
Write the weight in the registers “Weight value corresponding to the Full Scale of analog output H” (40045) and
“Weight value corresponding to the Full Scale of analog output L” (40046) or write the weight in the registers
“weight value corresponding to the ZERO of the analog output H” (40043) and “weight value corresponding to the
ZERO of the analog output L” (40044). After writing the value, send the command 99 from the Command Register
to save it to EEPROM memory.
40017 SETPOINT 1 H Only after command ‘99’ of the
COMMAND REGISTER
R/W
40018 SETPOINT 1 L R/W
40019 SETPOINT 2 H R/W
40020 SETPOINT 2 L R/W
40021 SETPOINT 3 H R/W
40022 SETPOINT 3 L R/W
40023 HYSTERESIS 1 H R/W
40024 HYSTERESIS 1 L R/W
40025 HYSTERESIS 2 H R/W
40026 HYSTERESIS 2 L R/W
40027 HYSTERESIS 3 H R/W
40028 HYSTERESIS 3 L R/W
40029 INPUTS - R
40030 OUTPUTS NO R/W
40037 Test weight for calibration H Use with command ‘101’ of the
COMMAND REGISTER
R/W
40038 Test weight for calibration L R/W
40043 Weight value corresponding to ZERO of the analog
output H Only after command ‘99’ of the
Command Register.
(Analog Models Only)
R/W
40044 Weight value corresponding to ZERO of the analog
output L R/W
40045 Weight value corresponding to Full Scale of the analog
output H R/W
40046 Weight value corresponding to Full Scale of the analog
output L R/W
REGISTER DESCRIPTION Saving to EEPROM ACCESS
Important