v. 3.0
Reference guide
Compressor Control Module CM-RC-01
3.0
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10.2.5
Modbus exception codes
Code
Name
Meaning
01
Illegal function
The function code is not valid.
02
Illegal data address
The specified register is not valid
03
Illegal data value
The value is not allowed
04
Slave device failure
Unrecoverable error in slave.
10.3
Parameters
Parameters without a register number are only accessible using the service tools LMT or BEST.
Modbus type & addr.: Modbus register address and type of register.
IR is an Input register.
HR is a Holding register.
Please observe that it is registers that are listed, NOT the index.
Name column:
Parameter name. The name in parenthesis is the LMT field name.
Possible values:
Parameter unit, scale and range for some parameters.
Default:
The default settings of the parameters.
Description:
Description of the parameter and specific settings for some parameters
marked with italics.
The parameters are subject to changes.
10.3.1
Control
– application
The group contains parameters related to control of the compressor.
Modbus
type & addr Name
Possible
values
Default
Description
IR 100 Setpoint
(Control.Setpoint)
unit %
scale 100
sint16
-
Active capacity setpoint
IR 101 Actual Value
(Status.CapacityAvg)
unit %
scale 100
sint16
-
Average capacity delivered
IR 102 Control Word
(Control.ControlWord)
unit None
scale 1
uint16
-
Active control word
IR 103 Status Word
(Control.StatusWord)
unit None
scale 1
uint16
-
Operation status word
HR 110 Serial Control Word
(Control.SerCtrlWord)
0 - expr
scale 1
uint16
expr
Control word written by serial
communication
HR 111 Serial Setpoint
(Control.SerSetpoint)
-100.00 % -
100.00 %
scale 100
sint16
0 %
Capacity setpoint written by serial
communication
