Danfoss iC7 Series Operating Manual page 24

iC7 Series Modbus
Operating Guide
b.
To map multiple registers, click the – Add Multiple Items icon.
Table 15: Holding Register Settings
Column Description
Location Refers to the register number. Registers are mapped from address 40000–4FFFF.
Reference
-
type
-
-
-
-
Reference The name of the mapped parameter, feature, or event. Value for Constant type.
Source type Data type of mapped parameter
Index Index pointer for array parameters
Length Number of bytes for string-type parameters.
Register type Data type of the mapped parameter
By default, the Customizer selects a register type that matches the data type of the selected parame-
ter.
Scaling Scales the parameter value on the Modbus interface by dividing it by the scaling value entered.
Unit Unit of the mapped parameter
Permissions Setting Read/Write permissions for each register
Watchdog
-
-
Example
Mapping parameter of the REAL 32-bit datatype results in 2 consecutive register mappings.
Table 16: Example of a Holding Register Mapping
Location Reference Type
20 Parameter
22 Parameter
24 ...
Events from the device event log can be mapped into holding registers, starting from the most recent event.
Each Event results in six consecutive register mappings.
Table 17: Example of an Event Register Mapping
Register Description
n Timestamp
n+1
24 | Danfoss A/S © 2023.09
Terminal: Mapping a terminal on an option to a register.
Parameter: Mapping a parameter to a register.
Constant: Mapping a constant value to a register.
Feature: Mapping a register to a feature, for example, Factory restore.
Event: Mapping events to registers.
Watchdog1: Process data timeout watchdog
Timeout time is configured in parameter 10.3.1.6 Process Data Timeout Time.
The Watchdog timer is triggered when writing to the mapped coil or register.
Watchdog2: Not used
Reference (parameter number)
Motor Current (9000)
Heat Sink Temperature (2950)
...
Format
Seconds/milliseconds [SS.SSS]
Hours/Minutes [HHMM]
Source Type Register Type
REAL Two Consecutive Floating point
REAL Two Consecutive Floating point
... ...
(1)
(1)
AQ456329149698en-000101 / 136R0334
Modbus Data Mapping