Woodward DSLC-2 - Modbus Configuration

Manual 37443A DSLC-2 - Digital Synchronizer and Load Control
© Woodward Page 189/226
Configuration
The Modbus interface can be used to read/write parameters of the DSLC-2 / MSLC-2. According to the
DSLC-2 / MSLC-2 Modbus addressing range for the configuration addresses, the range starts at 40001 and ends
at 450000. You can always access only one parameter of the system in this address range. The Modbus address
can be calculated depending on the parameter ID as illustrated below:
Parameter ID < 10000
Parameter ID >= 10000
Modbus address =
40000 + (Par. ID+1)
400000 + (Par. ID+1)
Table 10-4: Modbus - address calculation
Block reads in this address range depend on the data type of the parameter. This makes it important to set the cor-
rect length in Modbus registers which depends on the data type (UNSIGNED 8, INTEGER 16, etc.). Refer to Ta-
ble 10-5 for more information.
Device
types
Modbus
registers
UNSIGNED 8
1
UNSIGNED 16
1
INTEGER 16
1
UNSIGNED 32
2
INTEGER 32
2
LOGMAN
7
TEXT/X
X/2
Table 10-5: Modbus - data types