Manual 37443A DSLC-2 - Digital Synchronizer and Load Control
© Woodward Page 193/226
Figure 10-4: Modbus – loss of connection
Example 1: Active Power Interface Setpoint Baseload
The setpoint for active power control is a long integer to provide a wide range from 1 to 999999.9 kW. Negative
values are not allowed. This setpoint will be accepted, if the power setpoint manager of the unit passes the set-
point through.
The active power setpoint value must be written to parameter 7642.
Example:
A power value of 500 kW = 500 (dec) = 01F4 (hex) is to be transmitted.
Modbus address = 40000 + (Par. ID + 1) = 407642.
Modbus length = 2 (INTEGER 32).
The high word is to be written to the lower address and the low word is to be written to the higher address.
The following ModScan32 screenshots show how to set the parameter address 7642 in ModScan32.
Open the preset multiple registers window by selecting Setup > Extended > Preset Regs from the menu.