Read Software Options Status - Honeywell UDC2800 Product Manual

Chapter 11 - Modbus RTU Function Codes 20&21
Parameter
Description
PV, SP, Output
Table 11-7: Option Status
Parameter
Description
Software Option
Status
325
Register Address Data
Hex Decimal
192 402

Read Software Options Status

Doing a Read of register address 9C4 listed in the following table will
tell you which of the available options are enabled / installed or
disabled / not installed.
Register Address Data
Hex Decimal
9C4 2500
The data field in the response message will be a decimal number
from 0 to 255. Convert the decimal number to binary as shown in the
figure below to determine which options are or are not active.
Figure 11-1: Software Option Status Information
Data Range or Enumerated
Access
Type Selection
Percentage
FP RD In Engineering Units or
Percentage
Data Range or Enumerated
Access
Type Selection
INT RD See figure below