Honeywell UDC2800 User Manual

Parameter
Description
Register Address
Data
Type
Access
Data Range or Enumerated
Selection
Hex Decimal
Percentage
PV, SP, Output 192 402 FP RD In Engineering Units or
Percentage
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.
Table 11-7: Option Status
Parameter
Description
Register Address
Data
Type
Access
Data Range or Enumerated
Selection
Hex Decimal
Software Option
Status
9C4 2500 INT RD See figure below
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
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Chapter 11 - Modbus RTU Function Codes 20&21

Honeywell UDC2800 Specifications

General

Control Modes	PID, ON/OFF, Manual
Mounting	Panel Mount
Display	Dual 4-digit LED
Input Types	Thermocouple, RTD, mA, mV, V
Output Types	Relay
Power Supply	100-240 VAC, 50/60 Hz
Communication	RS-485 Modbus RTU
Enclosure Rating	NEMA 4X