Honeywell UMC800 Reference Manual

Protocol Description
8 RS232 Communications Reference Manual 8/99
2.10.2 Read Scattered 32-bit Values
Below is an example of a Read Scattered 32-bit Value message exchange.
Example
Read of PV, WSP (Working Set Point), Output, and Mode from the controller assuming the function block
number for the PID block is 3 (PID3) plus Read the value of an Analog Input (assume block number is 2)
and its failed input status, six parameters total.
References
See Subsection 2.9 and Subsection 4.3 (Figure 1) for formats.
See Subsection 5.5 for Analog Input block and Subsection 5.45 for PID block dynamic parameter
references.
Request Message
Read message request from Host to UMC 800 (in hex):
10 02 01 ff 01 00 03 06 00 02 03 09 03 10 03 11 03 12 02 01 02 02 3e81 10 03
DLE
STX
Destination
Address
Source Address
Sequence Number
Read
Scattered Values
# of Values
Filler Byte
Dynamic Parameter
Block # 3
Index # 9
CRC
DLE
ETX
Block # 3
I n de x # 10
Block # 3
I n de x # 11
Block # 3
I n de x # 12
Block # 2
Index # 1
Block # 2
Index # 2
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Honeywell UMC800 Specifications

General

Brand	Honeywell
Model	UMC800
Category	Controller
Language	English