Write Digital Parameters; Table 4-10 Write Request Format For Digital I.d. Codes - Honeywell UDC2300 Product Manual

4.6

Write Digital Parameters

Introduction
Request format
"Busy" response
50 RS422/485 ASCII Communications Option Product Manual
The digital identifying codes are codes 128 through 225. The Write
request and response formats are shown in Tables 4-10, 4-11, 4-12, and 4-
13.
Table 4-10 lists the Write request format, with or without checksum, for
digital I.D. codes 128 through 255.
Where:
AA = Station Address
X = UDC State and Mode (Hex – see "Message Exchange")
MMM = Identifying Code for Digital Parameter (128 to 255)
DDD = Digital Value (always three characters)
CS = Checksum Value (two digit hex – see "Checksum")
CR = Carriage Return
LF = Line Feed
Table 4-10 Write Request Format for Digital I.D. Codes
Format Type
With Checksum AA, 4204, X5, MMM, DDD, CS CR LF
Without Checksum AA, 0204, X5, MMM, DDD, CR LF
If the controller did not process the information, the controller will return
a four-digit status code, indicating an error in the third and fourth digit.
See "Status Codes."
Table 4-11 lists the busy responses that can be received with or without
checksum, after a write request that indicates a good write:
Where:
M = Mode (Hex - see "Message Exchange")
A = Alarm Data (Hex – see "Message Exchange")
CS = Checksum Value (2 digit hex – see "Checksum")
CR = Carriage Return
LF = Line Feed
Format
10/00