Omega Engineering CN8240, CN8260 manual Read Response, Write Response

Page 17

CN8240 & CN8260 Series Communications & Options

Digital

Communications Option

The Read Response:

The Read Response will be sent in response to a Read Request. Some examples:

 

Request Message

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

%Ø1Ø1RØ5Ø21.123K8<CR>

The value of the Process

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Variable is 21.123 Degrees C.

 

%Ø2Ø1R1Ø1G7<CR>

A serial transmission has occurred:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Framing Error

 

%Ø1Ø1rØ9Ø21.ØØØN8<CR>

The value of the EEPROM setpoint #1 is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-21 Degrees C (notice the lowercase ‘r’).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

END CHAR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CHKSUM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DATA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STATUS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PARAM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TYPE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ZONE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ID

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

START CHAR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The Write Response:

The Write Response will be sent in response to a Write Request. Some examples:

Request Message

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

%Ø1Ø1WØ93I1<CR>

A serial transmission error has occurred:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parity error. Write failed.

%Ø1Ø1w1ØØK2<CR>

RAM copy of setpoint #1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

modified successfully.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

END CHAR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CHKSUM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STATUS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PARAM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TYPE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ZONE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ID

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

START CHAR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Contents Series Omega.comTM Table of Contents Load Type Voltage Limit Option -AL1, -AL2 Relay, N.O. Alarm OutputOption -C2 RS-232 one-to-one Communications Option -C4 RS-485 one-to-many Communications Options -XP1, -XP2, -XP3, -XP4 Transducer Power SupplyOptions -DIC, -RSP4, -RSP5, -RSP6, -RSP7 Remote Setpoint Options -PVSV1, -PVSV2 Process OutputOption -DIC Options -RSP4, -RSP5, -RSP6, -RSP7With Remote Communications Options Wiring diagram for digital communicationsMessage Formats Omega+ ProtocolStart Char ZoneType ErrorParam Type character Message TypeEND Char ChksumRead Response from Controller Read Command to ControllerWrite Command to Controller Auxiliary Response from Controller Auxiliary Command to ControllerWrite Response from Controller Request Message Description Read RequestField Description Type Write RequestField Description Auxiliary Command RequestResponse Messages Write Response Read ResponseCN8240/CN8260 Parameter Codes Auxiliary Command ResponseRAM, Eeprom Number Name Read Write Data Field ValueDigital Communications Option PID Digital Communications Option Digital Communications Option Digital Communications Option Or RTD w/ Decimal Auxiliary CommandsRequest Data Fields Command Retrieve Display Parameter # DescriptionCommand Clear Latched Alarms Parameter # Description CN8240 & CN8260 Series Communications & Options CN8240 & CN8260 Series Communications & Options CN8240 & CN8260 Series Communications & Options Warranty / Disclaimer Temperature