CN8240 & CN8260 Series Communications & Options
Digital
Communications Option
The Write Request:
The Write Request is used to modify parameter values and it has the following message format: [START CHAR][ID][ZONE] [TYPE][PARAM][DATA][CHKSUM][END CHAR]
Field Description: TYPE | This field must contain one of the following | ||
| two characters. | ||
| W | – | Value in DATA is a positive value. |
| w | – | Value in DATA is a negative value. |
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| DATA |
| A | |||||||||||
Request Message | Description | ||||||||||||||||
$Ø1Ø1WØ91Ø.123G7<CR> | Change both the RAM and EEPROM | ||||||||||||||||
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| copies of Setpoint #1 in controller #1 |
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| to the value of 10.123 |
$Ø1Ø1w1Ø1Ø.123J1<CR> | Change only the RAM copy of setpoint #1 | ||||||||||||||||
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| in controller #1 to the value of |
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| (notice the lowercase ‘w’). |
END CHAR
CHKSUM
DATA
PARAM
TYPE
ZONE
ID
START CHAR
12