Brooks Instrument 0254 - Manual (Page 97)

C-19
Model 0254
Section C Serial Communications Protocol Installation and Operation Manual
X-SE-0254-eng
Part Number: 541B129AAG
September, 2010
C-5-2 Program a New Value
The command below is used to write a single parameter. The parameter is
identified by the index number (zz), see Sections C-5-3, C-5-4 and C-5-5
for a list of index values.
HOST SEND
AZ[.xx]P[zz]=<new value><cr> Non-network
AZ[yyyyy.xx]P[zz]=<new value><cr> Network
RESPONSE
AZ,yyyyy.xx,4,Pzz,<new value>,<sum><cr><If>
A correct received response indicates that no error was detected. It is
recommended that host software validate the responding message check-
sum, followed by the unit message address, port number, value index, and
new programmed value, to be certain that the desired value change was
programmed successfully.
Response Parameters
Parameter
Number
Value in
Example
Description
1 AZ response pre delimiter
3
xx port number
4 4 response type
7 <sum> check sum
8 <cr> carriage return character
9 <lf> line feed character
6
<new value>
value of retrieved
parameter
2
yyyyy network address of 0254
Read Out device
5
Pzz zz is the index indicating
whic h parameter is retrieved
The example below configures the setpoint for output port 8 channel 4 to
be 10.00.
Request
AZ.08P010.00<cr>
Response
AZ,00909.08,4,P01,10.00,DF<cr><if>