Chapter 4 Command Set 4-111
Chapter 4
NOTICE: An analog input module requires a maximum of 2 seconds
after it received an Set Low Alarm command to let the settings take effect
. During this interval, the module can not be addressed to perform any
other actions.
@AALO
Name Set Low Alarm Limit
Description Downloads Low alarm limit value into the addressed module.
Syntax @AALO(data)(cr)
@ is a delimiter character.
AA (range 00-FF) represents the 2-character hexadecimal
address of an analog input module.
LO
is the Set Low Limit command.
(data)
represent the value of the desired low limit setting. The
format is always engineering units.
(cr)
represents terminating character, carriage return (0Dh).
Response !AA(cr)
if the command was valid.
There is no response if the module detects a syntax error or
communication error or if the specified address does not exists.
!
delimiter character indicating a valid command was received.
AA
represents the 2-character hexadecimal address of the
responding analog input module.
(cr)
represents terminating character,
carriage return (0Dh).
Example command: @04LO-020.00(cr)
response: !04(cr)
Presume the analog input module at address 04h is configured
to accept T-type thermocouple input. The command will set the
Low alarm limit to -20
o
C.
The
module responds that the command has been received.
4011, 4011D, 4012, 4014D, 4016
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