USER'S GUIDE ____________________________________________________________________
98 ___________________________________________________________________ M211187EN-C
SET DATA_PORT PARITY 7E1 yes/no
RS-232 and RS-485 serial lines use the following
communication parameters: 7 data bits, even parity,
1 stop bit. Verification yes/no asked only if the
command is given via DATA PORT (default).
SET DATA_PORT PARITY 8N1 yes/no
RS-232 and RS-485 serial lines use the following
communication parameters: 8 data bits, no parity, 1
stop bit. Verification yes/no asked only if the
command is given via DATA PORT.
In addition to the user level command set, there is a second, advanced,
in-depth maintenance and service level command set. The access
command to this advanced level is LEVEL 1. The command prompt
shows the current command set level. In the advanced level, the prompt
is 1>.
Table 14 LM21 Advanced Level Commands
Message frames included in data message
transmission (default).
Message frames not included in data messages.
SET CONTAMINATION_COMPENSATION
ON
Enables measurement value compensation caused
by window contamination (default).
SET CONTAMINATION_COMPENSATION
OFF
Disables the compensation function.
Enables the monitoring and automatic operation of
the hood heater (default). The hood heaters are
turned on by the unit when the hood temperature
drops below a preset level.
Disables hood heater operation and monitoring. Set
OFF when operated in environments where hood
heaters are not needed and the sensor is only
Enables the monitoring and automatic operation of
the dew heaters (default). The dew heaters start to
warm up optical surfaces when ambient temperature
drops below a preset level.
Disables dew heaters operation and monitoring. Set
OFF when operated in environments where dew
heaters are not needed (ambient temperature does
Restores the default factory settings, verification
yes/no asked.
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