Vaisala GMP251, Быстрое руководство, Страница: 8 / 14

1.3.3 Serial Line Mode Commands
Only serial mode commands related to relay operation are presented here. For other serial
mode configuration options, see the User Guides of the GMP251/252 probes.
Table 3 Smode Command
Syntax Description
smode<cr>
Shows the current start-up operating mode of the
serial line.
smode [mode]<cr>
Set serial line start-up operating mode. The new mode
is taken into use when the device is reset or powered
up. Note: only use the
RELAY2 option.
Available modes:
RELAY1 = Voltage output channel: do not use for relay
control with the GMP250 relay box.
RELAY2
= Set analog output channel 2 (current) to
relay control: use only this option with the relay box.
Example (set serial mode to "RELAY2" (channel 2 current output)):
smode RELAY2
Serial mode : RELAY2
1.3.4 Relay Configuration Commands
Table 4 Rsel Command for GMP250 Software Version 1.3.1 or Later
Syntax Description
rsel [channel]<cr>
Show current relay settings.
channel = Analog output channel
Relay Box for GMP250 Carbon Dioxide Probes Quick Guide M211920EN-C
8