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APPENDIX A - Serial Programming Commands
Programming the unit requires the optional USB Programming Cable with
associated PM Remote Software and a PC running Windows XP or later
with an available USB port.
All serial commands are @ then two or more characters or words separated
by a delimiter “/”. One or two numbers follow some commands. All valid
commands respond immediately with an “OK” or data, or “ERR” if incorrect.
Default baud rate is 9600.
Communication requires the USB Programming Cable.
@PI Product Information, Shows Product name \n Firmware revision \n
@C2 Shows all settings
@D0 Sends current display value once
@D1 Sends display data continuously (at up to display update rate)
@D2 Stops sending data
@MX Sends Max reading
@MN Sends Min reading
@RE 32 Resets Max
@RE 64 Resets Min
@RE 96 Resets Max and Min
@CH_A/TYPE
Shows current type
@CH_A/TYPE = RPM Sets scale to 60 so displays in RPM
@CH_A/TYPE = FREQ Sets scale to 1 so displays in hertz
@CH_A/TYPE = SCALE Scale mode. Enter Scale factor
@CH_A/TYPE/SCALE = 30.00 This will set the SCALE factor to 30.00
@CH_A/INPUT
Shows sense of the trigger input
@CH_A/INPUT = POS (or NEG) Sets the sense of the input trigger
@CH_A/LOEND
Sets how long (in secs) with no pulses
before the tachometer shows 0.
