Standard OsTech Commands

Laser commands (L)

command	type	minimum	maximum	default	unit	description
L	bool	0	1	0		laser stop/run
LTM	float	-20	60	35		Laser temperature maximum
LG	bool	0	1	0		gate option

Laser current commands (LC)

command	type	minimum	maximum	default	unit	description
LCL	float	0			mA	current limit
LCLM	float	0			mA	error, when this current is exceeded on average
LCT	float	0		0	mA	current target
LCA	float				mA	actual current
LCB	float	0		0	mA	bias current

Laser voltage commands (LV)

command	type	minimum	maximum	default	unit	description
LVA	float				V	actual laser voltage
LVC	float	1,2	6	3	V	compliance voltage

Laser photo current commands (LPC)

command	type	minimum	maximum	default	unit	description
LPCA	float				µA	actual laser photo current

Laser modulation commands (LM)

command	type	minimum	maximum	default	unit	description
LMDI	bool	S	R	S		interne digital modulation
LMDX	bool	S	R	S		externe digital modulation
LMAX	bool	S	R	S		externe analog modulation
LMW	float	1	> 48 h	1000	µs	pulse width
LMP	float	1	> 48 h	2000	µs	pulse period
LMDIC	word	0	65534	0		number of pulses
LMDXN	bool	R	S	S		negate modulation input

Other laser commands

command	type	minimum	maximum	default	unit	description
LAS	word	0				laser status
LI	word	0				bitmask for laser-on errors
LNSL	word	0		all sensors		bitmask, which sensors must be OK for the laser to turn on
LNSLS	word					Bit(s) in LNSL-bitmask set
LNSLC	word					Bit(s) in LNSL-bitmask clear
LNSM	word	0		1		bitmask, which sensors must be cooler than LTM for the laser to turn on
LNSMS	word					Bit(s) in LNSM-bitmask set
LNSMC	word					Bit(s) in LNSM-bitmask clear
LNTR	word	0		0		bitmask, thich TECs must be on for the laser to turn on
LNTRS	word					Bit(s) in LNTR-bitmask set
LNTRC	word					Bit(s) in LNTR-bitmask clear
LZTR	float	300	34000	300	mA	laser current ramp time (refers to )

Pilot laser commands (P)

command	type	minimum	maximum	default	unit	description
PL	bool	S	R	S		pilot laser stop/run
PP	word	0	16	0		pilot laser modulation (0…16)

Temperature sensor commands (xS)

x refers to the number of the temperature sensor.

command	type	minimum	maximum	default	unit	description
xSA	float				°C	actual temperature
xSLU	float	-20	60	40	°C	upper temperature limit
xSLL	float	-20	60	0	°C	lower temperature limit
xSSCk	float			NTC B3980		sensor coefficients, k=0…3
xSSM	word	0	1	0		sensor model: 0: polynomial model 1: Steinhart-Hart equation

TEC commands (xT)

All temperature sensor commands are also available starting with xT. Here they refer to the temperature sensor assigned to TEC x.

command	type	minimum	maximum	default	unit	description
xTC	bool	S	R	S	°C	temperature controller stop/run
xTT	float	-20	60	20	°C	target temperature
xTCA	float				mA	actual current
xTCL	float				mA	current limit
xTVA	float				V	actual voltage
xTCCK	float	0	256	2		PID parameter: gain factor
xTCCN	float	0	256	60		PID parameter: reset time
xTCCV	float	0	256	1		PID parameter: rate time
xTUS	word	1	number of sensors	x		assigned temperature sensor

General commands

command	type	minimum	maximum	default	unit	description
GD	bool					set defaults
GE	word					error number
GF	float	1,2	24	5		fan voltage
GFD	float	1,2	24	5		default fan voltage
GX	bool	S	R	S		externe control run/stop
GT	float					device temperature
GVS	word					software version
GVN	word					serial number
GS	word					get status
GM	word					get mode
GMC	word					clear mode bit(s)
GMS	word					set mode bit(s)
GSP	word	0	4	0		protocol of the serial interface: 0: default 1: bus mode 2: CRC mode
GSR	word	0	2	0		baud rate of the serial interface: 0: 9600 1: 115200 2: 19200