Lakeshore 330 User Manual page 62

Lake Shore Model 330 Autotuning Temperature Controller User's Manual
BCUR?
Curve Number for Channel B Query.
Input:
BCUR?
Returned: XX (an integer from 00 to 31)
Remarks: Returns the currently selected sensor curve number for Channel B. Table 3-1 lists sensor
curve numbers.
BTYPE?
Channel B Input Type Query.
Input:
BTYPE?
Returned: SI, PT, AS, TC, or ER
Remarks: Returns input type for Channel B: SI = silicon diode, PT = platinum, AS = GaAlAs,
TC = thermocouple, ER = error (improper switch setting).
CUID?
Curve Identification Query.
Input:
CUID?
Returned: WW,XXXXXXXXXXXXXXXXXX,Y,ZZ,...
Remarks: Returns header lines identifying standard sensor and user curves loaded in each curve
location. Information lines for sensor curves 11 thru 31 are available only if the curves actually
exist, either as a user generated curve or as precision option curve. Data returned is defined
as follows:
W = Curve number: From 00 to 31.
X = Curve description: 18 character information line. All 18 spaces need not be used.
Y = Temp. coefficient: N = negative coefficient; P = positive coefficient.
Z = Number of points:
Example: 00, STANDARD DRC-D ,N,31,
01, STANDARD DRC-E1,N,31,
02, STANDARD CRV 10,N,31,
03, STANDARD DIN-PT,P,31,
CURV
Initiate User Curve.
Input:
CURV AA,SB0CCCCCCCCCCCCCCC,D.DDDDD,EEE.E,...Y.YYYYY,ZZZ.Z*
Returned: Nothing
Remarks: If using the IEEE-488 interface, enter an entire curve with CURV. If using the Serial Interface,
the 256 character buffer prevents loading the entire curve all at once. For Serial Interface
only, use CURV to enter the first two points and then the ECUR command to add remaining
points one at a time up to a maximum of 97 points. The entry format is as follows:
A = Curve number from 11 to 31. 00 to 10 are reserved and cannot be changed or deleted.
S = For the Model 330, the first character must be the letter "S."
B = Setpoint Limit: 0 = 325 K, 1 = 375 K, 2 = 475 K, 3 = 800 K, 4 = 999 K.
0 = For the Model 330, the third character should be the number "0."
C = Curve description. Must be at least 1 character. More than 15 characters is ignored.
D = First voltage or resistance (lowest units value).
E = First temperature.
Y = Last voltage or resistance (highest units value).
Z = Last temperature.
Input data points with the units value first in ascending order. The points must be a continuous
string with no extra spaces or terminators. The value is voltage or R
before the decimal place and five after it (0.00000). The table below gives the conversion of raw
units into the format required. The Model 330 automatically fills in leading and trailing zeros.
The second value is the temperature with three characters before the decimal point and one
after it (000.0). After all (or both for Serial) points are input, placement of an "*" terminates the
sensor curve input.
4-20
The number of points for the curve (usually 31, but can be up to 99).
with one character
equiv
Remote Operation