MULTIDOS
RS232 Interface
Application Linear Array LA 48
D177.131.2/0
17
10 Application Linear Array LA 48
Telegrams containing parameters alter a setting. If the parameter is omitted in the telegram, the actual setting is
returned. For clarification parameters are printed in
italic
.
Example: I0044 sets the interval time, I reads the actual interval time and is answered by I0044.
10.1 Basic Settings
Telegram
Description
Response
U
x
Set/Read unit of measurement. Parameter
x
: A = Ampere, S = Gy/s, M = Gy/min,
H = Gy/h
Ux
R
x
Set/Read setting of reference channel. Parameter
x
: 0 = without reference, 1 =
refer to reference chamber, 2 = refer to monitor signal
Rx
10.2 Data telegrams
The response to a data telegram consists of various fields, separated by semicolons. The fields contain pa-
rameters and text.
The format of the response to the Dcc and DA telegrams differs, depending if measuring against a reference
signal is set up or not.
10.2.1 Description of parameters
cc
Channel number, consisting of two characters. Valid values:
01 to 47 for the LA 48 channels 1 to 47
R• for the reference channel, M•for the monitor signal
V1 addresses the channel which measures the 900 volts, V4 that to measure the 400 volts
m
Measuring mode. Valid values: 0
Þ
Dose or Charge, 1
Þ
Doserate or Current
ttttt
Elapsed measurement time. Consists of five characters. Small numbers are right justified, with
leading spaces.
If the maximum measurement time of 64800s is exceeded, OL••• will be transmitted.
sss
Measurement status. Valid values: RES, STA, HLD, INT, RUN, NUL, ERR.
f
Flags for a single channel. One digit, whose bits, when converted to binary representation,
signal the following errors when the bit is set:
.0
Þ
overload in that channel
.1
Þ
math error in that channel
.0 is the least significant bit.
FL
Global flags. A two digit number, whose bits, when set to one, signal the following:
.0
Þ
any of all channels is overloaded (including reference or monitor, if used)
.1
Þ
math error in any channel (including reference or monitor, if used)
.2
Þ
MULTIDOS data acquisition error
.3
Þ
MULTIDOS HVerror
.4
Þ
900 volts error in ME 48
.5
Þ
400 volts error for reference chamber
a
Resolution of the reference (chamber or monitor, whichever is used). One digit. Valid values:
2
Þ
resolution below 1% (conforming to ** on the measuring screen)
1
Þ
resolution below 0.5% (conforming to *)
0
Þ
resolution is 0.5% or better
