Computer Interfaces - Ametek 7230 Instruction Manual

Bit Decimal value
0 1
1 2
2 4
3 8
4 16
5 32
6 64
7 128
8 256
9 512
10 1024
11 2048
12 4096
13 8192
14 16384
15 32768
Dual modes only:-
17* 131072
18* 262144
19* 524288
20* 1048576
21 2097152
The values of the selected curves at the same sample point are transferred as a group
in the order of the above table, separated by the chosen delimiter character and
terminated with the selected terminator. This continues until all the points have been
transferred.
NOTE: When transferring the Frequency curve, which is saved when bit 15 in the
CBD parameter is asserted, the instrument automatically reads the data for each
stored point in both frequency curves (i.e. the lower and upper 16 bits) and sends it
as a single data point.

6.7.11 Computer Interfaces

RS [n [n ]] Set/read RS232 interface parameters
1 2
n Baud rate (bits per second)
1
0 75
1 110
2 134.5
3 150
4 300
5 600
6 1200
The lowest five bits in n
following table:
Chapter 6, COMPUTER OPERATION
Output and range
X Output (±10000 FS)
Y Output (±10000 FS)
Magnitude Output (0 to +10000 FS)
Phase (±18000 = ±180°)
Sensitivity setting (1 to 27) + IMODE (0, 1, 2, 3 =
0, 32, 64, 128)
Noise (0 to +10000 FS)
Ratio (±10000 FS)
Log ratio (-3000 to +2000)
ADC1 (±10000 = ±10.0 V)
ADC2 (±10000 = ±10.0 V)
ADC3 (±10000 = ±10.0 V)
ADC4 (±10000 = ±10.0 V)
DAC1 (±10000 = ±10.0 V)
DAC2 (±10000 = ±10.0 V)
EVENT variable (0 to 32767)
Reference frequency (millihertz)
X Output (±10000 FS)
2
Y Output (±10000 FS)
2
Magnitude2 Output (0 to +10000 FS)
Phase Output (±18000 = ±180°)
2
Sensitivity setting (1 to 27) + IMODE
2
(0, 1, 2 = 0, 32, 64)
n
1
7 1800
8 2000
9 2400
10 4800
11 9600
12 19200
13 38400
control the other RS232 parameters according to the
2
Baud rate (bits per second)
6-31