Campbell CR1000 User Manual

Appendix E. FP2 Data Format
FP2 data are two-byte big-endian values. See the appendix Endianness (p. 643).
Representing bits in each byte pair as ABCDEFGH IJKLMNOP, bits are
described in table FP2 Data-Format Bit Descriptions
(p. 641).
Table 191. FP2 Data-Format Bit Descriptions
Bit Description
A Polarity, 0 = +, 1 = –
B, C Decimal locaters as defined in the table FP2 Decimal Locater Bits.
D - P
13-bit binary value, D being the MSB
(p. 249). Largest 13-bit magnitude is 8191, but
Campbell Scientific defines the largest-allowable magnitude as 7999
Decimal locaters can be viewed as a negative base-10 exponent with decimal
locations as shown in table FP2 Decimal-Locater Bits
(p. 641).
Table 192. FP2 Decimal-
Locater Bits
B C Decimal Location
0 0 XXXX.
0 1 XXX.X
1 0 XX.XX
1 1 X.XXX
641

Campbell CR1000 Specifications

General

Power Requirements	9.6 to 16 VDC
Data Logger Operating System	CRBasic
Memory	4 MB
Analog Inputs	16 single-ended or 8 differential
Analog Input Resolution	13 bits
Analog Input Range	+/-2.5V
Digital I/O	8
Pulse Counters	2
Communication Ports	RS-232
Operating Temperature	-25°C to +50°C
Pulse Channels	4