Rosemount 2700 - Page 51

A-17
MODEL 2700 APPENDIX A
SERIAL COMMUNICATIONS PROTOCOL
Convert Send Measurement units to DISPLAY UNITS
measurement sent in units
conductivity S/cm
dissolved solids ppm
dual difference S/cm
dual ratio none
dual %pass, %rej %
ORP mV
pH pH
resistivity Ohm-cm
temperature deg C
Cond cm log Scale Scale
DISPLAY per per mult. base Factor Factor
UNITS TEMP. Siemens length 10 Byte Byte Byte
COMP. (dec) (hex) Rxd Expect
0 µS/m YES 1000000 100 100000000 8 8 08 5 48
656
1 µS/m Raw NO 1000000 100 100000000 8 8 08 7 48
856
2 µS/cm YES 1000000 1 1000000 6 6 05 9 48
10 54
3 µS/cm Raw NO 1000000 1 1000000 6 6 05 11 48
12 54
4 mS/m YES 1000 100 100000 5 5 05 13 48
14 53
5 mS/m Raw NO 1000 100 100000 5 5 05 15 48
16 53
6 mS/cm YES 1000 1 1000 3 3 02 17 48
18 51
7 mS/cm Raw NO 1000 1 1000 3 3 02 19 48
20 51
8S/cm YES 11100002148
22 48
9S/cm RawNO 11100002348
24 48
10 S/m YES 1 100 100 2 2 02 25 48
26 50
11 S/m Raw NO 1 100 100 2 2 02 27 48
28 50
12 Mohm-cm YES 0.000001 1 0.000001 -6 250 FA 29 70
30 65
13 Mohm-cm Raw NO 0.000001 1 0.000001 -6 250 FA 31 70
32 65
14 Mohm-m YES 0.000001 0.01 0.00000001 -8 248 F8 33 70
34 56
15 Mohm-m Raw NO 0.000001 0.01 0.00000001 -8 248 F8 35 70
36 56
16 Kohm-cm YES 0.001 1 0.001 -3 253 FD 37 70
38 68
17
Kohm-cm Raw NO 0.001 1 0.001 -3 253 FD 39 70
40 68
TABLE 4. Scale Bytes from Send Scale Factors command
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