Manual

A P P E N D I X B – E F M - 1 0 0 D A T A F O R M A T
43
EFM-100 Data Format
The EFM-100 Electric Field Mill transmits data sentences down the fiber optic cable at the rate of
twenty readings per second. The EFA-10 converts the optical signal to standard RS232 at 9600 baud,
8 data bits, no parity, 1 stop bit.
Electric Field Sentence
$<p><ee.ee>,<f>*<cs><cr><lf>
<p> - polarity of electric field + or -
<ee.ee> - electric field level 00.00 to 20.00
<f> - fault 0: Normal, 1: Rotor Fault
<cs> - checksum in hex 00 to FF
<cr> - carriage return
<lf> - line feed
Example:
+00.33,0*C9 Represents 0.33kV/m with no faults.
Checksum can be ignored for most applications.
Appendix
B