FAA-27, Technical Manual, Rev. 1.1, June 2014
Page 14 of 21
5.4 Adjustment (eCal) With PLC
All instruments are adjusted in the production to operate in its analog output range
between 0mV and 10mV load cell signal as default. For example, if the instrument is
at factory default values and programmed to operate 4
– 20mA output range, the
output will be 4mA at 0mV load cell signal and will be 20mA at 10mV load cell signal
(only for 2mV/V load cells).
Changing the FAA-27 instrument a recalibration is not required due to matching
instruments in production by Flintec.
Warning:
If the instrument is adjusted before and its factory defaults are changed,
you should load factory defaults with xFace.
FAA-27 Programming via RS232C
FAA-27 can be electronically calibrated via RS232C serial interface by commands or
by xFace software. If you want to use your own software to calibrate the FAA-27 from
your PLC or PC, you may use the commands below. The yellow colored bytes are
the data in the command and blue colored bytes are check sum in this document.
Output type setting and eCal electronic calibration should be done in sequence.
RS232C PORT SETTING :
Adjust your PC or PLC serial port as 9600, 8 None 1.
DATA STRUCTURE :
ASCII, HEX DATA and CR (Carriage Return) at the end of the command.
COMMANDS:
Descriptions
1. Analog output type setting:
a) 4 - 20mA setting:
Command:
@01100000000102000BE1
Set to 4-20 mA range
Response:
@011000000001EE
ACK
b) 0 - 20mA setting:
Command:
@011000000001020014D8
Set to 0-20 mA range
Response
:
@011000000001EE
ACK
c) 0 - 10VDC setting :
Command:
@01100000000102000AE2
Set to 0-10 VDC range
Response
:
@011000000001EE
ACK
d) 0 - 5VDC setting :
Command:
@011000000001020013D9
Set to 0-5 VDC range
Response
:
@011000000001EE
ACK
