AMCI ANR2, User Manual

Page: 46 / 62

C
ONFIGURATION
M
ODE
D
ATA
F
ORMAT
ADVANCED MICRO CONTROLS INC.
6
46
Write Two Point Configuration Command
In applications where the sensor is already mounted in an existing machine, you may not have access to sen-
sitivity and displacement information. In these cases, use the following command to set the Excitation Volt-
age and Excitation Frequency parameters only. When configuring the ANR2, use this command or the
Write
Configuration Data Command , which is described on page 44. Do not attempt to use both to configure the
ANR2.
If you use this command, you must use the Two Point Linear method while in Alignment
Mode. By using this method, the ANR2 will calculate the required input amplifier gains to
work with your sensor.
Figure 6.5 Command Format: Write Two Point Configuration
ANR2 Response
The ANR2 responds to a Write Two Point Configuration command by setting the Acknowledge Bit in the
Module Status word as well as the appropriate error code in bits 03 through 00 of that word. If the command
is accepted without error, the four error bits will equal zero. See
Module Status Word Format starting on
page 38 for a full description of the response bits.
At this point, you must reset the Transmit Bit (Output Word 0, bit 15), before the ANR2 will accept another
command. The easiest way to do this is to write a value of zero into the Command Word. The ANR2 will
respond by resetting the
Acknowledge Bit .
If there is an error response from the ANR2, correct your data and send another Write Configuration Data
command to the unit.
Save to Flash and Exit Command
Configuration parameter changes are not accepted until you exit Configuration Mode. They are lost if you do
not store the parameters in flash memory when you exit the mode. If the ANR2 experiences a hardware reset
or power loss while in Configuration Mode, the parameter changes are also lost. If you wish to store the con-
figuration data you just wrote to the ANR2, then you must exit Configuration Mode with this command.
Figure 6.6 Save and Exit Command: Network Output Data
Word Configuration Data Range
0 Command Word 16#A002
1 Configuration Word See page 44
2 Excitation Voltage 800 to 12,000 (0.8 to 12 Vrms)
3 Excitation Frequency 400 to 10,000 (Hz)
4-9 Not Used Set to 16#0000
ANR2
Word
Value Description
0 16#800E
Command Word to exit Configuration Mode and
save parameters to flash memory.
1 – 9 16#0000 Not Used