ThingMagic M5e-Compact User Manual
Page 183
Get Application Commands
Command Set
183
Available Statistics
The response to a Get Reader Statistics command contains the following information:
Statistics Flag Bit
Statistic
Bit 0 (0x01)
RF On Time (ms)
- Indicates the aggregate time the transmitter has been on, in milli-
seconds, since the counter was last reset.
Returned value contains N bytes (N/2 on the M5e-Compact), Where N = the number
of valid logical antennas based on the
configuration X 4 bytes for
each antenna.
Note:
Clock rolls over every 2
32
milliseconds and must be taken into account by
user application.
Bit 1 (0x02)
Noise Floor - When requested the reader will listen on each available logical
antenna and report the noise floor in units equivalent to the units returned for
RSSI value.
Returned value contains N bytes (N/2 on the M5e-Compact), Where N = the number
of valid logical antennas based on the
configuration x 1 byte for each
antenna, in ascending antenna order.
Note:
A single RF operation (read, etc.) must be performed before this operation
can return valid data.
Bit 3 (0x08)
Noise Floor with TX On - When requested the reader will transmit a CW signal on
each available logical antenna and report the noise floor detected in units equivalent
to the units returned for
RSSI value.
Returned value contains N bytes (N/2 on the M5e-Compact), Where N = the number
of valid logical antennas based on the
configuration x 1 byte for each
antenna, in ascending antenna order.
Note:
Multiple statistics can be requested by a single command by performing a binary OR (setting each
desired Statistics Flag bit to 1) on the desired flags and sending the result as the Statistics Flag byte.