TMT162 Commissioning
Endress+Hauser 31
•HART
®
command No. 48 (HART-Cmd #48)
Apart from the response code and the device status byte, the field transmitter calls up a detailed
diagnosis by means of Cmd #48. This diagnosis is 8 bytes long.
!
Note!
The Fieldgate FXA520 system components from Endress+Hauser allow the remote interrogation,
remote diagnosis and remote configuration of connected HART
®
devices, e.g. user is automatically
notified by e-mail or text message. The device evaluates the first 4 bytes of HART-Cmd #48 for
diagnosis purposes.
Byte Contents Meaning
1
Overall device status
0 x 01 error: EEPROM
0 x 02 error: ADC
0 x 04 error: channel 1
0 x 08 error: channel 2
0 x 10 error: comparison
measurement point
0 x 20 error: HART ASIC
0 x 40 warning: measured value range undershoot
0 x 80 warning: measured value range overshoot
2 0 x 01 warning: backup switched on
0 x 02 information: maintenance necessary
0 x 04 information: drift too small/large
0 x 08 information: corrosion at terminals
0 x 10 information: ambient temperature too high/low
0 x 20 information: output current at fixed value
0 x 40 information: no LCD connected or LCD error
0 x 80 information: upload/download active
3 0 x 01 information: device starting
0 x 02 error: supply voltage too low
4 0 x 40 global bit for a warning
0 x 80 global bit for an error
5
Status channel 1
0 x 01 warning corrosion
0 x 02 corrosion
0 x 04 sensor rupture
0 x 08 sensor short circuit
0 x 10 range undershoot
0 x 20 range overshoot
0 x 40 channel not operational
0 x 80 error A/D conversion
6 Status channel 2 See channel 1
7
Extended device status
0 x 01 maintenance necessary
0 x 02 warnings / error present
8 Device operating mode Always 0
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