e.bloxx Communication
MODBUS PROTOCOL
HB_EBLOXX_COM_E_V12.doc
37
Gantner Instruments Test & Measurement GmbH
Diagnostic
Description:
With this command a diagnostic telegram will be sent to the sensor module. If the telegram has been received in correct
form the module will send this telegram back unchanged (echo telegram).
Request Telegram
Response Telegram
ADR ........... ISM address (
hex
00..7F)
FNR ........... Function number (
hex
08)
SUBFCT .... Subfunction number (
hex
0000)
DATA ......... Data word (
hex
A537)
CRC ........... Check sum
CRC polynomial: u
15
+ u
13
+ 1
CRC start value:
hex
FFFF
ADR FNR SUBFCT
DATA
CRC
08
00
00
A5
37
MSB LSB
ADR FNR SUBFCT
DATA
CRC
08
00
00
A5
37
MSB LSB