Multi Loop Controller
16
Serial number Details Size Ex.
0 Frame head character None -
1 Device number 8 bit 01 h
2 Function code (06) 8 bit 06 h
3 Record start register (high) 8 bit 75 h
4 Record start register (low)
8 bit 36 h
5 Recorded data (high) 8 bit 00 h
6 Recorded data (low) 8 bit 05 h
7 Frame confirmation CRC (low) 8 bit XX h
8 Frame confirmation CRC (high) 8 bit XX h
9 Frame terminating character None -
Serial number Details Size Ex.
0 Frame head character None -
1 Device number 8 bit 01 h
2 Function code (08) 8 bit 08 h
3 Diagnosis code (high) 8 bit 00 h
4 Diagnosis code (low) 8 bit 01 h
5 Transmission data (high) 8 bit 12 h
6 Transmission data (high) 8 bit 34 h
7 Frame confirmation CRC (low) 8 bit XX h
8 Frame confirmation CRC (high) 8 bit XX h
9 Frame terminating character None ...
Serial number Details Size Ex.
0 Frame head character None -
1 Device number 8 bit 01 h
2 Function code (06) 8 bit 06 h
3 Record start register (high) 8 bit dd h
4 Record start register (low) 8 bit dd h
5 Recorded data (high) 8 bit dd h
6 Recorded data (low) 8 bit dd h
7 Frame confirmation CRC (low) 8 bit xx h
8 Frame confirmation CRC (high) 8 bit xx h
9 Frame terminating character None -
● Function code 06 (WRITE SINGLE REGISTER)
● Function code 08 (LOOP-BACK TEST)
<Transmission frame>
<Transmission frame>
With function code 06, details of one certain register can be recorded.
With function code 08, self diagnosis test can be performed.
<Reception frame>