S.B.C. Elettronica S.p.A. - Engineering Division
HPDxxN – High Power User’s Manual
77
Case 2: reading a 2 byte parameter
Assume you wish to read the reference speed (Pr.7) and that the relative value is 2000; assume also
that the drive serial address is 1. The message to transmit is:
[$7E][$81][$02][$42][$C5]
The drive answers with:
[$7E][$21][$02][$42][$D0][$07][$3C]
Case 3: writing a 1 byte parameter
Assume you want to select operating mode 1 (Pr.31); assume also that the drive serial address is 3.
The message to transmit is:
[$7E][$A3][$01][$54][$01][$F9]
The drive answers with:
[$7E][$23]
Case 4: writing a 2 byte parameter
Assume you intend to set rated current at 25.3% (Pr.33); assume also that the drive serial address is
3. The message to transmit is:
[$7E][$A3][$02][$C6][$FD][$00][$68]
The drive answers with:
[$7E][$23]
Case 5: setting a bit to 1
Assume you want to enter the command to save the PLC program (b99.14=1); assume also that the
drive serial address is 0. The message to transmit is:
[$7E][$C0][$02][$93][$BF][$40][$54]
The drive answers with:
[$7E][$20]
Case 6: setting a bit to 0
Assume you want to disable the drive by software (b40.9=0); assume that drive serial address is 0.
The message to transmit is:
[$7E][$C0][$02][$5D][$FD][$00][$1C]
The drive answers with:
[$7E][$20]
Case 7: writing a PLC instruction
Assume you want to set the first PLC instruction as: LD 90.4; assume the drive serial address is 0.
The message to transmit is:
[$7E][$60][$02][$00][$40][$5A][$FC]
The drive answers with:
[$7E][$20]
Case 8: reading the first PLC instructions
Assume you want to read the first instructions of the PLC default program; assume the serial address
of the drive is 0. The message to transmit is:
[$7E][$40][$04][$00][$44]
The drive answers with the message:
[$7E][$20][$04][$00][$10][$5A][$A7][$5A][$8F]
which corresponds to the acquisition of the following instructions: LD 90.1, ORN 90.10.
