Parker Hannifin S.p.A Divisione S.B.C. user’s manual TWIN-N and SPD-N
120
The converter responds with the message:
[$7E][$20][$01][$32][$2B][$7E][$00]
Second example: reading a 2 byte parameter
Suppose we want to read the reference speed (Pr7) and that its value is 2000. Suppose also
that the converter has the serial address 1. The message to be sent is the following:
[$7E][$81][$02][$0E][$91]
The converter responds with the message:
[$7E][$21][$02][$0E][$D0][$07][$08]
Third example: writing a 1 byte parameter
Suppose we want to select operating mode 1 (Pr31). Suppose also that the
converter has the serial address 3. The message to be sent is the following:
[$7E][$A3][$01][$3E][$01][$E3]
The converter responds with the message:
[$7E][$23]
Fourth example: writing a 2 byte parameter
Suppose we want to set the rated current to 2.5 A (Pr33). Suppose also that the converter has
the serial address 3. The message to be sent is the following:
[$7E][$A3][$02][$42][$19][$00][$00]
The converter responds with the message:
[$7E][$23]
Fifth example: setting a bit to 1
Suppose we want to send the command to save the PLC program (b99.14=1). Suppose also
that the converter has the serial address 0. The message to be sent is the following:
[$7E][$C0][$02][$C7][$BF][$40][$88]
The converter responds with the message:
[$7E][$20]
Sixth example: setting a bit to 0
Suppose we want to disable the converter via software (b40.9=0). Suppose also that the
converter has the serial address 0. The message to be sent is the following:
[$7E][$C0][$02][$51][$FD][$00][$10]
The converter responds with the message:
[$7E][$20]
Seventh example: writing a PLC instruction
Suppose we want to set the first instruction of the PLC as: LD 90.4. Suppose also that the
converter has the serial address 0. The message to be sent is the following:
[$7E][$60][$02][$00][$40][$5A][$FC]
The converter responds with the message:
[$7E][$20]
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