RS232 & RS485 – interface record
80 I11 T11 192-120101 N6 - March 2004
Write object – WrObj telegram
SZ Adr L D0 D1 D2 D3 ... Dn Crc(Hi) Crc(Lo)
0xCX n Index(Hi) Index(Lo) Subindex value 0x.. 0x..
Describing an object by a value.
Positive acknowledgement – Ack-telegram
SZ L D0 D1 Crc(Hi) Crc(Lo)
0x06 1 0 0 0x.. 0x..
Answer from Compax3 if a writing process was successful, i.e. the function could
be executed and is completed in itself.
Negative acknowledgement – Nak - telegram
SZ L D0 D1 Crc(Hi) Crc(Lo)
0x07 1 F-No.(Hi) F-No.(Lo) 0x.. 0x..
Answer from Compax3 if access to the object was denied (e.g. function cannot be
executed at that point in time or object has no reading access). The error no. is
coded according to the DriveCom profile resp. the CiA Device Profile DSP 402.
Read object – RdObj - telegram
SZ Adr L D0 D1 D2 D3 D4 D5 ... Dn Crc(Hi) Crc(Lo)
0xAX n Index1(Hi) Index1(Lo) Subindex1 Index2(Hi) Index2(L
o)
Subindex2 ... ... 0x.. 0x..
Reading one or several objects
Answer – Rsp - telegram
SZ L D0 ... Dx-1 Dx ... Dy-1 Dy-D.. D ... D.. D ... Dn Crc(Hi) Crc(Lo)
0x05 n Value1 Value 2 Value 3 Value .. Value n 0x.. 0x..
Answer from Compax3 if the object can be read.
If the object has no reading access, Compax3 answers with the Nak – telegram.
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