Lenze ELCAMZIxxx4SNNPSNN (LCU122) - Manual (Page 80)

PROFIsafe on board
Parameter data transfer
PROFIdrive parameter data channel (PCW)
6

80 EDSLCMX3024-SPS EN 5.0
6.4.3.1 Programming of read jobs
Step Read job
1. Define the user data range of the motor starter, i.e. define the location of the user data in the host
system.
2. Enter the address of the desired parameter in the field ”Index and subindex“ (output data).
3. Job/Service = AK
4. Job/Service = Read job
5. Check whether index and subindex correspond with the job and whether the job identification is Û 0:
z
If the criteria are fulfilled, the desired motor starter data is transferred from the field “Parameter
value” to the master.
z If these criteria are not met, the response identification is negative, i.e. high nibble of byte 1 = 7
hex
In this case the error information can be read out from the entry in the low word.
Example: Read parameter
The housing temperature (assumption: ϑ= 43° C)of the motor starter is to be read (C0061).
ƒ Job identification (high nibble in byte 1)
– Read simple parameter: “1”
ƒ Code: (low nibble in byte 1 and byte 2)
– C0061: 61 = 3D
hex
ƒ Lenze subcode (byte 3):
– Subindex = 0, as there is no subindex under code C0061.
ƒ Byte 5 ...8: Data (not contained in the request telegram)
– Data 1 to data 4 = 43° C x 10000 = 430000 = 00 06 8F B0
hex
Result:
ƒ Request telegram from master to the motor starter
Byte 1* Byte 1* +2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8
AK Code Subcode Reserved Parameter value
1
hex
03D
hex
00
hex
00
hex
00
hex
00
hex
00
hex
00
hex
0001bin 000000111101 bin 00000000bin 00000000bin 00000000bin 00000000bin 00000000bin 00000000bin
Wait for response identification with code = 03D and subcode 0
ƒ Response telegram from the motor starter to the master (for faultless execution)
Byte 1* Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8
AK Code Subcode Reserved Parameter value
2
hex
03D
hex
00
hex
00
hex
00
hex
06
hex
8F
hex
B0
hex
0010
bin 000000111101 bin 00000000
bin
00000000
bin
0000 0000
bin
0000 0110
bin
1000 1111
bin
1011 0000
bin
Tab. 6-4 Telegram exchange in the PROFIdrive parameter data channel