Moeller S40-AM-TD, Руководство пользователя

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Data Arrays of the
Function Blocks
16
02/02 AWB27-1300-GB
tra_dat Send data array
rec_dat Receive data array
ui_ar_daten_parameter : Array content of “ui_ar_daten_parameter”: ARRAY[5..5]
ui_ar_daten_parameter : Array content of “ui_ar_daten_parameter”: ARRAY[1..5]
1) Tra_sub_max/Rec_sub_max:
No subaddress is required as the data arrays are one-
dimensional. With variable length frames, the data entered
instead of the subaddress and offset address is transferred
transparently. This can be used on the partner station to check
the Subaddress value. If, for example, the sent “Subaddress”
value is less than the set address of the partner station, this
station will send a negative acknowledgement.
2) Tra_dfl_max/Rec_dfl_max:
Both parameters have default value 220, which can be adjusted
accordingly for the application concerned. The values for
“Tra_dfl_max/Rec_dfl_max” must be the same as the number
of offset addresses of the array “tra_dat/rec_dat”!
Example: Tra_dfl_max = 220 => tra_dat = 0 to 219
3) Fixed_length:
If service 17 is executed (send/read fixed length RAM data),
parameters xxx_dfl_max must
f fixed_length.
Byte No. Parameter Range Default value
5 Fixed_length 1 to 220 20
Byte No. Parameter Range Default value
1 Tra_sub_max
1)
0 to 255 255
2 Rec_sub_max
1)
0 to 255 255
3 Tra_dfl_max
2)
1 to 220 220
4 Rec_dfl_max
2)
1 to 220 220
5 Fixed_length
3)
1 to 220 20