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6.9 Acyclic data transmission (parameterization)
Via the acyclic parameter data transmission, parameters of the devices can be changed or selected.
Cyclical and acyclical services can be used in the network simultaneously.
Read data record "RDREC":
For reading access to a data record, the slot, index and length of the data record must be entered. At step
7 and when using the SFB 52 the Logical Address of the slot is to be entered instead of the slot. As such
the device at slot X1 is to be activated as the device at slot 1.
Error code
DE80B000
DE80B100
DE80B200
DE80B300
Write data record "WRREC":
For writing access to a data record, the slot, index, length of the data record and the new value must be
entered. At step 7 and when using the SFB 53 the Logical Address of the slot is to be entered instead of
the slot.
Error code
DF80B000
DF80B100
DF80B200
DF80B300
DF80B600
DF80B700
You will find the parameter tables (acyclic) of each of the device types in Appendix 17 (A).
The unit does not recognize the parameter (invalid index)
The length entry of the parameter is incorrect
The projected slot is not occupied
The actual unit type does not match the set unit type
The unit does not recognize the parameter (invalid index)
The length entry of the parameter is incorrect
The projected slot is not occupied
The actual unit type does not match the set unit type
The parameter cannot be changed
Invalid range of values of a parameter
Meaning
Meaning
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