SEW-Eurodrive INTERBUS UFI11A, Руководство пользователя

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Manual – Fieldbus Interface INTERBUS UFI11A
INTERBUS Interface
"Variable data
channel with acy-
clical routing"
object This object enables you to address all the parameters of the UFI11A itself and the con-
nected inverters. The object contains a selection option for the subchannel and address
information for selecting the target unit. It contains information about the data length and
frame type and an acyclical MOVILINK parameter channel. The required service and
data value are specified here. The length is fixed at 12 bytes.
The subchannel determines to which interface the data will be directed. The setting 0
addresses the parameters of the UFI11A and the subaddress is of no importance. The
setting 1 on the subchannel addresses the standard interface (the SBus in case of the
UFI11A).
The subaddress byte allows selection of the target unit. If you want to address the pa-
rameters of a drive inverter connected to the UFI11A via SBus, you will enter the SBus
address of the respective drive inverter.
The frame type must be set to 86hex (only acyclical parameter data). The data length
for this frame type is fixed at 8 bytes.
Variable data
channel performs a
write service
If a write service is performed via the data channel (e.g. write parameter or write para-
meter volatile), the UFI11A responds with the current service confirmation when the ser-
vice has been performed. The corresponding error code is returned if the write service
is not successful.
This method offers the advantage that the write services are processed simply by sen-
ding a WRITE "MOVILINK parameter channel" once and evaluating the "write confirma-
tion." The following table shows how write services are performed via the variable data
channel.
The WRITE service coded in the parameter channel is performed and the service con-
firmation is returned directly as the response.
Octet 0 1 2 3 4 5 6 7 8 9 10 11
Meaning Subchan-
nel Subad-
dress Frame
type Data
length Admin Re-
served Index
High Index
Low Data
MSB Data Data Data
LSB
Fine structure Subchan-
nel Subad-
dress Frame
type Data
length Admin Re-
served Parameter index 4 bytes data
Coarse struc-
ture Routing information MOVILINK parameter channel acyclical
Control (master) UFI11A fieldbus interface
1. Initiate the service coded in the parameter channel by means of a WRITE to the "MOVILINK parameter
channel cyclical" object.
WRITE 8288 (parameter channel)
Service confirmation (OK/error code)