Lenze 2130IB - Manual (Page 44)

L
42
3.1.5. DP parameter setting channel
For the DP parameter setting channel, parameter setting and diagnosis
is possible in the user data operation. This enables the access to all
DRIVECOM and Lenze specific parameters.
If the DP parameter setting channel is active
(module parameter L-C1905 = 1), this channel uses the first 8 byte of the
input and output process data. The DP parameter setting channel has
the same structure for both directions of transmission.
Service
(1 byte) Service and response control for the parameter setting channel
Bit no. Meaning
-----------------------------------------------------------------------------------
0 - 2
Service. Service to the controller. The bits are only set
by the master. The controller copies this informationi
into its response telegram.
0 = no service
1 = Read service (read data from the controller)
2 = Write service (write data to the controller)
3 reserved
4 - 5 Data length. Data length in the field Data/Error.
0 = 1 byte
1 = 2 byte
2 = 3 byte
3 = 4 byte
6 Handshake. Code that a new service must be
processed. This bit is changed with every new service.
The controller copies the bit into its response telegram.
7 Status. Status information from the controller to the
master with the service confirmation. Using this bit, the
master is informed whether the service was processed
without errors.
0 = Service processed without errors.
1 = Service not processed. An error has occurred. The
data in the field Data/Error are recognized as fault
indication.
Subindex
(1 byte) Additional address to an index. If a parameter consists of
several values (e.g. L-C38 = JOG selection; L-C39 = JOG), the
subindex can be used to directly address a value.
Example: subindex 3 addresses JOG 3
Index
(2 byte) Address of a parameter. For DRIVECOM parameters see
chapter "DRIVECOM" (page 52) and Lenze parameter see
chapter "Lenze parameters" (page 77).
The data are filed in the Motorola format:
Byte 3
High Byte
Byte 4 Low-Byte