Siemens SINAMICS V90 Operating Instructions Manual page 228

Control functions
7.7 Communicating with the PLC
Error Meaning
value 1
17 hex Illegal format (change request for an illegal or unsupported format)
18 hex Number of values not consistent (number of values of the parameter data to not match the number of elements
in the parameter address)
19 hex Drive object does not exist (access to a drive object that does not exist)
20 hex Parameter text cannot be changed
21 hex Service is not supported (illegal or not support request ID)
6B hex A change request for a controller that has been enabled is not possible (The drive rejects the change request
because the motor is switched on. Please observe the "Can be changed" parameter attribute (U, T) in Section
"Parameter list (Page 286)".)
6C hex Unknown unit
77 hex Change request is not possible during download
81 hex Change request is not possible during download
82 hex Accepting the master control is inhibited
83 hex Desired interconnection is not possible (the connector output does not supply a float value although the con-
nector input requires a float value)
84 hex Drive does not accept a change request (drive is busy with internal calculations)
85 hex No access methods defined
87 hex Know-how protection active, access locked
C8 hex Change request below the currently valid limit (change request to a value that lies within the "absolute" limits,
but is however below the currently valid lower limit)
C9 hex Change request above the currently valid limit (example: a parameter value is too large for the drive power)
CC hex Change request not permitted (change is not permitted as the access code is not available)
Examples
Via FC 16, with one request, up to 122 registers can be written to directly one after the other.
Header
In addition to the slave address, enter the transfer type, the start address and the number of
the following registers in the header.
User data
You control the access in the user data via register 40601.
In register 40602, you define the acyclic access as well as the length of the request data.
Register 40603 contains the request reference, which is defined by the user, and the access
type reading or writing.
From register 40603 and higher, the request aligns acyclic communication via data set 47.
Register 40604 contains the number of the drive object (for V90 always 2) and the number of
parameters that are read out or written to.
Register 40605 contains the attribute (for V90 always 0x10). In the number of elements you
specify how many indices are read.
228
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 09/2016, A5E36037884-002