Communication
6.2 Cyclic Communication
Control Units CU240S
130
Operating Instructions, 07/2008 - FW 3.2, A5E00766042B AD
6.2.2
VIK/NAMUR Telegram Structure
Description
Table 6-7
VIK/NAMUR telegram structure
Telegram
Parameter
channel
Process data area (PZD)
PZD01
STW1
ZSW1
PZD 02
HSW
HIW
PZD
03
PZD
04
PZD
05
PZD
06
PZD
07
PZD
08
-
STW1
NSOLL_A
Telegramm 20
Speed control,
VIK/NAMUR
-
ZSW1
NIST_A_
GLATT
IAIST
MIST
PIST
<1>
<1> In order to comply with the PROFIdrive profile, PZD1 must be used as STW1 or ZSW1
STW1/2 (r2090/r2091)
ZSW1/2 (r0052/r0053)
NSOLL_A *) (P1070)
NIST_A *) (r0021)
IA_IST (r0027)
MIST (r0031)
PIST (r0032)
Control word 1/2
Status word 1/2
Speed setpoint A (16 bit)
Speed actual value A (16 bit)
Output current
Torque actual value
Active Power
*) NSOLL_A, NIST_A are FSOLL and FIST for SINAMICS G120
If VIK/NAMUR telegram is selected with P0922 = 20, the parameter P2038 "Selection of
actual profile" will be set to VIK/NAMUR automatically.
It is also necessary to set the ident number (GSD) via parameter P2042:
● SIMATIC Object Manager (Slave-OM)
For drives configured with SIMATIC Object Manager (Slave-OM) parameter P2042 has to
be set to 0 (default).
● VIK/NAMUR GSD (Device Data File)
For all other configurations the setting of parameter P2042 must be changed to 1
(NAMUR). That means that the VIK/NAMUR ID of the PROFIBUS Nutzerorganisation
(PNO) will be send to the PLC.
Note
If changing PROFIBUS standard telegrams to VIK/NAMUR telegram or back
(parameters: P0922, P2038 and P2042) the drive ID is changed. A power cycle is
necessary for the Control Unit CU240S to take the changed drive ID effective.
To change back from VIK/NAMUR to Standard telegrams it is necessary to set
P0922 = 999 (Free BICO connection) and then reset P2038 and P2042 to PROFIdrive
Profile. If P0922 = 999, it keeps the actual BICO connection parameters but now BICO
parameters can be changed.