Cyclic Communication - Siemens SINAMICS G120 CU240B-2 Operating Instructions Manual

Connection to a fieldbus
6.3 Communication via PROFIBUS
6.3.3

Cyclic communication

The PROFIdrive profile defines different telegram types. Telegrams contain the data for
cyclic communication with a defined meaning and sequence. The inverter has the telegram
types listed in the table below.
Table 6- 6 Inverter telegram types
Telegram type (p0922)
Telegram 1
Speed control
PZD 2/2
Telegram 20
Speed control, VIK/NAMUR
PZD 2/6
Telegram 350
Speed control
PZD 4/4
Telegram 352
Speed control, PCS7
PZD 6/6
Telegram 353
Speed control,
PKW 4/4 and PZD 2/2
Telegram 354
Speed control,
PKW 4/4 and PZD 6/6
Telegram 999
Free interconnection via BICO
PZD n/m (n,m = 1 ... 8)
Table 6- 7 Explanation of the abbreviations
Abbreviation Significance
STW1/2 Control word 1/2
ZSW1/2 Status word 1/2
NSOLL_A Speed setpoint
NIST_A_GLATT Smoothed speed actual value
IAIST_GLATT Smoothed actual current value
MIST_GLATT Actual torque
112
Process data (PZD) - control and status words, setpoints and actual values
PZD01 PZD02
STW1 HSW
ZSW1 HIW
STW1 NSOLL_A
ZSW1 NIST_A
STW1 NSOLL_A
ZSW1 NIST_A_
GLATT
STW1 NSOLL_A
ZSW1 NIST_A_
GLATT
STW1 NSOLL_A
ZSW1 NIST_A_
GLATT
STW1 NSOLL_A
ZSW1 NIST_A_
GLATT
STW1 NSOLL_A
ZSW1 NIST_A_
GLATT
STW1 Telegram length on receipt can be configured up to max. 8 words
ZSW1 Telegram length on transmission can be configured up to max. 8 words
PZD03 PZD04 PZD05
⇐ The inverter receives this data from the control
⇒ The inverter sends this data to the control
IAIST_ MIST_ PIST_
GLATT GLATT GLATT
M_LIM STW3
IAIST_ ZSW3
GLATT
PCS7 process data
IAIST_ MIST_ WARN_
GLATT GLATT CODE
PCS7 process data
IAIST_ MIST_ WARN_
GLATT GLATT CODE
Abbreviation Significance
PIST_GLATT Actual active power
MELD_NAMUR Control word according to the VIK-
NAMUR definition
M_LIM Torque limit value
FAULT_CODE Fault number
WARN_CODE Alarm number
Inverter with CU240B-2 and CU240E-2 Control Units
Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
PZD06 PZD PZD
07 08
MELD_
NAMUR
FAULT_
CODE
FAULT_
CODE