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IMPULSE®•G+/VG+ Series 4 Profinet Installation Manual - August 2014
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7. PROFINET Messaging
PROFINET Overview
This section describes the communication profile used between the PROFINET I/O network and the
option.
The option supports the PROFIdrive profile. Users can select between the control and status words
according to the PROFIdrive profile or use the Magnetek-specific control and status words.
PROFIdrive Communication Profile
The Control Word and the Status Word
The contents of the Control Word and the Status Word are detailed in Table 8: Control Word for
PROFIdrive Communication Profile and Table 9: Status Word for the PROFIdrive Communication
Profile, respectively. The drive states are presented in the PROFIdrive State Machine (Figure 11).
Frequency Reference
The Frequency Reference is a 16-bit word containing a sign bit and a 15-bit integer. A negative
reference (indicating reverse direction of rotation) is formed by calculating the two's complement
from the corresponding positive reference. The reference value is the desired output frequency.
Output Frequency
Output Frequency is a 16-bit word containing the current output frequency (U01-02) of the drive.
Table 8: Control Word for PROFIdrive Communication Profile
Bit
Name
Value
Proceed to STATE/Description
0
ON
1
Proceed to READY TO OPERATE.
OFF1
0
Emergency OFF. Proceed to OFF1 ACTIVE; proceed
further to READY TO SWTICH ON unless other
interlocks (OFF2, OFF3) are active
1
OFF2
1
Continue operation (OFF2 inactive).
0
Emergency OFF. Proceed to OFF2 ACTIVE; proceed
further to SWITCH-ON INHIBIT.
2
OFF3
1
Continue operation (OFF3 inactive).
0
Emergency stop. Proceed to OFF3 ACTIVE; proceed
further to SWITCH-ON INHIBIT.
3
OPERATION_
ENABLE
1
Proceed to ENABLE OPERATION.
0
Inhibit operation. Proceed to OPERATION INHIBIT.
4
RAMP_OUT_ZERO
1
Normal operation. Proceed to RAMP FUNCTION
GENERATOR: ENABLE OUTPUT.
0
Stop according to selected stop type.
5
RAMP_HOLD
1
Normal operation.
0
Proceed to RAMP FUNCTION GENERATOR:
ENABLE ACCELERATOR. Halt ramping (Ramp
Function Generator output held).