PROFIBUS DP Communication
‑153‑
Master Transmit Data PZD
AC Drive Response Data PZD
AC Drive Command
AC Drive Running Frequency
AC Drive Parameters Read in
Real Time
PZD1 PZD2 PZD3 to PZD12
Data Sent by the Master
Master Transmit Data PZD
PZD1
AC drive command word (command source set to
communication)
0: No command
01: Run in forward direction
02: Run in reverse direction
03: Jog in forward direction
04: Jog in reverse direction
05: Coast to stop
06: Decelerate to stop
07: Reset upon fault
PZD2
AC drive target frequency (frequency reference source set to
communication; value unit determined by the AC drive while
Hz is used as an example here)
The frequency reference ranges from 0 to F0‑10.
When F0‑22 is set to 1, the frequency range is 0.0 Hz to 3200.0
Hz.
When F0‑22 is set to 2, the frequency range is 0.00 Hz to
320.00 Hz.
When the reference target frequency exceeds F0‑10, the AC
drive does not respond to the frequency reference.
PZD3 to PZD12
Function parameter values (group F and group A) modified in
real time, not written into EEPROM
FE‑02 to FE‑11 correspond to PZD3 to PZD12. For the
configuration, see PZD data configuration.
After communication with the PLC is established, FE‑02 to FE‑
11 display the parameter values written into PZD3 to PZD12.
Manual settings of parameters in group FE of the AC drive are
invalid.
Data Returned by the AC Drive
AC Drive Response Data PZD
PZD1
AC drive running state
The AC drive running state is defined by bit as follows:
● Bit0: 0: Stopped; 1: Running
● Bit1: 0: Running in forward direction; 1: Running in reverse direction
● Bit2: 0: Not faulty; 1: Faulty
● Bit3: 0: Running frequency not reached; 1: Running frequency reached
PZD2
AC drive running frequency:
The current AC drive running frequency is returned as 16‑bit signed data.
When F0‑22 is set to 1, –32000 to +32000 correspond to the actual
running frequency –3200.0 Hz to +3200.0 Hz.
When F0‑22 is set to 2, –32000 to +32000 correspond to the actual
running frequency –320.00 Hz to +320.00 Hz.
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