2–6 Installation
Publication 1203–5.1 –– July, 1997
Figure 2.4
PLC Switched to Program
Fault drive in program set
Off
Hold last state
On
On
Off
Send command on to the drive
Send a 0 command to
the drive
Generate a drive communications
loss fault
Figure 2.5
SCANport Cable Unplugged
Communications loss
Off
Hold last state
On
On
Off
Send the last image of the drive status to the PLC
Send a value of 0 to the
PLC for the drive status
Stop responding to the PLC.
The PLC generates a rack fault
Figure 2.6
RIO Cable Disconnected
Communications loss
Off
Hold last state
On
On
Off
Send the last command to the drive
Send zero images to
the drive.
Generate a drive communications
loss fault