3-25
3 Configuration Software
CJ-series PROFINET IO Controller Unit Operation Manual for NJ-series CPU Unit (W511)
3-3 PROFINET
IO C
ontroller DT
M
3
3-
3-3 C
onfig
uration
The Device Name entered must be equal to the name that was given to the IO Device in the network
Scan in the PROFINET Identification screen. If there is a mismatch the IO Controller can not estab-
lish a connection. The name entered in the Network Scan is not automatically copied to the IO
Device Setup list.
The IO Device Setup item is shown below.
Item
Description
Device No.
The Device No. is the number used by the PROFINET IO Controller DTM to
reference the IO Device within the configuration. For instance in the Diagnos-
tic screen IO Devices are represented by number.
Device Name
The Device Name is the name the PROFINET IO Controller will search for at
startup. This name must be exactly the same as the name entered in the IO
Device. Note that according to the PROFINET specification only lower case
characters, dashes and numbers are allowed.
Device Type
The Device Type is supplied by the Device DTM and can not be altered.
IP Address
The IP Address is issued by the PROFINET IO Controller to the IO Device
with the corresponding IP address. The IO Device is then reachable on the
network by this IP Address.
Update Rate (ms)
The Update Rate is the time interval in milliseconds between subsequent
Input Data and Output Data exchanges between the PROFINET IO Controller
and the IO Device. The Update Rate can be set per IO Device.
Watchdog Factor
The Watchdog Factor is a multiplication factor on the Update Rate to define
the watchdog timeout. If an update of IO Data takes longer than the Watch-
dog Time the connection is considered to be terminated. A new connection
attempt will be made by the PROFINET IO Controller.
Data Hold Factor
The Data Hold Factor is a multiplication factor on the Update Rate to define
the data hold timeout. The Data Hold Time is the time that an IO Device will
keep its Outputs set to the last known state after a successful data exchange.
If the Data Hold Time elapses, the Outputs of the IO Device will turn to a safe
state as defined by the configuration of each device. The Data Hold Factor
must be equal to or larger than the Watchdog Factor
Watchdog Time (ms)
The Watchdog Time is the multiplication of the Update Rate and the Watch-
dog Factor.
Data Hold Time (ms)
The Data Hold Time is the multiplication of the Update Rate and the Data
Hold Factor.
