Operating Instructions
Chapter
5
Flexi Soft Gateways
8012664/XB29/2013-06-11
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
63
Subject to change without notice
Ethernet gateways
Define how often the data shall be transmitted to the PLC:
– Select
Enable COS update
(update on change of state) if the FX0-GENT is to update
the data in the PLC immediately when changes occur in the data sets.
– Select
Enable heartbeat interval
to activate updating of the selected data sets with
the set
Heartbeat rate
in ms.
– Both options may be selected at the same time.
Define how often the data shall be read from the PLC:
– Enter a
Heartbeat rate
in ms to activate updating of the selected data sets with the
set time.
Define where the data shall be read from/written to in the EtherNet/IP network: Enter
the
IP address
and controller
Slot number
of the PLC.
The configuration is considered faulty, if the PLC IP address is zero and either
Gateway
writes to tag/file
for the Flexi Soft to Network direction and/or
Gateway reads from
tag/file
for the Network to Flexi Soft direction is activated.
The
Max. PLC update rate (ms)
defines the maximum rate (the minimum time interval)
for transferring the data sets to and from the PLC. Settings occur dependent on the PLC
processing speed. Minimum = 10 ms, maximum = 65,535 ms. The default value of
40 ms is suitable for most PLCs.
– If the value entered for the
Max. PLC update rate
is greater than the
Heartbeat rate
set for writing to or reading from the PLC, the heartbeat rate will be automatically
increased (i.e. slowed down) to this value.
– All data sets are transferred to the PLC in 16 bit integer format with the first byte
placed in the most significant, or leftmost byte of the integer.
Click
Connect
to go online and download the configuration to the Flexi Soft system.
Open the PLC programming tool.
Define the PLC tag names as previously configured in the Flexi Soft EtherNet/IP gate-
way. Fig. 29 shows an example for the definition of tag names in a PLC program written
with RSLogix:
Tag names for Allen Bradley SLC/PLC-5 PLCs must begin with a “$” (i.e. $N10:0).
Tag names for Allen Bradley MicroLogix PLCs must begin with a “#” (i.e. #N10:0).
Note
Notes
Fig. 29: Example of tag
names in a PLC program
Notes