Omron SYSMAC FH Series User Manual page 322

2 Methods for Connecting and Communicating with External Devices
Problem
A timeout error for tag data link oc-
curred
Slow Operation
Problem
Response and data output is slow.
Settings are not kept
Problem
Settings such as Fieldbus Data
Output calculations and comments
are not kept.
Communications between the Sensor Controller and external devi-
ces are not correctly done.
Problem
The Sensor Controller cannot com-
municate with an external device
such as a PLC properly. (Only for
Ethernet)
Missing of data Occurs
2 - 260
Cause
Communications between an exter-
nal device and the Sensor Control-
ler has been temporarily interrupt-
ed.
The Sensor Controller prioritizes
measurement processing and con-
trol processing over communication
processing.
Therefore, as the result of the com-
munication processing delayed due
to the heavy loads of the internal
processing, communications be-
tween an external device and the
Sensor Controller may be tempora-
rily interrupted and a communica-
tion error may occur.
Cause
You try to use a wrong combination
for communication protocols such
as PLC Link and EtherNet/IP.
Cause
Changed the communication set-
tings after setting the Fieldbus Data
Output
Cause
The communication settings such
as IP address have been changed
after the Device information storage
tool was performed. (The IP ad-
dresses for external devices on the
network may have overlapped the
IP addresses stored in the Sensor
Controller.)
FH/FHV Series Vision System User's manual for Communication Settings (Z342-E1)
Action
Set the timeout time for the com-
munication error longer than the
processing time of the Sensor Con-
troller or extends the measurement
interval. Set the timeout time for the
communication error set in tag data
link connections as shown below.
Packet interval (RPI value) ×
Timeout value > Measurement
processing time of the Sensor Con-
troller
Action
Use a proper combination of com-
munication protocols.
Action
Set the Fieldbus Data Output after
performing the communication set-
tings.
Action
Check that the communication set-
tings such as IP address are cor-
rect. (Tool menu - System setting
- Communication - Ethernet) Per-
form the Device information storage
tool again. The communication set-
tings in the software will be copied
in the Sensor Controller.