Troubleshooting; Ex245-Spn1/Spn2 - SMC Networks EX245-SPN1 Operation Manual

12. Troubleshooting

12.1. EX245-SPN1/SPN2

No. Problem
・ LINK indicator is OFF.
1
・ ACT indicator is OFF.
2 BF indicator is ON.
3 BF indicator flashes.
Table. 12-2 Troubleshooting for the problem with display on SF LED
No. Problem
・ SF indicator is flashes at 2
1
Hz.s
・ SF indicator is flashes at 2
2
Hz.s
3 SF indicator is ON.
Table. 12-1 Troubleshooting for bus communication
Possible cause
・ The SI Unit is not connecting to
any bus.
No bus communication.
The SI Unit is physically connected
to the IO Controller but the following
problem has occurred.
・ Configuration is defective.
・ Device name is not correct.
・ The IO Controller is defective.
Possible cause
The connection to the IO controller is
OK but the following diagnostic event
occurred.
At least one valve coil has a short
circuit.
At least one connected module has
a short circuit.
The following diagnostic event
occurred.
・ The configuration data sent by
the IO Controller does not match
the actual layout.
(ex: The "EX245 PN Cu" folder is
selected (drag & drop) onto the
PROFINET line on the PN master
in the "HW Config" on the STEP 7.)
・ One of the "Valves" modules is
not set in Slot 1 or Slot 2 in your
configuration program.
・ Power supply is not present or is
below the dropout level.
・ At least one valve coil has a short
circuit and at least one connected
module has a short circuit or the
module layout has changed.
・ A connected module is defective.
・ The strength of the fiber-optic
communication is less than 2 dB.
・ The module layout has faulty.
・ Check the cable connection.
・ Check the cable.
・ Connect to the PROFINET bus
communication.
---
・ Check the configuration.
・ Check the device names.
・ Check the IO Controller.
Check the diagnostic event.
Check the solenoid valve for a short
circuit.
Check the module error.
Check the diagnostic event.
・ Check the configuration of the SI
Unit and the module layout.
(Check the configuration in the "HW
Config" on the STEP 7 and change
the configuration from "EX245 PN
Cu" to "EX245 PN FX" folder.)
・ Check the configuration of the SI
Unit. (Refer to
・ Check the power supply.
・ Check both the solenoid valve for a
short circuit and the module
error/layout.
・ Check the connected module.
・ Check the fiber-optic cable.
・ Check the module layout.
-58-
Remedy
Remedy
Section 4.1)
No.EX##-OMU0020-A