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No.EX※※-OMW0011-B
9.9. Diagnosis
The EX245-LA1 / LB1 has a diagnostic function for each port.
The diagnostics contents are displayed by LEDs and are assigned to the input process data as Port
Status (PQI).
For details of the PQI behaviour, refer to Section 9.7
.
Table. 9-14 Diagnostics and indications
Port diagnostics
function
Details Status LED
PQI Bit No.
(Description)
L+ short circuit
detection
Pin No. 1 and 3 short circuit diagnostics Red ON
2
(PwrShort)
P24 short circuit
detection
Pin No. 2 and 5 short circuit diagnostics Red ON
2
(PwrShort)
C/Q short circuit
Pin No. 1 and 4 or 3 and 4 short circuit
diagnostics
Red ON
3
(CQShort)
Connected device
matching error
A diagnosis check to confirm the Vendor ID
and Device ID of the connected IO-Link device
matches that in the configuration.
The following 2 conditions must be satisfied in
order to carry out the diagnosis check: -
a. Pin 4 (C/Q) mode in specified port of
IO-Link module must be set to IO-Link,
and
b. The port pin 'Validation & Backup'
parameter must be set to 'Type compatible
Device V1.x'.
Green
flashing
0
(IDMismatch)
Device process
data mapping error
∗
1
A diagnosis error will occur when the port
operation mode is set to IO-Link and the port
receives exceed process data length than it is
configured for.
Green
flashing
1
(PDmapping-
Mismatch)
Device
disconnection is
detected
∗
2
When the pin function / operation mode is set
to IO-Link, device disconnection is detected.
Green
flashing
5
(DevCom)
P24 power supply
reduction
Power supply reduction of class B type Pin
No. 2 and 5 is diagnosed.
OFF -
∗1: When a mapping error is diagnosed the process data values for the Inputs and Outputs will be set to
zero.
∗2: The I/O process data values will be set to zero when the IO-Link device is not detected or has been
disconnected.
Note) Diagnostics for short circuit detection (L+, P24, C/Q) is duplicated in the PROFINET 'diagnostic
data on I/O mapping'. Refer to 5 Diagnosis
.
Additional diagnostic faults are reported via the IO-Link module LED display and the PQI
diagnostic bytes for the EX245-LA1/LB1. Refer to 9.5 Slot structure
.