
Diagnostics and error messages
7.2 LED displays on the RF170C communication module
SIMATIC RF170C
46
Operating Instructions, 02/2022, J31069-D0176-U001-A6-7618
Status and error LEDs on the RF170C connection module
Table 7- 1
Status and error LEDs for RF170C
LED
Meaning
SF
Group error
ACT_1, ACT_2
The corresponding reader is active processing a user command. (MOBY only)
ERR_1, ERR_2
1)
A flashing pattern indicates the last error to occur.
PRE_1, PRE_2
2)
Indicates the presence of a transponder.
RxD_1, RxD_2
Indicates live communication between the CM and the reader. May also indicate
malfunctions on the reader.
1)
The meaning of the individual flashing pattern is described in the relevant FB documentation.
There, you will also find the relevant error descriptions.
2)
In the case of multitag operation, this LED uses a flashing interval to indicate the number of data
carriers currently within the range of the reader.
After start-up or updating the firmware, the LEDs SF, PRE, ERR and ACT indicate the operating
status or errorss of the RF170C:
Table 7- 2
Operating states
SF
PRE_1
ERR_1
ACT_1
PRE_2
ERR_2
ACT_2 Description
Off
Off
Off
On
Off
Off
Off
Startup active
On
Off
On
Off
Off
Off
Off
Checksum error at startup *
On
Off
Off
Off
Off
On
Off
Firmware invalid *
On
On
On
On
On
On
On
LED test for approximately 4 seconds;
otherwise firmware error *
On
Off
On
On
Off
On
On
Checksum error at startup *
On
On
On
On
Off
On
On
Checksum error of the firmware *
On
Off
On
On
On
On
On
External RAM defective *
On
On
Off
On
On
On
On
ESSA3 defective *
On
Off
On
On
On
Off
On
ID error firmware *
–
Off
1 x flash
every 3 s
Off
Off
1 x flash
every 3 s
Off
RF170C successfully started up, waiting for
reset command
–
–
n x flash
every 3 s
–
–
m x flash
every 3 s
–
The last reported error in the channel can
be seen from the number of flashes (n, m).
–
–
Flashing
Rapid
flashing
–
Flashing
Rapid
flashing
Firmware update; alternate flashing of the
error LEDs at approximately 1 Hz
– = not relevant
* If this fault recurs, the module is defective and must be replaced.