User's Manual

Communication modules
7.7 RF170C
SIMATIC RF300
System Manual, 06/2008, A5E01642529-02
221
After start-up or updating the firmware, the LEDs SF, PRE, ERR and ACT indicate the
operating status or faults of the RF170C:
SF PRE_1 ERR_1 ACT_1 PRE_2 ERR_2 ACT_2 Description
Off Off Off On Off Off Off Start-up active
On Off On Off Off Off Off Checksum error at start-up *
On Off Off Off Off On Off Firmware invalid *
On On On On On On On LED test for approximately 4 seconds;
otherwise firmware fault *
On Off On On Off On On Checksum error at start-up *
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 number of flashes (n, m) indicates the
last reported error on a given channel.
– – 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.