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Installing and putting a TIM into operation
5.7 Startup activities of the TIM module
Group error LED
If an error occurs during startup, the red group error LED (SF) lights up and, if the TIM 3 /
TIM 4 is installed as a CP in an S7-300 rack, a diagnostic interrupt is sent to the CPU. A
message to this effect is also entered in the diagnostic buffer of the TIM 3 / TIM 4. In the
chapter on the SINAUT Diagnostics and Service tool, you will find a table with a summary of
all the errors that can cause the group error LED to light up, as well as a detailed description
of each error message.
Note
After transferring the SDBs to the TIM, the group error LED flashes for approximately 10
seconds. This indicates that the TIM has registered the transfer and will automatically start a
reset after a further 10 seconds and the parameter assignment from the newly transferred
SDBs will be adopted. The TIM then behaves the same as following power "ON".
Default startup
If the situation arises that the TIM 3 / TIM 4 can no longer be addressed over the MPI bus
following startup due to a bad parameter assignment, the TIM can be returned to a defined
state using the default startup. Following the default startup, the TIM can be assigned new
parameter settings over the MPI bus.
To force a default startup, follow the steps outlined below:
1. Press the reset button accessible from below until all the LEDs on the TIM light up.
2. Follow the various startup phases of the TIM based on the LED display.
3. During startup phase 3 (service mode, see table), press the reset button again until all the
4. Wait until the startup of the TIM is completed and the default startup is signaled by the
5. The TIM can now have new parameters set over the MPI bus using default MPI
6. Restart the TIM on completion of the parameter assignment.
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LEDs on the TIM light up.
LEDs.
address 3.
Note
If another subscriber on the MPI bus already has MPI address 3, a conflict will arise. You
will then have to disconnect one of the two modules temporarily from the MPI bus to be
able to transfer the parameters (including the correct MPI address) to the TIM.
SINAUT ST7 Station control system - System Manual
System Manual, 05/2007, C79000-G8976-C178-06
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