User-Initiated Self Test; Table 1-3 Indicator Status After User-Initiated Test - Siemens SIMATIC TI505 User Manual

Diagnostic Tests (continued)
User-Initiated
Self Test
1-18 Installation and Set-up
The User-Initiated Self Test performs a complete test of the MODNIM
hardware, including the communications ports. To run this test, follow the
steps listed below.
NOTE: Since this test includes the communications ports, be sure to
disconnect the MODNIM from the network.
1. Disconnect network cables from both network ports of the MODNIM.
2. Install the loopback connectors supplied with your module on ports A
and B of the MODNIM.
3. Press the RESET button and, at the same time, press and hold the
TEST button for about 5 seconds.
The TEST MODE indicator light turns on to signal the start of the test,
while all other indicators go off. After about six seconds, all LED indicators
will flash on and off for approximately two seconds. When the test has
finished executing, the TEST MODE indicator flashes at a rate of 2 Hz.
Table 1-3 shows how to interpret the results of the user-initiated diagnostic
test according to the status of the indicator lights on the MODNIM. The
indicators show the pass or fail status of each of the tests conducted.

Table 1-3 Indicator Status after User-Initiated Test

Indicator
NIM GOOD
PC/NIM COMM GOOD
RECEIVE
TRANSMIT
TEST MODE
If the User-Initiated Self Test is completed successfully, then you can
reconnect the network cable to the MODNIM and press the Reset button.
The MODNIM will re-initialize and be ready for normal operation.
Pass Fail
On Off
On Off
On Off
On Off
Flashing Flashing
SIMATIC TI505/TI500 MODNIM User Manual
Diagnostic Tests Included
ROM, RAM, watchdog timer
Communications with PLC
Network Port A: media
interface; loopback connector
Network Port B: media
interface; loopback connector
Tests completed