Checking The Operation Indicator Leds; Figure 5-3 Checking The Operation Indicator Leds - Hitachi HSC-2100 Hardware Manual

5 MAKING USE OF MODULES

5.1.4 Checking the operation indicator LEDs

The operation of digital input/output modules can be monitored by checking the operation
indicator LEDs. When checking these LEDs, squarely view the LED panel provided on the
front of the module, as shown below.
LED panel
Squarely view the panel to
check the LEDs.

Figure 5-3 Checking the Operation Indicator LEDs

5-4