Excel 800 LION
EN1B-0375GE51 R0308
40
Description of the I/O Modules
Common Features
Switches located on the Terminal Socket
Feature Function
Service
button S1
• LED test, see section "Troubleshooting"
on page 68
• L
ON
W
ORKS
service button functionality
for L
ON
W
ORKS
Bus I/O modules
Hex switch
S2
• Module addressing for Panel Bus
I/O modules
LEDs located on the I/O Module
Feature Function
Service LED
(yellow)
• Service information, see section
"Troubleshooting" on page 68
Power LED
(green)
• Information on power supply, see
section "Troubleshooting" on page 68
For the location of these elements, see figures of the
relative modules.
Analog Input Modules
Types of Analog Input Modules, Terminal Socket
Type Description Housing
CLIOP821A Panel Bus analog input module Light gray
CLIOL821A L
ON
W
ORKS
Bus analog input
module
Dark gray
XS821-822 Terminal socket Light gray
Table 41 Excel 800 LION Analog Input Modules
Features
• 8 analog inputs
• Sensor-break and short-circuit detection, see section
"Troubleshooting" on page 68.
Fig. 57 CLIOP821A Analog Input Module with terminal
socket
Legend
1 Service button S1
2 Hex switch S2
3 Service LED
4 Power LED
Functionality of service LED and power LED: see Table 74
to Table 76 on page 72 and following.