ABB AC500 PLC - Page 1036

LED Color OFF ON Flashing
I/O-Bus Green No expansion
modules con-
nected or com-
munication error
Expansion mod-
ules connected
and operational
---
ETH1 Green No connection at
Ethernet inter-
face
Connected to
Ethernet inter-
face
---
Yellow --- Device is trans-
mitting telegrams
Device is trans-
mitting telegrams
ETH2 Green No connection at
Ethernet inter-
face
Connected to
Ethernet inter-
face
---
Yellow --- Device is trans-
mitting telegrams
Device is trans-
mitting telegrams
Table 173: States of the 27 Process LEDs
LED Color OFF ON Flashing
AI0 to AI3 Yellow Input is OFF Input is ON
(brightness
depends on the
value of the
analog signal)
--
AO0 to AO1 Yellow Output is OFF Output is ON
(brightness
depends on the
value of the
analog signal)
--
DI0 to DI7 Yellow Input is OFF Input is ON (the
input voltage is
even displayed if
the supply
voltage is OFF)
--
DO0 toDO7 Yellow Output is OFF Output is ON --
UP Green Process supply
voltage missing
Process supply
voltage OK and
initialization fin-
ished
--
UP3 Green Process supply
voltage missing
Process supply
voltage OK
--
CH-ERR1 to CH-
ERR3
Red No error or
process supply
voltage missing
Internal error Error on one
channel of the
corresponding
group
Device Specifications
Communication Interface Modules (S500) > PROFINET
2019/04/173ADR010121, 13, en_US1036