ABB AC500 PLC - Page 908

LED Color OFF ON Flashing
Red --- Communication
error (timeout)
appeared
IP address error
STA2 ETH
(System LED
"SF")
Green Device has valid
parameters
Device is running
parameterization
sequenze
Device has no
parameters
Red --- --- Device has
invalid parame-
ters
S-ERR Red No error Internal error --
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 148: 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
--
Device Specifications
Communication Interface Modules (S500) > Modbus
2019/04/173ADR010121, 13, en_US908