LED Color OFF ON Flashing
CN-ERR Red No system error CANopen Bus is
OFF
Flashing: Config-
uration error
Single flash: error
counter overflow
due to too many
error frames
Double flash: A
node-guard or a
heartbeat event
occurred
Flickering: Auto-
detect is active
S-ERR Red No error Internal error --
I/O bus Green No decentralized
I/O modules con-
nected or com-
munication error
Decentralized I/O
modules con-
nected and
operational
---
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
States of the 27
Process LEDs:
Communication Interface Modules (S500) > CANopen
2019/04/173ADR010121, 13, en_US730
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