LED
State
Color
LED = OFF
LED = ON
LED flashes
Outputs
O0...O7
and
O8...O15
Analog
output
Yellow Output is
OFF
Output is ON
(brightness
depends on
the value of
the analog
signal)
--
UP
Process
voltage
24 V DC via
terminal
Green Process
voltage is
missing
Process
voltage OK
--
CH-ERR2
Channel
error, error
messages in
groups
(analog
inputs or out-
puts com-
bined into the
groups 2 and
4)
Red
No error or
process
voltage is
missing
Severe error
within the cor-
responding
group
Error on one
channel of the
group
CH-ERR4
Red
CH-ERR *) Module error Red
--
Internal error
--
*) Both LEDs (CH-ERR2 and CH-ERR4) light up together
Output ranges
Output ranges voltage and current
The represented resolution corresponds to 16 bits.
Range
-10...+10 V
0...20 mA
4...20 mA
Digital value
Decimal
Hex.
Overflow
> 11.7589 V
> 23.5178
mA
> 22.8142
mA
> 32511
> 7EFF
Value too
high
11.7589 V
:
10.0004 V
23.5178 mA
:
20.0007 mA
22.8142 mA
:
20.0006 mA
32511
:
27649
7EFF
:
6C01
Normal
range
10.0000 V
:
0.0004 V
20.0000 mA
:
0.0007 mA
20.0000 mA
:
4.0006 mA
27648
:
1
6C00
:
0001
0.0000 V
0.0000 mA
4.0000 mA
0
0000
-0.0004 V
:
-10.0000 V
0 mA
:
0 mA
3.9994 mA
0 mA
0 mA
-1
-6912
-27648
FFFF
E500
9400
Value too
low
-10.0004 V
:
-11.7589 V
0 mA
:
0 mA
0 mA
:
0 mA
-27649
:
-32512
93FF
:
8100
Underflow
0 V
0 mA
0 mA
< -32512
< 8100
Device specifications
I/O modules > Analog I/O modules
2022/01/31
3ADR010278, 3, en_US
497