Table 162: 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
1.7.4.1.9 Measuring ranges
Input ranges voltage, current and digital input
Range
0...10 V
-10...+10
V
0...20 mA 4...20 mA Digital
input
Digital value
Decimal
Hex.
Overflow
>11.7589
>11.7589
>23.5178
>22.8142
32767
7FFF
Measured
value too
high
11.7589
:
10.0004
11.7589
:
10.0004
23.5178
:
20.0007
22.8142
:
20.0006
32511
:
27649
7EFF
:
6C01
Normal
range
10.0000
:
0.0004
10.0000
:
0.0004
20.0000
:
0.0007
20.0000
:
4.0006
:
:
On
27648
:
1
6C00
:
0001
0.0000
0.0000
0
4
Off
0
0000
Normal
range or
measured
value too
low
-0.0004
-1.7593
-0.0004
:
:
:
-10,0000
3.9994
:
0
-1
-4864
-6912
:
-27648
FFFF
ED00
E500
:
9400
Device specifications
Communication interface modules (S500) > Modbus
2022/01/31
3ADR010278, 3, en_US
761