1
)
In AC500 the following interface identifier applies:
14 = I/O bus, 11 = COM1 (e.g. CS31 bus), 12 = COM2.
The PNIO diagnosis block does not contain this identifier.
2
)
With "Device" the following allocation applies:
31 = module itself, 1...10 = expansion module 1...10, ADR = hardware
address (e. g. of the DC551-CS31)
3
)
With "Module" the following allocation applies dependent of the master:
Module error: I/O bus or PNIO: 31 = module itself; COM1/COM2: 1...10 =
expansion 1...10
Channel error: I/O bus or PNIO = module type (1 = AI); COM1/COM2: 1...10
= expansion 1...10
4
)
In case of module errors, with channel "31 = Module itself" is output.
State LEDs
LED State Color LED = OFF LED = ON LED flashes
PWR Process
voltage
24 V DC via
terminal
Green CPU module
voltage or
external
24 V DC
supply voltage
is missing
3.3 V system
voltage (I/O
bus) and
external
24 V DC supply
voltage are
present
---
ERR Channel or
module error
Red No error or
process
voltage is
missing
Severe error in
the module
Error on 1 or
more chan-
nels of the
module
Measuring ranges
Risk of invalid analog input values!
The analog input values may be invalid if the measuring range of the inputs is
exceeded.
Make sure that the analog signal at the connection terminals is always within
the signal range.
Resistance temperature detectors
Range Pt100 / Pt1000
-50 ... +400 °C
Ni1000 / Ni100
-50 ... +150 °C
Digital value
Decimal Hex.
Overflow > 450.0 °C > 160.0 °C 32767 7FFF
Measured value
too high
450.0 °C
:
400.1 °C
4500
:
4001
1194
:
0FA1
I/O modules > Analog I/O modules
2022/01/31 3ADR010278, 3, en_US 367