ABB AC31 Assembly And Operation Manual page 132

AC31 Adapters
Replacement devices: I/O modules > Replacement device 07AC91-AD2
Channel
Channel error:
0 ... 7
An exceedance of the measuring range is signaled even if nothing is connected to an analog
voltage input.
Table 78: Device LEDs
LED
PWR
CS31
bus
S-ERR
I/O bus
The S-ERR LED remains on even if the error no longer occurs. The error must be confirmed by
the control system (PLC/central unit), e.g. by means of a function block
data and CS31 bus system data" on page 4.
Special cases with rapidly flashing LEDs (approx. 5 Hz):
● All 4 LEDs flash rapidly: An incorrect S500 module is connected to the device. The device
fails to initialize.
● The LEDs of the CS31 bus, S-ERR bus and I/O bus flash rapidly: Invalid position of DIP
switches. The device fails to initialize.
● The LEDs of the S-ERR bus and I/O bus flash rapidly: A checksum error occurred in an
internal Flash memory.
● The LED of the I/O bus flashes rapidly: An error occurred in an internal RAM.
132
Error code (COD-
ESYS)
49
The error codes that are transferred by the replacement device via the CS31
bus bus are newly displayed in CODESYS. Each error code of the CS31 bus
(table column 3) produces the error code in CODESYS (table column 2). As a
result, it is possible to operate the replacement device with a new control
system (PLC/control unit), e.g. 07KT98-ARC-AD, as well as with an old control
system (PLC/central unit), e.g. 07KT98.
Status Color LED off
Voltage supply Gree
n
CS31 bus com- Gree
munication n
Error Red
I/O bus commu- Gree
nication n
3ADR010122, 8, en_US
Error code (CS31
bus)
10
LED on
No internal supply Internal supply
voltage voltage
No CS31 bus com- CS31 bus bus
munication communication
No error Static error
(must be con-
firmed by the
control system)
No I/O bus commu- I/O bus com-
nication munication
Description
Analog value is out of
measuring range (on
analog inputs)
LED flashes
-
Only diagnosis, no
data transfer. Trans-
mission is disturbed.
No CS31 bus con-
nection or activity
Error I/O bus com-
munication
Ä Chapter 1.3 "System
2018/09/24