Controller functions
Page 30
RES-403
9.10
Diagnostic interface/visualization
software (as of October 2005)
An interface with a 6-pole Western socket is provided
for systemdiagnostics and process visualization. This
interface allows a data connection to be set up to the
ROPEX visualization software using the ROPEX com-
munication interface CI-USB-1.
Only a ROPEX comunication interface is
allowed to be connected to the diagnostic
interface. Connecting another device (e.g. a
telephone cable) could result in malfunctions or
damage to the controller.
The ROPEX visualization software is described in a
separate document.
9.11
System monitoring/alarm output
To increase operating safety and to avoid faulty heat-
sealing, this controller incorporates special hardware
and software features that facilitate selective fault
detection and diagnosis. Both the external wiring and
the internal system are monitored.
These features assist the operator in identifying the
cause of abnormal operations.
A system fault is reported or differentiated by means of
the following indications.
A.)
Red "ALARM" LED on the controller
three states:
1.
Blinks fast (4Hz)
The AUTOCAL function should be executed (error
codes 104…106, 211, 302, 303; up to September
2005: error codes 8+9).
2.
Blinks slowly (1Hz)
The system configuration is incorrect and the zero
calibration (AUTOCAL function) was unsuccessful
(
ª
section 8.11 "Controller configuration" on
page 18). It corresponds to error codes 110…114
(up to September 2005: error codes 10…12).
3.
Lit continuously:
This indicates that a fault is preventing the controller
from being started (error codes 101…103, 107, 108,
201…203, 307, 308, 801, 9xx; up to September
2005: error codes 1…7).
As a rule, it refers to an external wiring fault.
B.)
Alarm relay (relay contact terminals 5+6):
This contact is set in the factory as follows:
•
OPEN
in operating states A.1) and A.2), but closed
if a "START" signal is activated in one of these
states.
•
CLOSED
in operating state A.3)
If the alarm relay is configured opposite to the factory
setting (
ª
section 8.11.3 "Configuration of the alarm
relay" on page 20), these states are reversed.
C.)
Error code output via the 0
…
10VDC analog
output (terminals 14+15):
Since a temperature indication is no longer necessary
if a fault occurs, the analog output is used to display
error messages in the event of an alarm.
13 voltage levels (up to September 2005: 12 voltage
levels) are offered for this purpose in the 0…10VDC
range, each of which is assigned an error code
(
ª
section 9.12 "Error messages" on page 31).
If a state that requires AUTOCAL occurs – or if the con-
troller configuration is not correct – (error codes
104…106, 111…114, 211, 302, 303; up to September
2005: error codes 8…12), the signal at the analog
output jumps back and forth at 1Hz between the
voltage value which corresponds to this error and the
end of the scale (10VDC, i.e. 300°C or 500°C). If the
"START" signal is activated in one of these states, the
voltage value does not change any more.
Selective fault detection and indication can thus be
implemented simply and inexpensively using the
analog input of a PLC with a corresponding error mes-
sage (
ª
section 9.12 "Error messages" on page 31).
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DI
AG
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