BIFFI ICON 2000 - Diagnosis Message

“ICON 2000v4"
instruction and operating manual
© Copyright by BIFFI Italia. All right reserved. Section 618/42 Page 16
Contents may change without notice
The following settings are supplied by factory:
 DIN 1: mid-travel position
 DIN 2: local stop active
 DIN 3: motor over-temperature (motor thermostat alarm)
 DIN 4: over-torque (hi_hi torque alarm)
 DIN 5: valve jammed alarm
 DIN 6: mid-travel alarm in OP/CL
10.1.3 Diagnosis message
The ICON2000v4_DPV1 interface manages the diagnosis indication coming from the actuator as
stated by the PROFIBUS DP V1 standard.
When the ICON2000v4_DPV1 interface needs to notify a fault to the master while in data
exchange mode, it changes the function code in its response message to “high priority”. During the
next regular bus cycle the master in turn send a “Slave_Diag” request that is answered with a
“Slave_Diag” response. The availability of ICON specific diagnosis information is notified by
Dia.Ext_Diag flag set to 1. Once the master was able to catch the diagnosis information it returns to
the standard cyclic data exchange mode. To notify the termination of the diagnosis incident the
ICON2000v4_DPV1 interface send a “high priority” response. The master answers with a
“Slave_Diag” request that is followed by a “Slave_Diag” response with Dia.Ext_Diag flag set to 0.
The diagnose message implemented by ICON2000v4_DPV1 has the following structure:
Data exchange request
Data exchange response
Data exchange request
Data exchange response (Function code = high priority)
Fault
ON
Slave_Diag request
Slave_Diag response (Diag.Ext_Diag = 1)
Data exchange request
Data exchange response
Data exchange request
Data exchange response (Function code = high priority)
Fault
OFF
Slave_Diag request
Slave_Diag response (Diag.Ext_Diag = 0)
Data exchange request
Data exchange response
Master
ICON2000v4_DPV1
Octet 1
Octet 2
Octet 3
Octet 4
Octet 5
Standard Diagnosis block
6 octets
MSB LSB