6. STATUS AND DIAGNOSTIC INFORMATION
6-3
All Rights Reserved. Copyright © 2006, Rota Yokogawa
IM 01R01B02-01E-E 5th edition October 01, 2020 -00
6.2 Diagnostics
The table below indicates the Bit setting in case of Event:
Table 6.5 Event description and the effect on Display and Bit setting
Bits of parameter
DEVICE_STATUS
DIAGNOSIS_
EXTENSION
Event description
Blinking bars
Event on
display
= 1
= 2
= 3
[1]**
[2]**
[3]**
Serial Communication Failure*
n.a.
n.a.
0
RAM Error*
_ _ _ _ _ _ _ _
0000 0001
0
1
ADC Error*
_ _ _ _ _ _ _ _
0000 0010
1
2
Adj-EEPROM Error
_ _ _ _ _ _ _ _
0000 0100
2
3
Cal-EEPROM Error*
_ _ _ _ _ _ _ _
0000 1000
3
4
Totalizer Value False
_ _ _ _ _ _ _ _
0001 0000
4
5
Flow Overrun
_ _ _ _ _ _ _ _
0010 0000
5
6
EEPROM Error
_ _ _ _ _ _ _ _
0100 0000
6
7
Float Blocking Error
_ _ _ _ _ _ _ _
1000 0000
7
0
Temperature Error
_ _ _ _ _ _ _ _
0000 0001
0
1
Volume Flow Overrun
_ _ _ _ _ _ _ _
0000 0010
1
2
Mass Flow Overrun
_ _ _ _ _ _ _ _
0000 0100
2
3
Autozero Running
n.a.
0000 1000
3
4
Power Supply Failure
n.a.
0001 0000
4
5
Operate Timer Error
n.a.
0010 0000
5
6
Reserved 15
-
0100 0000
6
7
Float Blocking Active
n.a.
1000 0000
7
0
Volume Flow Passivated
n.a.
n.a.
0
1
Mass Flow Passivated
n.a.
n.a.
1
2
Volume Flow Low Limit
n.a.
n.a.
2
3
Volume Flow High Limit
n.a.
n.a.
3
4
Mass Flow Low Limit
n.a.
n.a.
4
5
Mass Flow High Limit
n.a.
n.a.
5
6
Reserved 23
-
-
6
7
Reserved 24
-
-
7
-
-
-
* Note: In case of missing EEPROM, Display indicates "Cal-EEPROM Error" and BUS generates
"Serial Communication Failure".
** Note: [n] indicates the n-th byte of the Parameter
Table 6.6 Classic diagnostics
Label
Octet
Bit
Memory checksum error
1
4
Electronic temperature too high
1
3
Hardware failure mechanics
1
1
Hardware failure of the electronic
1
0
Maintenance required
2
5
New start-up (warm startup) carried out
2
3
Restart (cold startup) carried out
2
4
Ident Number Violation
2
7
More information available
4
7