Manual_BMMS_CANopen_BECH_EN_rev05.docx
13/20
Baumer Electric AG
18.06.2013
Frauenfeld, Switzerland
8 Alarms, warnings, errors, emergency messages and error behavior
Figures 4, 5 and 6 show the surveillance mechanisms. If one of them fails, an alarm or warning will be indicated. The
behavior upon an error can be defined. It is described in chapter 8.3.
8.1
Absolute encoder redundant with cable-pull System
Figure 4: Block diagram redundant encoder
Position Monitoring Encoder A Error
Position Monitoring Encoder B Error
Difference Monitoring Error
Battery Monitoring Error
Reset
Generic Position Alarm (Bit 0)
Position Alarm A (Bit 12)
Position Alarm B (Bit 13)
Difference Alarm (Bit 14)
Battery Warning (Bit 4)
Generic Error (Bit 4)
Communication Error (Bit 0)
D
R
S
OR
OR
D
R
S
D
R
S
OR
CAN-Controller
Bus Passiv
Bus Off
Bus Warning
Bus Active
RX Buffer Overflow
Error Behaviour
1029h-2h
Error Behaviour
1029h-1h
8100h
8120h
8110h
5000h
5000h
5000h
5000h
Emergency Message
OR
OR
Write xx0x xxxx xxxx xxxx to Alarms (6503h)
Write xxx0 xxxx xxxx xxxx to Alarms (6503h)
Alarms 6503h
Error Register 1001h
Warnings 6505h
Emergency Error Codes
D
R
S
OR
Write xx0x xxxx xxxx xxxx to Alarms (6503h)
Reset Reason Watchdog
Watchdog Warning (Bit 2)
6100h
8.1.1
Difference monitoring
Figure 5: Block diagram difference monitoring
Difference Monitoring
Error When ABS(Pos A
– Pos B) >
(Value Object 4000h)
Physical
Position A
[Inc]
Physical
Position B
[Inc]
Difference Monitoring Error
Direction
Correction
[Inc]
Direction
Correction
[Inc]