UMAX130511 Version 1.00A Preliminary Documentation
– May be subject to change
56 - 141
Sub-Index
1h to 15
Description
Standard error field
Access
RO
PDO Mapping
No
Value Range
UNSIGNED32
Default Value
0
2.2.5. Object 100Ch: Guard Time
The objects at index 100Ch and 100Dh shall indicate the configured guard time respective to the life time
factor. The life time factor multiplied with the guard time gives the life time for the life guarding protocol
described in DS-301. The Guard Time value shall be given in multiples of ms, and a value of 0000h shall
disable the life guarding.
It should be noted that this object, and that of 100Dh are only supported for backwards compatibility. The
standard recommends that newer networks do not use the life guarding protocol, but rather heartbeat
monitoring instead. Both life guarding and heartbeats can NOT be active simultaneously.
Object Description
Index
100Ch
Name
Guard Time
Object Type
VAR
Data Type
UNSIGNED16
Entry Description
Sub-Index
0h
Access
RW
PDO Mapping
No
Value Range
0 to 65535
Default Value
0
2.2.6. Object 100Dh: Lifetime Factor
The life time factor multiplied with the guard time gives the life time for the life guarding protocol. A value of
00h shall disable life guarding.
Object Description
Index
100Dh
Name
Life time factor
Object Type
VAR
Data Type
UNSIGNED8
Entry Description
Sub-Index
0h
Access
RW
PDO Mapping
No
Value Range
0 to 255
Default Value
0